Document EKYYqYqyM2an6V8oGYwkmQnR

Nissan Engineering Standard NES Methods of High Temperature Test for Synthetic Resin Parts M 0131 Revised 1983 1. SCOPE This Nissan Engineering Standard shall apply to the methods of high temperature test for synthetic resin parts used in automobiles (hereinafter, referred to as test methods)* Method 1 Class 3, Method 2, Method 4, and Method 5 may not be applied In the case thermal cycle test methods for synthetic resin parts (M 0132-1983 Revision) are applied. Z. CLASSIFICATION OF TEST METHODS Test methods shall be classified into the fi kinds shown in the table below according to the places of installation and material qualities. Table Classification of test methods Classl--A Class i-B Class 2 Mwod 1 Applicable parts Farts installed in places strongly affected by the sunlight (direct rays. conduction, radia tion, convection) in the inside of car Class 3 Class A Method 2 Class fi Method 3 Gass A Gass B Gass 1 Method 4 Class 2 Gass 4 Class I , Method 5 Gass 2 Farts installed in places little affected by the sunlight in the inside of car Parts installed on the outside of car Parts installed in engine room Farts installed in places exposed to the hoc air of engine room on the outside of car Test temper ature C 115 3 (*) 110*3 (J) 160 * 3 (?) , 90 2 SOI 2 70 i Destination (l) S .D All destinations All destinations S ,D Examples of applicable parts (M (reference) Upper surface of instrument, Upper surface of rear parcel shelf, Upper end of .rear seat back, Upper surface of door trim (*), Upper surface of body side (4) Inside mirror, upper surface of column cover, upper surface of steering wheel assembly, upper surface of arm rest, upper surface of front seat cushion, upper surface of luggage trim, sunvjsor, glass sun roof, upper surface of rear wheel house (H/B car) Roof trim, pillar mm, console, door trim, seat assembly, body side trim Floor trim, trunk trim, luggage trim of the type separated from passenger room by rear parcel shelf, etc., dash trim, dash side trim 100*3 (*) 90 * 2 (*) 125*2 115*2 90 2 130*2 90 2 S Radiator grill, head lamp finisher, i&u uuiaidc mirror, D molding, ornament, resin bumper Radiator shroud, reservoir tank, radiator hose strap Air inlet duct, distributor cap, alternator, fuel pump, spacer,, engine fan, motor fan Tuel strainer, washer tank, conistor, battery Hood louvpe , , 1 ,. Cowl top grill (with hood louvre), hood secondary latch coating Not**: (M S; North Amtrici, Australia, Middle and Near, East, Central and South America, tropical tones of Southeast Asia' .' D: Japan, general exports (M Applicable parts may vary according to the shapes of cars. (') Surface temperature of black panel due to infrared ray lamps. Atmospheric temperature of the back of test piece shall be SO ~ SSC for Method 1, Class 1 and Class 2; 70 ~ 80'C for Method 3. (*! Test temperature for upper surface of door trim and upper surface of body side trim shall be 110C ('), regardless of destination, * CHARDO 01883 2 M 0131 1983. 3. CONDITIONS OF TESTING PLACE ,J fl) Room temperature condition: Testing place shall be put in standard temperature condition, rw 3 (temperature;-16 -- 25C) and standard humidity condition, Class 3 (relative humid ity: 46 ~ 86%) specified In JIS Z 8703-1976 (Standard Conditions of Testing Places). (2V Standard Testing place shall be put in standard temperature and humidity ebndi- tiona, Class Z (temperature: 20 2C, relative humidity: 66 2% ) specified in JIS Z 8703-- 1976. APPARATUS , , , ... . . (1) - Constant temperature oven equipped with infrared ray lamps, (an example of which is shown in Fig. 1.) ,, (2) . Constant temperature oven having a temperature control capacity or within 2 C. Fig. 1 Constant temperature ovn with infrared ray lamps Unit: mm D Ramarfcs 1. A, B, C, In Fig. 1 denote the following: -A: Height from test piece (datum level) to lamp, ISOOmm end over. B, C: Distances from the outermost surface of test piece to wall surfaces before and behind snd on right ind left, respectively, SOOmm and over. 2. Celling shall be made of reflection plate and wall surfaces on four sides and floor surface shall be sand blasted. 3. Infrared ray lamps (250W) shall beused. The center of each lamp shall be at the Intersection point of the lines drawn at Intervals of 180mm crosswise as shown in Fig. 1 (right). 4. Essential conditions for constant temperature oven with infrared ray lamps. (1) Capacity to control the temperature inside the test temperature setting datum level (*) within a 3`C and to control the temperature defference between the parti 100mm above and below the datum level within test temperature t 5* C. (2) It is desirable that infrared rays are uniformly irradiated against the test piece. Therefore, the spac* . ing between each lamp should be reduced to the minimum, and the oven should be provided with a mechanism to control the irradiation quantity and temperature of infrared rays by. adjusting voltage and irradiation distance. Mots (') The half of the highest snd lowest positions of test piece testing surface shall be referred to as reference height and the level at the same height shall be referred to as test temperature setting datum level (datunl level) (Fig, 2). 5. In Method 9, infrared ray irradiation angle shall be 80' C. If it is impossible because of the construction of the equipment, test piece shall be inciinded by 10* C. -2- CHARDO 01884 3 M 0131 1983 Fig. 2 Datum level At test pieces, completed products (*} shall be used as a rule. Test shall be performed after the test pieces have been allowed to stand for 24 hours in the standard condition specified in 3. (2) unless otherwise specified. Details of the test and the number of test pieces shall be subject to the agreement between the parties concerned. Nat* {*): 'Completed products shall refer to moldings completed as parts and shall Include those subjected to sec ondary working and their complexes. 6. TEST CONDITIONS (1) Test time: 4 hours (2) Test temperature: Shall be as shown in the table (Page 1). 7. OPERATION (1) Test pieces shall be put in normal service condition (7) in the constant temperature oven set at a specified test temperature () and heated for a specified time. (2) After heating for the specified time, the test pieces shall be checked as to whether harmful deformation and sticky surface did not occur at the specified temperature and whether abnor malities, such as breakage and fault, do not occur by the ordinary way of handling (). If this is impossible on account of the construction of the equipment, the test pieces shall be taken out from the oven and the presence or absence of abnormalities shall be checked within 3 minutes. (3) After the procedure (2) has been taken, the test pieces shall be allowed to stahd at room tem perature for 30 minutes. ' (4) When the test pieces have been allowed to stand for 30 minutes, they shall be checked as to the presence dr absence of abnormalities and residual deformation shall be measured. Notes: (') Normal service condition shall refer to th condition in which test pieces are installed on the test stand or jig just at they are loaded on automobQies. In the case of mounting a weight or applying a load condi tion* shall be subject to the agreement of the parties concerned. H Ordinary way of handling shall mean; (a) Tapping with hand lightly, holding down, pulling, plunging nail, (fa) Kicking by foot, mounting something, pressing. (c) Leaning against, seating on them. (*! In Method l. Class 1 and 2 and Method 3, a black panel and a pyrohellometer shall be arranged within the datum level (Fig. 3) and the black panel shall be set so that it* temperature may become the spec ified temperature. To set the black panel temperature, use the pyrohellometer. The black panel and it* mount and the pyrohellometer and its mount shall be of the following specification: (a) Black panel (1) Sire: 70mm (W) by 150mm (L) by 0.8mm (T) (2) Material: NP material (NES M2020 (cold rolled carbon steel sheet and strip for automobiles)] or their equivalents. (3) Surface:' After blackening by fire, the surface shall be poUched by rubbing with #1500 emery paper in longitudinal direction 5 times back and forth, (4) Back: A wooden piece, 10mm square and 70mm long, shall be attached to each end of the back with a bothside adhesive tape of non-woven fabric type. This size of the tape shall be 10mm (W) by 70mm (L) by 0.15 - 0.16mm (T), (5) Thermocouple: A CA wire, 0.32 i 0.01mm in diameter, shall be used. (6) Installation of thermocouple: The temperature sensitive part of the thermocouple shall be inserted in the central part of the black panel by fitting a 10mm (W) by 70mm (L) by 0.8mm (T) steel plate (NP material) on its back with 2 bolts (MS X 0.8 x 10) on both ends. -3 -- CHARDO 01885 */ t 1< ' . ! i Fig. 3 4 M 0131 1983. Unit:mm (b) Mount (Same specification for both black panal and pyrohellometer) (1} State: Slse of upper surface: 110mm (w) by 190mm (L) by reference height (height from tester Soar surface to datum lerel of taat placa) --10mm (2) Material: Wood (Upper surface shall be made of 10mm (T) plywood.) (3) Surface: Shall' be painted in black. The upper surface of the mount shall be horizontal. (e) Arrangement of black panels and pTrohcliometer (1) Black panel shall be put on the upper surface of the mount as shown in Fig. 4. Fig. 4 Plan Unit: mm Black panel Ots. o Upper surface of mount 20 ISO 190 S (2) PyroheUometer shall be arranged so that its center may agree with the center of the upper sur* face of the mount as shown in Fig, S. Fig. S Plan Unit: mm -4 CHARDO 01886 6 '*131 sia3 t (3) Til-'-'f panels and pyrohIiomt*r shill be imaged at the paints of intersection of the straight line* drawn si intervals of 250mm In longitudinal direction and of 400mm in width's direction from the center of the test piece as shown in Fig. 6, Fig.6 Plan Unit: mm Q Black panel $ Pyrohciiometer 8. INDICATION (1) Changes in appearance and shape shall be indicated in writing and details shall be reported by submitting photo or actual sample. (2) Dimensional change shall be indicated in mm down to the first decimal place. (3) The surface temperature of the test pieces and the oven temperature due to the infrared ray * lamps and atmospheric temperature during the test and the measured results of the quantity of solar radiation shall be reported in writing. 9. CRITERION (1) The test pieces tested shall be free from harmful deformation, sticky surface, breakage, and hault. Details shall be subject to the agreement of the parties concerned for each location and part and concrete instructions will be given in drawings. (2) The Temperature range in which the performance of functional parts should be guaranteed will be determined for each part and instructed in drawings. - (3) Critical performance shall be confirmed by testing the test pieces under severer conditions, viz., at higher temperature than specified temperature and for a longer time than specified time.' * * Example: In the case of Method 1, Class 1--A. at 120C for 4 hours or at 115 C for 48 hours 10. STATEMENT tN DRAWINGS Statement in the drawings covered by this standard shall be in accordance with the following proce dures: It shall be made in accordance with NES M013X--1983, Method , Class , with the exception of test temperature and time, which shall bei lC/nh and atmospheric temperature shall be QC. Criterion . 1. Y-directional pull-out force shall be kg/ordinary temperature and kg/dC and over. 2. Z-directional deformation shall be as shown in drawing. It shall be Q "m max. at point A. -5- CHARDO 01887 NES Methods of Thermal Cycle Test for ' ' M 0132 Synthetic Resin Parts Revised IB83 1. SCOPE ' ;; This Nissan Engineering Standard shall apply to the methods of thermal cycle test for synthetic resin parts used in automobiles (hereinafter, referred to as test methods). J,. ," Z CLASSIFICATION OF TESTMETHOOS Test methods shall be classified into the 5 kinds shown in Table 1 according to the places of instal lation and material qualities. ... Table 1 Classification of test methods Applicable parts Destination (*) Applicable parts (2) by number of cycle 2 cycles | 4 cycles 110 cycles (J) Method 1 Parts installed in places storongly affected by the sunlight (direct rays, conduction, radiation, convection) in the in side of car All destinations Class A Method 2 Class B Class 1--A Method 3 Class t-B Class 2-A Class 2--B Parts installed in places little affected by the sunlight in the inside of car Parts installed on the out side of car and parts made of materials subject to the effect of humidity, such as fiber and paper, and in stalled in places suscepti ble to the effect of the sunlight in the inside of car Same as above and in ad dition, installed in places little affected by the sunlight S D S. D S D Class 1 Method 4 Class 2 Puts installed in engineroom All destinations Class 4 Class I Method 5 Class 1 Parts installed in places exporsed to the hot air of engine room on the out side of car All destinations Roof trim, sunvior, pillar trim, column cover, rear percel trim, seat, door trim, luggage trim; kicking plate Floor trim, trunk trim, dash trim, dash side trim Instrument panel as sembly, in side minor, steering wheel Seat belt, retractor, seat device Resin made bumper, rear finisher, molding, ornament Molded ceiling, Outside rear parcel trim minor, of press board, instrument carpets of hatch filled with back car, etc. sawdust Floor carpet, floor mat, trunk mat Radiator shroud, reservor tank, radiator hose strap Air inlet duct, motor fan, alter nator, ASCD, distributor cap, engine fan, fuel pump, spacer Battery, fuel strainer, washer tank, canistor Hood louvre j Cowl top grill, hood sec ondary latch coating, radi ator gull, head lamp finisher Notes-. (' | S'. North America, Australia, Middle and Near East, Central and South America, Africa, Tropical tones of Southeast Asia D: Japan, general exports () Applicable parts may vary according to the shapes of cars. - 1/4 - CHARDO 01888 <*) Shall be performed for functional parts, such as the outserted, inserted, and laminated parts of resin material and metallic material, and instrument assembly. 3. CONDITIONS OF TESTING PLACE (1) Room temperature condition: Testing place shall be put in standard temperature condition, class 3 (temperature: 15 ~ 25C) and standard humidity condition (relative humidity: 45 35to) specified in JIS Z 8703--1976 (Standard Conditions of Testing Places). (2) Standard condition: Testing place shall be put in standard temperature and humidity condi tion, class 2 (temperature: 20 2C, relative humidity: 65 2%), specified in JIS Z 8703-- 1976,................................. 1;........................................................... ........ ..... ...................................... 4. APPARATUS : (1) Constant temperature .oven A constant temperature oven of the following specifications shall be used: Temperature control: Within 2C Heating and cooling capacities: The interior of the oven can be heated or cooled to a set temperature within 30 minutes with test pieces and jig in it. (2) Constant temperature constant humidity oven A constant temperature constant humidity oven of the following specifications shall be used: Temperature control: Within 2C Humidity control: Within t 5% Heating and humiditing capacities: The interior of the oven can be heated and humidified to a set temperatime and humidity within 30 minutes with test pieces and jig in it. 5. TEST PIECE As test pieces, completed products (4) shall be used as a rule. Test shall be performed after the test pieces have been allowed to stand for 24 hours in the standard condition specified in 3, (2), unless otherwise specified. Details of the test and the number of test pieces shall be subject to the agreement between the parties concerned. Note (*); Completed products shall refer to moldings completed as parts and shall include those subjected to secondary working and their complexes. #. 6. TEST CONDITIONS Test conditions shall be as shown in Table 2. Table 2 Classification of test methods Test conditions Method 1 (90 C/4h--room tcmp,/0.5h---40'iC(` j/l.ih--room temp./0:5h=l cycle) x t, 4, 10 cycles (-30*0) Method 2 Method 3 Class A (80 C(* )/4h--room temp./O.Sh---40*C(` )/1.5h--room temp./0.5 h=l cycle) (70* C / (-30"C) . Class B x 2, 4, 10 cycles (9^C/4h-room7Fmp./0Jh---40"C(<)/1 .Sh-room temp./OJh-^OT. jS?TRH/3h- Class 1-A (-30*0 room temp./0.5h--40* C(` )/l .5h--room temp./0,5h=l cycle) x 2,4,10 cycles - ( -30*0 Class 1 -B (80*CC )/4h--room temp./0.5h-^~40C(' )/l.5h--room temp,/0.5h-- 70*C. 95% RH/3h-- Class 2~A (70* C / (-30*0 Class 2 -B room temp./Q.5h-- ~40C/1.5h--room temp./Q.5h=l cycle) x 2,4, 10 cycles (-30*0) Class 1 Method 4 Class 2 Class 4 Method S Class 1 Class 2 (125C(") j (115*C /4h--room temp./0.5h-----40'C(J)/1.5h-room temp./0.5h-70*C. 95% RH/3h- ( 90C / (-30*0) room temp./0,5h----40*C(,)/1.5h-*room temp./O.Sh*! cycle) x 2 cycles (-30*0 a3oc(*) / ( 90*C /4h--room temp./O.Sh-^O'CO/l.Sh-room temp,/0.5h-7Q*C. 95% RH/3h- ' (-30*0 room temp./0.5h---40C(`)/I.5h--room temp./0.5h=I cycle) x 2 cycles (-30*0 Notes: CM: May be - 30"C when used only in places other than the very cold districts of North America and Europe. Hs Class A.......... 80C, Class B............ 70C Cl: Class 1--B, Class 2--A...........S0C, Class 2~B............ 70"C (M: Class 1.......... 125 C, Class 2............ 115C, Class 4............ 90* C C): Class 1.......... 130C, Class 2.............90C Temperatures for radiator grills of turbocars, etc. shall be determined separately. -2 - CHARDO 01889 1983 esirable that the temperatures of the test pieces and jig in the oven shall reach the set temper- ^ "thin 30 minutes regardless of the kind of constant temperature oven (1-oven type or 3-oven vpe) pattern of test condition is shown in Fig. 1. . - attem 1 Fig. 1 Example of sat temperature program 90C/4h ... f---------------------------- f -1 ' -- -< - ........ . 1 ' Allowed to Allowed to Allowed to ) stand at stand at stand at high temp. low temp. high temp. for 4 h. for 1.5 h. and high Allowed to stand at htimiditv Allowed to stand at for 3 h. room temp, room temp, for 0.5 h. for 0.5 h. 7. OPERATION (1)" Test pieces shall be installed in normal service condition (10), put in the constant temperature oven or constant temperature constant humidity oven adjusted to a specified thermal cycle condition one by one, and held for a specified time respectively. (2) When high temperature (including humidifying condition) and low temperature tests have been finished out of the tests under specified thermal cycle conditions, the test pieces shall be checked according to the destination of cars as to whether harmful deformation, wrinkles and sticky surface did not occur at the specified temperature and whether abnormalities, such, as breakage and fault do not occur by ordinary way of handling the parts viz., 1 Tapping with hand lightly, holding down, pulling, plunging nail. 2 Kicking lightly by foot, mounting something, pressing. 3 -Leaning against, seating on them Specified temperatures shall be as follows: High temperature: Parts used for trim 70C Other parts Test temperature Low temperature: --30C as a rule. --40C for seat, door arm rest, pull handle, trunk trim, and luggage trim for very cold districts. (4) After finish of the specified thermal cycle tests, the test pieces shall be allowed to stand at room temperature for over 30 minutes and checked as to the presence or absence of abnormal ities and deformation, if any, shall be measured. Note ('*); Normal service condition shall refer to the condition in which test pieces are installed on the test stand or jie just as they are loaded on automobiles. In the case of mounting a weight, the weight and demensions shall be subject to the agreement of the parties concerned. Example: Instrument globe box 1.2 kg Rear percel shelf 5.0 kg 8. INDICATION (1) Changes in appearance and shape shall be indicated in writing and details shall be reported by submitting photo or actual sample, (2) Dimensional change shall be indicated in mm down to the first decimal place. (3) Measured values of the temperature and humidity in the oven during the test shall be submit ted. J CRITERION he test pieces tested shall be free from abnormalities such as harmful deformation, extreme regidity, md a decline in strength. Details shall be subject to the agreement of the parties concerned for each location and part. --3-- CHARDO 01890 J9S3 10, STATEMENT IN DRAWINGS Statement in the drawings covered by this standard shall be in accordance with'the following proce dures: . 1, ; It shall be made in accordance with NES M 0132--1983, Method , class , with the exception of test temperature and time, which shall be C/ h, -- Q Cf h, cycles. ' Criterion 1. Y-directional pull-out force shall be fcg/ordinaiy temperature, kg/ C and over. 2. Z-directional deformation shall be as shown by drawing. It shall be mm 'maxi at point A...................... ' CHARDO 01891 Nissan Engineering Standards NES M 0133; Testing Methods of Chemical Resistance for " Revised i 7s Synthetic Resin Parts 1. Scope: -This -Standard specifies the.testing methods- of-chemical resistance fov-synthetic resin parts (hereinafter referred to as "testing method") to be used for automobiles, 2. Classification of Testing Method*: The testing methods shall be classified into four as shown in Table 1, depending on the conditions under which the parts are used and the locations in which they are installed. Table 1 Testing methods Applications Testing Conditions Required chemical resistance Method 1 Parti to be used ai vessels or Dipping the equivalent of them. 0) resistance to all chemicals used in vessels. Method 2 Parts to be installed inside the car (or compartment}. Wiping <*) Gasoline resistance,gss oil resistance, oil resistance (*), synthetic sweat resistance, regent resistance. Method 3 Method 4 Parts to be installed outside the car (or compartment). Farts to be installed in the engine room* Spot test <J) Washer liquid resistance, detergent resistance, under coat, resistance, gasoline resistance, gas oil resistance, oil resistance, kerosme resistance, add resistance, protective agent resistance, wax resistance. Gasoline resistance, gss oil resistance, oil resistance, kerosine resistance, add resistance, brake liquid resis tance, anti freeze resistance, washer liquid resistance, anti-corrosive resistance. None (i) The state in which the chemical It being put in the test specimen used at a vessel, or the state in which the test specimen it put in an suitable vessel Filed with the chemical. (>) The state in which the surface of the test specimen has been rubbed lightly a 2 ~ 3 times with the gauze moistened with the chemical. (i) The state in which the chemical hat been dripped on the surface of the test specimen approximately 0.3 ~ Q.S ml through s squirt, etc. (4) The chemicals herein uavd for oil resistance tests comprise engine oil, gear oil, torque converter oil, gresse and kerosene. , 3. Conditions of Telling Place: (1) Room temperature conditions The room temperature shall be maintained in conditions specified in Class 3 (temperature of 20 5 C) of the standard temperature states and class 3 of the standard humidity conditions (relative humidity 65 20%) under JIS Z 8703--1976 (Standard atmospheric conditions for testing). (2)' Standard atmospheric conditions . The standard atmospheric conditions ahull be the states specified in Category 2 of the standard temperature and humidity conditions (temperature of 20C 2C, and relative humidity of 0.5 i 2%} under JIS Z 8703--1976 (Standard atmospheric conditions for testing). 4. Tasting Devices, Instruments and other Supplies (1) Thermostat bath Temperature can be controlled within 2* C ' (2) Wide-mouthed bottle Made of & material unaffected by chemicals (3) Reflux condenser ^ (4) Chemical balance Capable of weighing'to 0.1 mg (5) Squirt Made of a material unaffected by chemicals (6) Gauze An article on the market for medical use RThermostat bath (should be uaed when a test is conducted under high temperature or the test speci men is required to be dried up, white a reflux condenser be used in a test only under high temperature. -- 1/3 CHARDO 01892 M 0133 1879 -.1 5, Test Specimens: The test specimens used in the best ahaii, as a rule^be finished products (s) and .itail be perfectly free from dusts which may affect the results of the test The test specimens should be'tested, otherwise specified, after leaving it for twenty-four hours in the standard conditions specified in 3. (2). Further details of the specimens are decided by the agreements of parties concerned, Th* word* "finished product*" shall mean the complete mold article* inclusive of secondarily pmae--fj and compound onea. TfcrspectaenBiiniiy beeutwben their wmflguratloaa are not apt for taste (Attanttanahouldbe paid to the portion to be cat of the teat specimen aa well aa to the state ir. which it 1* installed.) S. Type* end Concentration of Cftem^ais.* The types and the concentration of the chemicals used in tests are as shown in Table 2. Gasoline )h. (f25 oil Engine oil Gear oil 7cirque converter oil Grease Kerosene Acid solution Brake liquid Synthetic sweatliquid Paint film protective igent Anti-freeze Table 2 Types of Chemicals RN-3 of NES MS052 (Motor gasoline) Concentration (*t ?*)... ... NDF-2 ofNES. M50S3 (Diesel fuel oils) SCF-20W 20 of NES M5051 (Lubricating oil for automobile gasolien engines) MP-9Q of NES M5054 (Automotive gear oil) too Nissan!* specified, oil NWB--2 of NES MSQ65 (Grease for automobiles) No. 2 of JE 2203--1978 (kerosene) Clast 1 of JIS 8951-1972 (Sulfuric add) 25 or 3 NR-3 of NES U5Q55 (Motorvehicle brake Quids) As specified in 9.6.2 of JIS 6772-1976 (Polyvinylchloride coated fabric) As by the agreements of parties concerned LLC of NES M5059 (Engine antifreezes} 100 O'-jWasher liquid Detergent Undercoat Agent Anticorrosive As by the agreements of parties concerned Neutral or alkaline detergent, details are to be by thu agreements of theparties concerned As by the agreements of parties concerned As by the agreements of parties concerned S 100 7. Test Conditions: The test conditions are prescribed in Table 3. Type of Testing Methods Temperature rime(h) Table 3; Descriptions Method i Method 2 Method 3 &) Method 4 Room temperature, or 90 t 2"C 168 Use a reflux condenserjahen evaporation of chemicals is expected. Room temperature Number of wiping is 2 ~ 3 times, back end forth. 4 Dripping volume: 0.3 " 0.5 ml -- 2- CHARDO 01893 ) b ' M 0133 1979 8, Procedure 3,1 Method 1 , (1) Put tile specified chemical either in a vessel used as a test specimen (`), or in a wide-mouthed bottle in which the test specimen is to be placed, and leave the specimen for specified time at a specified temperature. (2) After leaving the specimen, take it out and wash the chemical off with running water until the chemical on its surface Is hardly recognizable. However, should it be impossible to remove the ............chemical with running water, wash.it with such chemicals as alcohol, etc, which do not deterior ate the test specimen. (3) After washing, dry it up under a room temperature or in a thermostat bath at temperatures which may not affectill on the test specimen. (4) After drying up, check the fault caused on- the surface of the test specimen (blister, change of colours, thinning, softening and hardening, etc.) Now; (*) It tha maia. usage at the toat specimen m to uae it as a vassal and th* tmt is to be performed with tba - chemical put In it, it is suggested that the test specimen be installed regularly as far as possible. 8.2 Method 2 (1) Saturate a piece of gauze with the specified chemical. (2) Move the gauze back and forth a few times, pushing it lightly on the test specimen so that the surface of the specimen should become wet. (3) Leave the test specimen as it is for a specified time at a specified temperature. (4) After leaving it, wipe the chemical off the test specimen with a new, clean gauze and see if there is any abnormalities caused on it. 8.3 Method! 3 and 4 (1) Drip the specified chemical 0.3 - 0.5 ml on the surface of the test specimen through a squirt and leave it for a specified time at a specified temperature. (2) After leaving it, wipe off the chemical with a new, clean gauze and examine whether there is any abnormalities on it. 9. Indication (1) Any change in appearance, shape and weight shall be indicated in writing, with details to be presented by photographs or by the actual samples. (2) Any change of dimensions shall be indicated in a nun unit and that of the weight be in a mg unit down to one place of decimals. Indicating in writing is also necessary when the chemicals is affected by the test specimen. CHARDO 01894 NES Weatherability and Light Resistance Test Methods for Synthetic Resin Parts ...Contents.... Page X. Scope................................................. 2 2. Definition of Terms.............................. 2 3. Classification of Test Methods............ 2 4. Conditions for use and Examples of Applicable Parts................................ 3 4.1 Condition of use..................................... 3 4.2 Examples of Applicable parts.............. 3 5. Sampling ofTest Specimens................ 4 52. Appearance, Dimensions, Shape, Electrical Properties, Parts Functions and Chemical Properties....................... 4 5J2 Mechanical-Properties............................. 4 6. Number of Test Specimens.................. 7 7. Test Methods............................................. 7 72, Outdoor Exposure Test Method........... 7 7.1.1 Outaoor Weatherability Test Method.......................... 7 7.1.2 Outdoor Light Resistance Test Method.................................................... 3 7.2 Accelerate*! Test Method.................... S 7.2.1 Accelerated Weatherability Test Method .................................................... 9 7.2.2 Accelerated Light Resistance Test Method............................................. 11 S. Evaluation Method................................... 12 Page 8.1 General Requirements......................... 12 8.2 Evaluation Items .................................. 12 8.3 Appearance ........................................... 12 8.3.1 Discoloration.........................................12 8.3.2 Transmittance ...................................... 12 8.3.3 Gloss';....................................................12 8.4 Resin Properties ........................... .. 13 8.4.1 Shape and Dimensions ......................... 13 8.4.2 Curing ....................................................13 8.4.3 Mechanical Properties........................... 13 8.4.4 Chemical Properties............................. 13 8.4.5 Electrical Properties............................. 13 8.4.6 Parts Functions .................................... 13 9. . Criterion................................................. 13 92 Appearance ...........................................13 9.2 Resin Properties....................... .............14 10. Drawing Description............................. 14 Attached Drawing .......................................... To Reference drawings ........................................ 15 CHARDO 01895 1. SCOPE This Standard specifies the test methods, for synthetic resin parts used on automobiles, regarding weatherability (chiefly for exterior pats) and light resistance (interior parts) (hereinafter referred to simply as "test methods''). Rtmirks: Units and numerals put in { ) in this Standard are those based on the International Unit System (St) and are given for reference. 2. DEFINITION OF TERMS Main terms used_in this Standard shall mean as specified below. (1)' Weatherability................ .............. .................................. Weatherability herein means the resistance of the synthetic resin parts against aging (l) due to sunlight, ozone, rain* and snowfall, temperature and humidity, among various environmental conditions to which the parts are to be exposed. (2) Light Resistance Light resistance means the resistance of the synthetic resin parts against aging (1) when the ' parts are exposed to sunlight. (3) Exposure Test Apparatus Exposure test apparatus means a sample holding frame and other related devices used to ex pose test samples to outdoor environmental conditions. (4) Exposure Surface This means the external surface of each specimen which is directly exposed to sunlight, ozone, rain- and snowfall, and other environmental conditions. (5) Amount of Light Received. The amount of light recieved by the exposure surface of each specimen, the magnitude of which is expressed in langleys (g-m cal/cm1) (2). (6) Standard Specimens Standard parts, standard test pieces, standard scales for observation, and limit samples, which are used for periodic observation and for comparison with tested specimens, 'and which axe stored in a dry, cold and dark place kept under specified conditions. (7) Effective Surfaces Effective surfaces mean those surfaces of each part which are of practical importance, such as: (a) Surfaces that can be seen from any ordinary directions when the part is placed m service. * (b) Surfaces whose property changes can affect the functions of the part. (8) Discoloration Color fading (changes in saturation and lightness) due to degradation of colorants, such as trices and pigments; color changes (changes in color hue, e.g., yellowing and turning dark brown) due to deterioration of components other than the colorants; and combinations thereof. (9) Glossiness Glossiness range is divided into the following types depending on'the specular glossiness meas- ured at an incident angle of 6Q? no gloss: Less than 20 Units Semigloss: 20 80 Units Gloss: More than 80 Units (10) Crazing Fine cracks developed on the surface of parts due to oxidation. (11) Chalking Chalk-like appearance of the surface caused by deterioration. (12) Peeling Peeling of, or blistering at, bonded sections or surface coating. (13) Cracking Cracks caused by exposure to natural environment or by internal stresses. Not* 1: Deterioration which progresses with passage of time. Note 2: 3, m W min/cm! 1 69.7 g cal/cm; 3. CLASSIFICATION OF TEST METHODS The test methods are of the four types s'hown in Table 1, and either one of the four shall be applied to each part. CHARDO 01896 M 0735 1983 Table! Types of Test Methods Division -j-- Classification Outdoor Exposure Tests, (Natural exposure tests) Outdoor Weatherability Test Outdoor Light Resistance Test Accelerated Tests, (Accelerated exposure tests) Accelerated Weatherability Test Accelerated Light Resistance Test ' ' 1 Purpose 1 '' To checic long-period weatherability of exterior pans throueh outdoor exposure to atomospheric air. To check long-period light resistance or interior parts through outdoor exposure to atmospheric air under a condition free from the effect of rainfail. To measure weatherability of exterior pans by using a weatherometer in order to estimate their true be havior outdoors. To measure light resistance of interior parts by using a weatherometer or fadeometer in order to esrimate their true behavior outdoors. 4. CONDITION FOR USE AND EXAMPLES OF APPLICABLE PARTS 4,1 Conditions for use Conditions for use of the synthetic resin parts shall be classified into two main types as shown in Table 2 depending on their using site and exposure condition. Table 2 Conditions for use Exterior EC Interior tc 4.2 Examples of Applicable Parts Table 3 lists examples of parts which should be assigned to respective groups classified by service con dition (Table 2) and degree of weatherability (light resistance) required for individual parts. Table 3 Examples of Applicable Pans Condition Degree of Weatherability (Light | for use Using Site ] Resistance) Required for Pins Symbol ! Parts that receive considerable < ; EC 1 amount of sunlight I Examples of applied Pans Wheel cap Exterior 1 Parts that receive much sunlight EC 3 Ornament, radiator grille, rear grille, emblem, cowltop grille, hood louver, bumper, washer nozzle, antenna cap, wiper pivot cover, outside mirror Pans that receive little sunlight l i J IC 1 Dashboard-side finisher, head lining, kicking plate, instrument panel undercover, roof-side garnish, floor mat Interior Pans that receive considerable amount of sunligct .; : ! Inside mirror, glove box lid, console box, shift knob, center pillar trimming ilower), RR wheel tc: ; ' house, door (general), armrest, sunvisor, luggage j side, luggage floor, roof side, sun-roof head lining Parts subject to constant exposure to sunlight and kept at elevated tempera cures ' j I 1 !C 3 Instrument panel or pad, upper garnish, cluster lid A, defroster grill, column cover, stearing wheel, rear parcel, door (upper), rear corner, W/S pillar garnish, center pillar upper, seat (upper) Remarks: Parts not, listed in Table 3 shall be assigned to a proper group through agreement between the parties concerned, with consideration given to using site, automobile destination and other factors. CHARDO 01897 M 0135 1983 5. SAMPUNG OF TEST SPECIMENS Type of test specimens to be used shall be as specified below depending on the poperties required for each part subjected to the exposure test defined in Paragraph 3. 5.1 Appearance, Dimensions, Shape, Electrical Properties, Parti Functions and Chemical Properties (1) Wherever possible, the part shall be tested in the complete form ready for use. (2)....The part may be cut to a proper size as close to the original shape as poossible, or specimens as ......specified in. the Figure below may be used,, when such modifications offer no problem because of the material type of the particular part, or when the accelerated test so requires. Testing of chemical properties shall comply with NES M 0133 (Chemical Resistance Test Methods for Synthetic Resin Parts). Figure Specimen Unit: mm fC. i 150 5.2 Mechanical Properties A proper type of specimen shall be selected as specified in Table 4 depending on the types of resin and test method. Testing of mechanical properties shall comply with NES M 0141 (Test Method for Synthetic Resin Coating). Table 4 Specimen (Mechanical Properties) Type of Rests Fiber-reinforced Resins Engineering Plastics General-purpose Resins Foamed Plastics Rubber Type of Test Method Tensile Strength Shape and Dimensions (mm) Dimensions of specimen shall be as specified in the table below. Type of Specimen Type of Resin Symbols Dimensions t Thickness C Total width No. 2 Fiber-rem. f.orced,11 Engineer_ing Plas- ,,Res.ms tics ami G,,ene,ral- j purpose Resins No. 3 Foamed Plastics No, 4 Rubber 2j 3 19 10 1 IS *> w Width of parallel ponton 12.5 10 5 OO : l i Wc Width of central portion 10 5 F Length of parallel portion S7 40 20 G Gage distance D Grip distance L Total length Radius of fillet inside shoulder 30 !U 216 76 20 90 t 20 25 70 1 10 R. Radius of fillet ! CHARDO 01898 Type of Resin Table 4 (Corn'd) Type of Test Method Shape-and Dimensions (mm) 1983 Fiber-reinforced Resins Engineering Plastics General-purpose Resins Foamed Plastics Bending Strength Bending Stress 25 0.5 Specimen height (h) shall be as specified in the cable below Type of Resin h FRP 2 ABS PP 3 Polyurethane Fiber-reinforced Resins Engineering Plastics General-purpose Resins Foamed Plastics Dynstat Impact Strength Specimen thickness it) shall be as specified in the table below Type of Resin t FRP 1 ABS 3 CHARDO 01899 1933 Type of Resin Foamed Plastics Table 4 (Cont'd) Type of Test Method Shape and Dimensions (mm) Pressurized Hardness Test tSf"3 Impact Resilience Test > 300 SO Rubber CHARDO 01900 M 0135 1983 6. NUMBER OF TEST SPECIMENS Three pieces of test specimens shall be used for each type of test wherever possible. 7. TEST METHODS 7.1 Outdoor Exposure Test Method (1) Conditions of Testing Site The testing site at which the exposure test apparatus is set shall be an airy place with favorable atmospheric conditions suited for measurement of weatherability of the test samples, arid shall have no nearby obstructions or installations that may adversely affect the intended exposure test. (2) Exposure Period The exposure period shall be as specified in Table 5.3 Table 5 Exposure Period Unit: Month Outdoor wetherability, Outdoor Light Resistance \ Items of \Assessmeht Symbol EC I Appearance 12 Resin Properties 12 EC 3 24 24 IC 1 12 12 IC2 12 12 . IC 3 12 12 (3) Servicing of Test Samples Each sample under the outdoor exposure test shall be correctly and adequately serviced throughout the test period so as not to defeat the intended purpose of the test; all the samples should be cleaned off dust once every month in a manner not to damage the exposed surfaces and washed with clean water. 7.1.1 (1) Outdoor Weatherability Test Method Exposure Test Apparatus The test apparatus shall be of a sturdy, durable structure suited for outdoor exposure, and shall be equipped with a sample fixing means appropriate to the type, shape and dimensions of sample and to the intended purpose of the test. The stand of the test apparatus shall be firmly and properly fixed to the ground or the floor in a manner not to be affected in any way by rainstorms and snowfall, and each member of the test apparatus and metal fittings attached shall be suitably treated against corrosion. Remark 1: The exposure test apparatus should be provided with an integrating illuminometer to measure the amount of light received: (1) The light receiving surface of the illuminotneter must be set at the same angle as the exposure sur face, and must be covered with a UV-perrr.eatbie globe. (2) When the illuminometer is operated on a continuous basis, the globe and receiver filter should be cleaned off dust once every day. Remark 2: Porcelein insulators or plastic pins should generaliv oe used to set each test sample on the apparatus. (2) Method of Exposure The exposure surface shall face to the due south, shall be inclined to the horizontal at an angle of the latitude of the testing site minus 5, and should be set at least 50cm above the reference CHARDO 01901 1983 plane (ground or floor surface) on which the apparatus stand is installed. In summer from .April through September, however, the inclination angle shall be 'the latitude minus 20. Normally test samples should be directly set to the apparatus without using any back plate. However, a suitable back plate may be used to ensure firm setting depending on the shape and nature of the part. Each sample shall be set sufficiently, loose to allow for possible deformation during the test period. Extra care shall be used not to give any adverse effect to each sample when mounting ...........or dismounting it. ...... ............. .. .... -......... ........................... ----------------- ...... 7.1.2 Outdoor Light Resistance Test Method (1) Exposure Test Apparatus .... The test apparatus shall consist of a stand similar to that specified in 7.111(1) above, oh which is fixed a closed test box paned with a glass panel to protect the samples from rain and snow fall and to permit spontaneous temperature rise inside. The distance between the glass panel C 3mm polished glass plate as defined in JIS R 3202" 1981 (Float Plate glass and Polished Glass Plate)} and the top surface of the samples shall be at least 5cm. Hsmarks: Keep the surface of the glass panel always clean free from dust and other foreign substances. (2) Method of Exposure The method of exposure shall comply with the description given ir. 7.1.1 (2) above. When a specimen is used for. the test, however, a suitable space shall be allowed above the stand of the test apparatus. .. Example of Outdoor Light Resistance Test Apparatus 7,2 Accelerated Test Method (1) Conditions of Testing Site The conditions of the tesring sire should be of Class-3 standard temperature condition (20 5 C) specified iii JIS Z S703---1975 (Standard Condition of Testing Site). CHARDO 01902 tvl u t 1983 (2) Test Conditions Test conditions shall:be as specified in Table 6. Use of a sunshine weatherometer is preferable, but a UV carbon- 'weatherometer (or a UV carbon fadeometet) may be used through, consulta tion between the parties concerned after confirming the correlation between the two types of testing equipment. Table 6 Test Conditions Test Method ^Type of Testing Equipment Weatherability and Light Resistance Sunshine Weatherometer (Test Time: hour) Evaluation Item t "symbol ^ Appearance Resin Properties Black Panel Temperature (3SC4) Spray EC 1 EC 3 - ic i IC2 1C 3 600 .200 (3000 for bumper only) 100 200 300 600 600 1000 63 3 or S3 3 83 3 Yes No . Not*: The test times for EC conditions given in the above table are for the black panel temperature of 63 3 C; the test times for the black panel temperature of S3 3C shall be determined through consulta tion between the parties concerned. (3) Fixing of Test Samples Each test sample shall be fixed with its external surface taken as the exposure surface (for other details, refer to Tables 7 and 8). (4) Servicing of Test Samples Each sample under the accelerated test shall be correctly and adequately serviced throughout the test period so as not to defeat the intended purpose of the test, 7,2.1 Accelerated Weatherability Test Method The accelerated weatherability test shall be conducted as specified in Table 7 according to the type of test equipment used. CHARDO 01903 M 0735 1983 Table 7 Accelerated Weatherability Test Equipment Type of Test Test Cond^~~~^^guipment tions Sunshine Carbon Weatherometer ITV Carbon Weatherometer Configuration of Test Equipmeni Refer to Reference Drawing 1 | Refer to Reference Drawings 2 and 3 Type of Arc Lamp Number of Lamps Open I j Open Closed 2 Carbon Elect Upper (mm) Copper-covered sunshine carbon o23 x 305 Cored or cureless carbon o!3 x 305 rodes Lowerfmm) Copper-covered sunshine carbon o 13 x 305 Cored or coreless carbon o 13 x 100 Average Discharge Voltage (V) 50 ( 2%) 135 (t 2%) Average Discharge Current (A) 60 (* 2%) 16 (e 2%) Filter Panel filter Transmittance: 0% below 255nm 90% and over at 400nm Globe filter Transmittance: 0% below 279nm 90% and over at 400nm Control Temperature 63 = 3 or S3 * 3 Black Panel Thermometer CQ Dimensions Specifications Refer to Reference Drawing 4(1) Refer to Reference Drawing 4 (2) A bimetallic dial thermometer (I" C-graduation; heat sensor: 35mm in diameter) with its heat sensor directly fixed to a 1 mm x 150mm x 170mm stainless steel plate (5US27) and the total coated with lightfast black enamel. Two pieces of thermo meters shall be provided: one for measurement in the test and the other as standard for calibration. For calibration, align the two pieces in parallel against a light source and take readings. The difference between the two readings shall be within : 2s C. Sample Rotat ing Drum or Frame Sam pie*Arc Center Dist* ance (mm) Diameter (mm) Rotating Speed (rpm) min*1 ' 476 - 482 (Sample rotating frame) 960 Approx. 1 378 - 384 -- Positional Relationship of .Arc Lamp, Sample Rotating Drum tor Frame) and Spray Nozzles Refer to Reference Drawing 5(1) Refer to Reference Drawing 5(2) Nozzle Dimensions Refer to Attached Drawing Fresh Water Spray Condi* tions Pressure (Kgf/ cm2) Flow, Rate (mi/ min) Spray Time * ' 0.8 - 1.3 [78 - 127 kPaf 2100 s 100 18 minutes during 120-minute irradiation Water Quality Deionized water of pH 6.0 - 8.0 with a preferable resistivity of 10* ncm or more Special Requirement inside the Tester Closed, air-circuiating type tester shall have suitable devices to eliminate the adverse effects of excessive heat and ozone and other harmful gases produced during dis charge. Luminous Intensity Examination Attach luminous intensity test paper on the sample holder and sample rotating dram Method of Examination (or frame), and run the tester for 20 hours under specified conditions with the fresh water spray stopped. At the end of test operation, take out the test paper, allow to stand at room temperature for at least two hours in a cold, dry place, and measure the luminous reflectance Y using a differential colorimeter. This examination should be made once every 2000 hours or SO. Attachment of Luminous Intensity Test Refer to Reference Drawing 6( 1) j Refer to Reference Drawing 6t 21 Paper i Allowable Range of Y (%) 23.2 ~ 24.3 (Lot No. 700a) 22.S ~ 23.9 (Lot No. 700a) Fixing of Test Samples 1. All test samples shall be set out of contact with one another. Any test sample that can contaminate others shall be tested alone. 2. Each test sample should be transferred from iower tc upper, or from upper to lower, positions once every 20 hours or so. Note: The black pane! thermometer control temperature of 83 ; 3"C mav.be aocpted through Consultation between the parties concerned. CHARDO 01904 M 0135 1983 7,2.2 Accelerated Light Resistance Test Method The accelerated light resistance test shall be conducted as specified in Table 8 according to the type of test equipment used. Table 3 Accelerated Light Resistance Test Equipment Test Conditions Type of Test Equipment Sunshine Carbon Weatherometer UV Carbon , Weatherometer i UV Carbon | Fadeometer Configuration of Test Equipment Type of Arc Lamp Number of Lamps Carbon Electrodes Upper (mm) i Lower (mm) Average Discharge Voltage (V) Average Discharge Current (A) Filter Black Fane) Thermometer Control Temperature *C Dimensions Sample Rotating Frame Specifications Sample-Arc Center Distance (mm) Diameter (mm) Operation Rotating Speed Positional Relationship of Arc Lamp and Sample Rotating Frame Special Requirement inside the Tester Method of Examination Examination Attachment of Luminous Intensity Test Paper Allowable Ranae of Y IS) Fixing of Test Samples Rei'et to Reference Drawing 1 Open 1 Copper-covered sunshine carbon 023X305 Copper-coveted sunshine carbon 013X305 50 <* 2%) 60 (t2%) Panel filter f 05& below 255 nm TQnS" -j 90% and over mm"Cejat400nm Refer to Reference Drawing 7 Refer to Reference Drawing 8 Open Closed [ Closed 2; One of the two lamps suspended at the center, with the other dis mounted. i Cored or comless carbon 013x305 Coted or coreieas carbon 013X305 Cored or coteless carbon 013x100 Cored or corettsi carbon 013X100 135 (#2SW 135 (a2W 16 (a 2%) 16 (i2S'< Globe filter _ fOTo beiow 279nm TrfS` 190% and over "^Woonm Globe filter Trim beiow T ! 27Sum mman*, TO* and OVCl L 400ihl 83i3 Refer to Reference Drawing 4(1) I Refer to Reference ] Drawing 4 (3) Same as those in Table 7 Refer to Reference Drawing 4 (3) 476-482 251- 257 251-257 960 j 508 508 Stop the spray and drum cooictg water, remove the spray unit, dismount one of the two lamps (UV carbon weatnerometer) and install the sample rotating frame. Approx. 1 pm ;tnin-` J Approx. 3 rpm {min'1 J Refer to Reference Drawing 5(1) Refer to Reference 1 Drawing 9 (L) Refer to Reference Drawing 9 i2) Closed, air-circulating type tester shall have suitable devices to eliminate the adverse effects of ozone and other harmful gases produced during discharge. Tester shall be desiraied so tea: ah the test samples will be free from splash of water droplets. 1 The tester shad be of a | cylindrical shell structure. Attach luminous raiensirv tar paper on the sample holder and sample rotating drum, and nm the tester for 20 hours under specified conditions on a continuous basis. At the end of test operation, take out the test paper, allow to stand at room temperature for at least two hours, and measure the luminous reflectance Y by using a differential colorimeter. This examination should be conducted once every 2000 hours ot so, Refer to Reference Drawing 6 (1) Refer to Reference Drawing 6 t3) 23j;-:c^ (Lot Mo, 700a) ! 23.6-34,7 (Lot Mo. 700a) 1. All test samples shall be set out of contact with one another. Any test sample that can contaminate others shall be tested alone, 2. All samples should be transferred from upper to lower, ot from lower to upper. CHARDO 01905 M 0135 1983 8. EVALUATION METHOD Evaluation should be made before and after the test and at predetermined rimes danss the test. Evaluation may also be conducted as required during the test. 8.1 General Requirements (1) Prior to evaluation, each test sample shall be cleaned in a suitable way ths; does not defeat the intended purpose of the test, and shall be conditioned as required. (2) Appearance evaluation shall be-conducted with the effective surface through comparison with a standard sample. The effective surface shall be wiped off any foreign substances before evaluation. (3) The 'tandard sample shall have been stored in a darkroom or in a dosed container held under the Class-3 standard temperature condition (205C) and the Class-2 standard, humidity condition (655%) defined in JIS Z 8703-1976 (Standard Conditions of Testing Site). 8.2 Evaluation Items Evaluation items shall be as listed in Table 9. Appearance Properties TsbleS Evaluation Items Observation hems Discoloration, transmittance, glossiness, crazing, chalking, staining, peeling, cracking Dimensions, shape, curing, mechanical properties, chemical properties, electrical properties, parts functions 8.3 Appearance Appearance change before and after the test shall be checked visually at a distance of about 25cm with an illuminance of about 1000 bt on trie effective surface by using a standard light source C defined in JIS Z 8701-1971 (2-Degree 'view-field Color Specification Method by the XYZ System). 8.3.1 Discoloration (1) Visual Evaluaition For samples of achromatic colon, evaluation shall be made under the conditions specified in 8,3 above by using the gray scale denned in JIS L 0804-1977 (Gray Scale for Discoloration) through comparison of the color difference before and after the test with tne difference in color of gray scale color chips. ' Samples of chromatic color should normally be evaluated by using a measuring instrument. When instrumental evaluation is not feasible for some reason, visual comparison with standard samples may be used after agreement between the parties concerned. (2) Instrumental Evaluation a) For samples of chromatic color, measure by using a differential colorimeter under the conditions specified in 6.1 of JIS Z 3730*1970 (Method of Color Difference Specifica tion). Calculate color difference according to the following formula: dE(UVW)* [(JW)3 + (JU)= + (JV)11l/i b) For optical parts (e.g., lamp lens), measurement shall be made using a light source speci fied in JIS Z 8701 according to the procedure given in JIS Z 8722-1971 (2-Degree Viewfield Color Measurement) to determine chromaticity. 8.3.2 Transmittance Measure light transmittance (%) of sample before and after the test according to the procedure given in 4.5 cf JIS K 6717-1977 (Methacrylate Resin Molding Material), and calculate change in transmittance from the following formula: Rate of Change {%) - Jly^tn-uce_befpre Test) - (Transmittance after Test) x (Transmittance before Test) ; 8.3.3 Glossiness (1) Visual Evaluaition V. hen instrumental evaluation is difficult for some reason, change in glossiness shall be visually evaluated through comparison with standard samples after agreement by the parties concerned. (21 Instrumental Evaluation Measure the glossiness before and after the test according to the procedure given in JIS Z CHARDO 01906 ivl u l OO 1983 8741-1962 (Glossiness Measurement), and calculate glossiness retention from the following formula: _ 60 Specular Glossiness after Test Glossiness Retention 60 Specular Glossiness before Test X 100 (ffi) Remark: When a glossmeier is used, its angle indication shall read to 1*. 8,4 Resin Properties 8.4.1 Shape and Dimensions (1) Change in shape after the test should normally be checked visually. (2) Rate of change in dimensions should be determined by using a suitable instrument and the fol lowing calculation formula: (Dimensions after Test) -- (Dimensions before Test) ^ Rate of Change (%) (Dimensions before Test) ^ Remark: A positive rate of change means expansion, and a negative value means shrinkage. . 8.4.2 Curing Curing shall be evaluated according to the procedure given in 6.2.1 of NES M 0141 (Test Method for Synthetic Resin Coating). 8.4.3 Mechanical Properties Mechanical properties shall be evaluated according to the procedure, given in 6.2.2 ~ 6.2.8 of NES M 0140 (Test Method for Synthetic Resin Coating). 8.4.4 Chemical Properties *. Chemical properties shall be evaluated according to the procedure given in NES. M 0133 (Chemical Resistance Test Method for Synthetic Resin Parts). 3.4.5 Electrical Properties Evaluation of electrical properties shall be in Accordance with agreement between the parties concerned. 8.4.6 Parts Functions ' '' Put a load on the tested sample or operate it, and check if there is any change in condition or if it functions correctly. The loading and operating conditions shall be determined through consultation between the parties concerned. 9. CRITERION 9.1 Appearance Appearance, tested by the method of 7, and evaluated by the procedure of 8., shall be judged accord ing to Table 10. However, how to apply the rating (Class A and Class B) shall be determined by agree ment between the parties concerned for each type and property of part. Table. 10 Evaluation Standard for Appearance Rating Class A Observation Items' Cray Scale Discoloration Color Difference (for reference! Parts on which areas of similar color are adjacent and which are likely to develop marked color difference Class 4 or higher 2 or lower Crazing Chalking Staining Peeling Cracking No crazing at ah No chalking No noticeable stain None Transmittance Little change in - transmittance (li-T or less) Glossiness Little change; Gloss retention SOfSi or more for glossy products and S0% or more for semiglossy products .Class B . Pans with no such tendency but with relatively high priority on appearance Class 3 or higher 3 or lower No marked crazing No marked chalking No marfctd stain No peeling at ail No marked cracking No noticeable change in transmittance (20T: or less) No noticeable change; Gloss retention of 50fo or more for glossy products and 20% or more for semiglossy products CHARDO 01907 3SE2 9,2 Resin Properties Evaluation standard for resin properties shall be in accordance with the agreement between the parties concerned. 10, DRAWING DESCRIPTION Drawing description shall be as shown below. Example: "Testing shall be conducted according to IC , NES M 0135-1983, and the results shall meet Class . ' Sunshine carbon weatherometer irradiation:( ' "ihours: BP temperature: C; Spray: H " CHARDO 01908 Attached Drawing Nozzle Dimensions Spray Unit Nozzle M 0135 1983 Unit: mm r* e- Reference Drawing 1 Sunshine Carbon Weatherometer CHARDO 01909 M 013S 1983 Reference Drawing 2 UV Carbon Weatherometer (2-Lamp) (Open Type) Reference Drawing 3 UV Carbon Weatherometer t2-Lamp) (Closed, Air-circulating Type) Sample Holder Sample Switchboard (JV Carbon Arc Lamp Air Regulator Valve Heat and Gas Exhaust Unit J,, Spray Unit Sample Rotating Drum Cooling Nozzle Black Panel Thermometer .Sample Rotating Drum Glass Globe (J U CHARDO 01910 1283 Reference Drawing 4 Black Panel Thermometer i (1) For Sunshine Carbon (2) For UV Carbon (3) For UV Carbon Weatherometer Weatherometer.............. Weatherometer (Accelerated Weatherabiiity (Accelerated Weatherabiiity (1-Lamp) and UV Carbon and Light Resistance Test) Fadeometer (Accelerated Test) Light Resistance Test) Plate (Stainless steel, 8 Kate'(Stainless steel, .!* I-: Unit: mm /eMtu t Insulator Insulator Heat Sensor (Stainless Steel) Hr Insulator w Reference Drawing S Positional Relationship of Arc Lamp, Sample Rotating Drum (or Frame) and Spray Unit (1) For Sunshine Carbon Weatherometer (Accelerated Weatherabiiity and Light Resistance Test) (2) For UV Carbon Weatherometer (Accelerated Weatherabiiity Test) CHARDO 01911 IVI U I JO ' 1983 Reference Drawing 6 Luminous Intensity Test Paper Mounting Holder Unit: ram (1) for Sunshine Carbon Weatheromerer (2) For UV Carbon Weatherometer (3) For UV Carbon Westherometer (Accelerated Weetherabiiity {Accelerated Weatherabllity (1*Lamp) and UV and Light Resistance Test) Test) Carbon Fideometer (Accelerated Light Resistance Test) Er===r3 Reference Drawing 7 UV Carbon Weatherometer (1-Lamp) (1) Open Type (2) Closed, Air-cireulating Type CHARDO 01912 Reference Drawing 8 UV Carbon Fadeometer 19 M 0135 1983 UV Carbon Arc Lamp Sample Rotating Frame Black Panel Thermometer . Sample Holder .Sample Glass Globe Reference Drawing S Positional Relationship of Arc Lamp and Sample Rotating Frame (For Accelerated Light Resistance Test) (1) UV Carbon Weatherometer (2) UV Carbon Fadeometer Unit: mm I L V Carbon Arc Lamp Sample Holder Sample Rotatma Frame H,oIr .Black Panel Thirmometer\ Sample Rocacuis Frame \ \ Black Panel Thermometer Sample . f" ED It 1P Sample Rotating Drum w "pi 'dHl-i "' tr1. CHARDO 01913