Document K63o6B84pe3j6nnENggdxQN8x

nIL.! 0nii.'COoi' jrLil?'tV/.v:' :i1^)1(iU..vJ 0 O TIMS DOCUMENT 15 SUI.JECT TO SPECIAL EXPORT CONTROLS AMD EACH TRANSMITTAL TO FOREIGN GOVERNMENTS OP. FOREIGN NATIONALS MAY CE MADE ONLY WITH PRIOR APPROVAL OF THE NAVAL SHIP SYSTEMS COMMAND MILITARY SPECIFICATION EMULATION MATERIALS, THERMAL, WITH SPECIAL CORROSION AMD CHLORIDE REQUIREMSITS Mn-I-24244(SHIPS) AM3IDMEIT-2 1 Hav 1969 SUPLRSEDDIul/ Asandaent-1 15 February 1963 This anendr.ont ferns a part of Military Specification MIL-I-24244(SHIPS), dated 22 August 1966. Page t # 1.2, type 33: Delete "1000F." and substitute "1200F." Page 2 # Delete types 12 and 13 in their entirety. # Add types 15 and 16 as follows: .- n Type 15 - Tape, asbestos (ML-T-4117) 15A - Class 1, grade AA/., type XX 15B - Class 1, grade AAA, type XXI Type 16 16a 16b 16C 16D 16E 16F 16c - Insulation, Blocks, Boards, Blankets, Felts, Sleeving (Pipe and Tube Covering), ar.d Pipe Fitting Covering, Thrmal ( Mineral Fiber, Industrial Type) (HH-I-55S) - Fora A, rigid, class 2 - Fora A, rigid, class 3 - Fora A, rigid, class 4 - Fora A, rigid, class 5 - Fora B, typo II, class 9 - Fom C, class 10 - Fern C, class 11." # 2.1, under "SPECIFICATIONS, - MILITARY", add: "KIL-T-4117 - Tape, Asbestos." Jt Under "SPECIFICATIONS, FEDERAL", delete "HH-I-563 and HH-I-564" and substitute: . "KH-I-55S - Insulation, Blocks, Boards, Flaskets, Felts, Sleeving (Fipe and Tube Covering), and Pipe Fitting Covering, lheru-0. (Mineral Fiber, Industrial Type)." Page 3 # 3.3.1, delete end substitute: "3.3.1 Analysis. The specific notarial supplied shall be analysed for the following leachable ior.s: (1) chlorida, (2) sodiua cr silicate (if necessary to neet the acceptance requirement of figure 1, both'sodiua and silicate should be analysed).' The "plot paint" of these analyses shall fall in the acceptable area of figure 1. The eeceptanca-ro'-ecticn curve cay be extrapolated, as necessary, to datemine the acceptability of "plot points" vhL$n fall outside tho area actually bounded by fig1-c 1. However, the ainir.ua allowable value of sodiua plus silicate shall be 50 ppa." 'CHAMP33 FF.CM PREVIOUS ISSN;. THF. OUTSTDE MARGINS OF THIS DCCUMNIT HAVE 3321 MARKED '#" TO INDICATE WHERE CHANGES (DELETIONS, AP'JirlrriS, ETC.) FROM TH2 PREVIOUS ISSUE HAVE REHI MADS. THIS HAS 3321 ZCl'.Z AS A CC:iVeilBICE C:iLY A`iD "IF. GOTE-CIX-li? assumes no LIA3ILITY WHATSOEVER FOR ANY 1:1ACCURACIES El THESE NOTATIONS. BIDDERS AML CONTRACTORS ARE CAVTICUED TO EVALUATE THE RSTJIREMSlTS OF THIS EOOUJSiT BASED Oil THE ENTIRE COHTSIT AS WHITTS; IRRESPEGFIVE Or THE MARGINAL NOTATIONS AMD F.ELATIGNSHIPrTC THE LAST FRE7I0US ISSUE. FSC 5640 / IC.L-I-2i24i(SHIP5) AK2fD>E::T-2 # 3.3*2, delots and substitute: _ ' "3_._3._2 rH. Leach water from the specific material supplied except for MIJ.-C-290S, Type IX (Type 5B of HTL-I-2424.tr cement, shall have a pH (Hydrogen ion concentration nsgclivo exponent) not greater than 11,2 at 25C. For KIL-C-290S, Type II (Type 33 of ML-I-24244) cement, tho pil shall not bo greator than 11,7 at 25C." Page 4 # 3.4.2(a), delete, and substitute: "(a) The production lot from which the sample was taken has mot all the requirensnts of tbo spec ification listed in 1.2 for tho specific type and subtypo. The sonplc from this lot shall bs analysed for pH, chlorides, sodiun end silicate in accordance with the chemistry nsthods per mitted by this specification," # 3.4.2(c), delete and substitute: "(c) The actual numerical rc3ults of all chemistry tests including analyses for both sodium and silicate content, and actual numerical results of tho preproduction corrosion tast shall have been submitted to the coaiinnd or agency concerned for information." tr Add now paragraph 3.5: "3.5 Mercury contaminati-a. During tho manufacturing process, tests end inspections, tho insulation shall not have come in direct contact with mercury or any of its compounds, nor with any mercury containing device employing a single boundary of containment." # 4.1, delete and substitute: "4.1 ResmonsiMllty for inspection". Unless otherwise specified in the contract or purchase order,* tha * supplier is responsible for tho performance of all inspection requirements as specified herein. Except ae otherwise specified in the contract or order, the supplier cay uso hi3 own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by tha Government.!/ The Government!/ reserves the right to perform any of the inspections set forth in tho specification where auch inspections are deemed necessary to assure supplies ar.d services conform to prcscribod requirements." Add the following footnote 1/ to the bottom of page 4: # Tha term "Government" in this instsnee denotes "Command or agency Concerned". 4.2.1, add a second sentence to this paragraph as follows: "However, for molded thermal pipe and block insulation which is produced by a continuous process, a lot shall consist of all pi re or block insulation produced ur.lcr the same conditions, from ingredients of the same kind, nature ar.d quality offered for delivery at one time." j 4.2.2, delete the first two sentences and replace with following: "A minimum of three samples shall be tsiren from each lot, as defined in this specification, for the quality conformance tests except as noted below: Whore the typo specification (sec 1.2) requires a greater number of samples for produet quality testing, the number of samples required by the type s; ceifieation should be used for the qual ity conformance tests. However, for molded thermal pipe and block insulation which is pro duced by a continuous process, sampling shell ba in accordance with table I." i Add tabic I after paragraph 4.2.2 a3 follows: "Table I - Sampling for tests Lot size in nieces 1/ Up to 63 64 to 160 Minimum number of quality conformance test snmoles 1 2 See footnote at end of table. Pego 2 of 4 pages THIS DOCUMENT IS SUBJECT TO SPECIAL EXPORT CONTROLS AND EACH TRANSMITTAL TO FOREIGN GOVER KMENTS OR FOREIGN NATIONALS MAY BE MADE ONLY WITH PRIOR APPROVAL OF THE NAVAL SHIP SYSTEMS COMMAND KU-I-24244(SHIPS) J.H21DHSIT-2 Table I - Sasplir.g for tests (cont'd) Lot size in pieces 1/ Minimum number of quality conformance teat aanpleo 161 to 400 401 to 1,000 1,001 to 2,500 2,501 to 6,300 6,301 to 16,000 Ovor 16,000 3 5 8 13 20 32 A piece la defined aa one segment, section or block." i 4.2,3 (d), delote and substitute: "(d) The actual results of chemical analyses and pH deterainations. Identification of the ehi-detry analysis procedures (methods) used." * Page 5 4.2.4.1.1 (c), delete first subparagraph and substitute: "(c) Specimens, approximately 20 gross dry basis, of liquid adhesives (or cements) shell be air dried for 24 hours into 2-lr.ch ainicun dianetcr disks in tired dishes (pans) made of metal, teflon, or polyethylene. Actual dry weight shall be determined after drying. If the disk is dry and hard, it shall bo pulverized/" # 4.2.4.1.2, delete first two sentences and substitute: "4.2.4.1.2 Water le-tchin.-. Place each specimen in an individual 300 milliliter (cl) Pyrcx barker "(or equal) and cover the specimen with 400 cl. of water. Cover the beaker with n watch glass and heat for'l/^tou: at 95C. to 100C., then rcsave heat. Cool the beaker and its cor.tenta naturally (do not egitatc) to a <rooii temperature of 20C. to 30C." 4.2.4.2.1, add the following sentence: "The pH shall be corrected to 25C." # 4.2.4.2.2, delete the first two sentences of this paragraph and substitute: "The cheuical analyses for the chloride, silicate end sodium ions shell be nsde by the cethods con tained in. this specification, or equal, os approved in writing by the command or agency concerned. Requests for approval of alternate chemistry procedures shall be accompanied by justification evidence of their accuracy, e.g., such as by measuring differences in test results when known * amounts of chlorides, silicates or sodium arc sided and comparing these differences with eorpar.iM.resultr- obtained when using the procedures contained in this specification on the same eamplea of insulation. The analyses shall be made on suitable aliquots from solution 4." Pages 5 and 6 # 4.2.4.2.2.1, delete and substitute: "4.2.4.2.2.1 Anelysl3 for chloride. An aliquot of solution A shall ba analyzed by either of the follow ing methods: (a) Amoerometrie-c vjlaretrl-. t-1 tret--"-__nothod. Ar. ac.peror.stric-ceulouctric titrator method auch as the Aninco-Cot]eve Automatic CSilorido Titrator method (or equal). (b) ` Colorimetric r.ethod: (1) Optical der.3ity shall be r.cas'ircd on a prepared solution against a water reference solntlc: in 5 centimeter (cn) cells by a Beckman Model "B" spectroehoteciater (or equal) at 470 millimicron (mu) and the chloride content read from a calibration curve made free aliquot: of a standard chloride solution representing 20, 40, 60, 0 end 100 rdcrogran3 cf chloridion. Both e svple bins!: and e reagent blank shall be used and the reading obtained or. soluticr. A shill be corrected by subtracting the sum of the blank readings. ** - Page 3 of 4 pages THIS DOCUMENT !S SUBJECT TO SPECIAL EXHORT CONTROLS AND EACH TRANSMITTAL TO FOREIGN GOVERNMENTS OR' FOREIGN NATIONALS MAY EE MADE ONLY WITH. PRIOR APPROVAL OF THE NAVAL SHIP SYSTEMS COMMAND K>I-S42U(SI1XP3) AKSIKSiT-S ' Pages 5 and 6 (cant'd) Kote: Sulphate and phosphate cause positive interference at concentrations exceeding 0.2 weight percent. (Z) Add in turn to a 50 ml volunatric flao'c: an aliquot of eolution A which contair.B a 20-60 tticrogres3 of chloride ion (adjusted to pK 6 to 8 with 6N fGIO-j using indicating paper), 2 ml each of reagents (a) and (b), and water to 50 ul, tiring thoroughly at each addition. Read 15 ninutes efter preparation, nixing the solutions thoroughly just prior to reading. (3) Reagents. Reagents shall be of suitable analytical grade. Reagent solutions shall have the following compositions (a) (b) * (c) 99.7 grans of Fe2(S04)3 . (tiH4)2S04 . 24H20 per liter dissolved in 6:t nitric acid. Store in a brown bottle for at least 24 hours before use. (Stable for several months). 7.5 grams of' Kg(SCH)2 dissolved in methyl alcohol to a final volume of 500 el. after mixing at least 1 hour with a stirrer and filtering through`Whatman Ho. 41 paper (or equal). Water shall be distilled water containing less than 0.1 parts per Billion (ppti) of chloride ion. Koto: For reference, see method C of ASTM D 512." Under "5. PHSPASATICH FOR DSLIVESY", add: Page 9 "(For tho extent of applicability of the preparation for delivery requirements of referenced docu ments listed in section 2, see 6.4)." Page 10 Add new paragraph 6.4: . "6.4 Sub-contracted material and parts. The preparation for delivery requirements of referenced docu ments listed in section 2 do r.ot apply when material and parts are procured by the supplier for incorporation into the equipment and lose their separate identity when the equipment is shipped." Preparing activity: Havy - SH (Project 5640-S007) Page 4 of 4 pages THIS DOCUMENT IS SUBJECT TO SPECIAL EXPORT CONTROLS AND EACH TRANSMITTAL TO FOREIGN GOVERNMENTS OR FOREIGN NATIONALS MAY BE MADE ONLY WITH PRIOR APPROVAL OF THE NAVAL SHIP SYSTEMS COMMAND