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FILE NAME Manville JMA DATE 1977 DOC JMA523 DOCUMENT DESCRIPTION Recommended Work Practices Booklet from A Pipe Producers Association i AMERICAN ra [re7i. AMERICAN AMERICAN ACOIATON ACOIATON ACOIATON e Tee a pe spect ye ne dhe sree MT004926 RT ti mentee em | A A i ee en ee I Pate coeayae ares . . 1 * ro. . } WORKS . 1 oa - OS ee ter AG A Pipe Producers Association 1600 Wilson Boulevard Suite 1308 Arlington Virginia 22209 | M10957 1 Montreal ' Canadian Johns i io: Corparilan JohnsManville Sales Denver Colorado ' Mexalt del Norte S A. i i} i Mexico City Mexico ry ASSOCIATE MEMBERS Amiantus Dienst Export Hamburg Germany Asbestos Monterrey S.A. Mexico City Mexico Association de l'industrie Nyon SwitzerlandSwitzerland Eternit B.V. Amsterdam Holland Ie, Ciment France Company Pty Ltd. South Wales WaWleas les Australia Athens PIVUCT ALU Fest : |. 2 Recommended Work Practices and Handling Assert [f) Shipping Receiving Handling and : of : Cutting AC Pipe Fuuppiedi Carbide Biche Fuuppiedi sr cigs Snap Cutting Equipment citer ete Equipment a Machining Machining C Pipe Manual Machining Lathe Field be ccene Field Power coe c ees creer Manual ' . Cutting PiPippee i Holes C ee veces eee |. * Drill and Rasp loco ee eee ae at Chisel and Rasp ose. eee Tapping C Pipe Pressure cee ceri recs ne Pressure Housekeeping | . CouplingRemoval i and Waste Waste Disposal Cl eede Recommended Non a Cutting Recomended Work Practice i : i : Abrasive Disc ice oe et mee nent warn : . si MT004928 Disc ; ; ; . Abrasive ae 4 The Occupational Safety and Health Act in the United wet . States and similar laws in Canada and other countries were ' }(7). enacted to ensure so far as possible every worker : |. Jo4 !. healthy work place This legislation is reaching It cov- +: ; 1: ersmillions of employees and nearly every employer in- 2. | | 5 ' - cluding those involved in utility duct and pipeline construc te a tion ; 3 keping & 4 a pe asbestos In keeping with the spirit and intent of these laws the i, i asbestos pipe industry is cooperating with labor ky - : disseminating Information regarding the potential hazards -. wo of exposure to airborne asbestos and the means of reducing Soy, - such potential hazards through good work practices an ne , . Good work practices is what this booklet is about The -'. recommendations that appear on the following pages are ~ the result of field testing and were developed through study They are intended as general guides to achieve safe | and clean job site conditions when working with asbestos- + _ , cement A pipe products Since field conditions will : vary adherence to these work practices will not necessarily -. guarantee compliance with national state or local regulations Questions relating to compliance should be directed to appropriate regulatory agencies The A Pipe Producers Association believes this booklet | will be helpful to engineers superintendents contractors -: vas foremen and laying crews in understanding and explaining =, established procedures for the safe handling of A pipe Power driven saws with abrasive discs mase blades Abrasive produce beveling of borne ay aslseste pou en es : - not be used for dry cutting or asbestos cement cement pip wh, ot seog theta! in Moab, beet disc cullers concentrations a NOT WOR y eres nae oe toss " dust which exceed OSHA permissible level THIS REC : we A i eget otah : PRACTICE IS THEREFOre specificALLY NOT REC Ms pot rn dg | ae nares | MENDED Cy + eo F12211 ; ; . t : A Pipe Products All : i . ay! Beg . "| Size Range All Cobble aa: . at ye. : Housekeeping and Waste Disposal ae rae Asbestos al al Healt H is iden Housekeeping an important part of any construction +! As you are aware airborne asbestos fiber has been It is even more essential when airborne dust tified as a possible health hazard Very few things to whit operation created by the lack of good housekeeping has the potential we are exposed are zero risks But like te te aut mobil : to~...u for harm to employees or others Ho electricity and rays there are harted ways . potentially harmful things EQUIPMENT All external surfaces equipment should =| : Ld, wt Ay j be maintained free of dust accumulations that might if ' Generally asbestos A pipe products products contai ,, dispersed create asbestos fiber concentrations above per- - a less than 20 asbestos The asbestos fibe are not ince b ne avisible exposure exposure limits , ae encapsulated or locked the cement tider tider kke rei 4 nemby WAY LE DISPOSAL Asbestos chips and cut- * forcing rods in concrete The distinction | tweca frec re tings from the field operations described in this booklet _ and bound asbestos is extremely importet First all ~ be importet should disposed of in a manner that will not contribute + determines the probability of fiber releas releas >. which in tur cutting airborne asbestos dust to the atmosphere Where | i f directly relates to the probability of risk Me importantk :| explains and machining operations are performed at the construc- tion site the chips should be placed in the trench and buried with the pipeline e Where operations are performed at a central location e or ee such as a contractor's or distributor's yard on more less continuing basis the chips and cuttings may be collected . - and mixed wet with cement made into friable ee it clearly and simply why Aipe Aipe Aipe a noi harmful use of asbestos Et Experience has shown that minimizin 1 posu tai borne asbestos dust the only effective m ing asbestos diseases Recomme tices are the best assurance of providir guards for yourself and your employees :. . forms These forms may be used in the trench as supports - te ! ; a ; wae for cast iron fittings and valves as appropriate oy 1 Otherwise chips and cuttings should be collected in | |; ted sealed bags or closed containers impermeable to asbestos dust Loose material should never be dry swept When vacuum equipment is available it should be used Water or other dust suppressants should be applied in those circum- = stances where sweeping is unavoidable DO NOT BLOW WASTE MATERIAL WITH COMPRESSED AIR 4 No visible emissions to the atmosphere may result from the collection processing packaging transporting or de- a position of any containing material Wastes at should be disposed site operated in accordance with the | requirements or applicable national state or local laws MT004930 ea nS cee me Cam re eS ape -e boo ! et ' y ne an Summary of OSHA } Asbestos Standard . The Occupational Safety and Health Act was signed into law on December 29 1970 and became effective on April 28 1971. On December 7 1971 the Secretary of Labor i sueda temporary standard for exposure to asbestos dust As required by the Act a permanent standard for asbestos es posure was promulgated six months later Under the current standard is the employer's responsibility to assure that exposure of employees to airborne concentrations of asbestos fibers does not exceed the fol- lowing permissible exposure levels a, Eight hour time weighted average Two fibera langer than 5 micrometers per cubic centimeter b Ceiling concentrations Ten fibers longer than 5 mi- crometers per cubic centimeter In October 1975 OSHA proposed a revision to the cur- rent standard which would reduce the eight hour time |:. weighted average exposure to 0.5 fibers per cubic centimeter of air and ceiling concentrations to 5.0 fibers per cubic centimeter In their notice OSHA stated that a separate construction industry standard would be issued to cover - workers who handle containing products This work practice booklet will be revised as necessary to reflect > any changes the construction industry standard may necessitate The work practices recommended in this booklet are based on data for peak dust concentrations representing short time periods ofmaximum exposure Field cutting and machining opera- tions involving A pipe are normally infrequent and of short duration Using these recommended work practices it is improba- ble that field personnel would be exposed in a typical working day to levels exceeding the eight hour time weighted average i : i t { : J... Page : 1 | ' : T Te arma aventc Gen rate ana I wee are Cnn eraneg Replacement of damaged pipe necessitates excav v^>n v^>nexp sure mbes and removal Coupling removal may be accomplished acomplished by gradu gradu coupling achis conams ally splitting the lengthwise landball peen ce - After been sp haminer the top of the coupling has 1. crow aret ; 5 a similar tool is used as lever to split the bottom of the coupling coupling A Pipe Products All pipe with C couplings Size Range All Lo toe mo Bo . 1 tt Fe : , F1212 M1004931 M1004931 M10493 / i .i . : Products and Operations Operations 1 4 i4 7 prakes Types of A Pipe Products covered by these work work prakes include mt rey Class Pressure Pipe Cet Transmission Pressure Pipe Lf t e- Pressure Sewer Pipe - op ts: | Gravity Sewer Pipe a ; if Building Sewer Pipe * .i. Storm Drain Pipe es get aed ! Perforated Underdrain Pipe : ' Electrical Conduit are: t Telephone Duct i Air Duct : Bo ce tLe ts Ee + Operations to which these work practices Siping Sipping Receiving and Handling " Cutting & . : : Machining ay Hole Cutting o . Tapping Coupling Removal ov Housekeeping and Waste Disposal Fressure or wet tapping for service connections is performed in the trench while the pipe is under pressure The equipment manual or power driven is affixed to the pipe by means of a chain yoke A combination boring and inserting bar drills and tops the pipe wall and inserts a corporation stop or pipe plug The . st . pressure chamber which protects against water leakage also \ . . i : 1 1 . j catches the asbestos chips so this is essentially a dust- \ . : tC wit free operation To minimize a the fouling of valves regulators meters etc. with chips and b unnecessary addition of asbestos to drinking , water provisions should be made for downstream flushing or suse of tapping equipment with positive purge or blow t : i t 1 , : L +f toy i : . features AC Pipe Products Pressure Pipe Size Range All Exposure data pot^imenllyavailable Recommendation Exposure Recommendation on exposure exposudratea fun operations believed to be comparable comparable 16 Shipping Receiving ' Handling and Assembly . MT004932 am ee ens Tapping Tapping Pressure Pressure A pipe is shipped clean from the factory and carefully loaded using methods acceptable to the carrier Loading unloading stringing out and assembling C pipe are essentially dust oO operations Even in enclosed spaces anborne asbertes fiber below existing existing levels from pipe handling operations are far | proposed occupational standards All hand and mechanical unloading operations should be car- , ried out in accordance with the manufacturer's installation man- | uals A Pipe Products All Size Range All pressure or dry tapping for service connecti va performed in above the trench The equipment sed pipe by means of a chain yoke Separate drills ar Cebination tool drills and tops the pipe wall Corpe or other connections may then be affixed to the pi To minimize a the fouling of valves regulators to with chips and b unnecessary addition of asbestos The -s water all dust and cuttings should be removed fra ang interior by flushing with water mopping or vacus placing in service DO NOT BLOW OUT WITH PRESED AIR OR DRY SWEEP A Pipe Products Pressure Pipe t ere centr eee a ner ae a Hole Cutting ' i Chisel and Rasp 7 z ee ee ee eae ee A la ES MT004933 me mek me ane mia rm : ee mn ae Ty ANco Clin : ' Carbide Blade Equi Holes may be cut into A pipe with a hammer and chisaerloTuhned edge of a plumber's wood chisel chisel is used to cut completely the hole outline about ...from the prescribed line The operation repeated and cut deepened until through The edges of the hole are then dressed withwith a coarse wond rasp accomplished When cutting holes in C pipe products all dust and cuttings should be removed from the pipe or duct interior after the cutting operation Removal may be accomplished by flushing with wa in service DO ter wet mopping or vacuuming prior prior to placing NOT BLOW OUT WITH COMPRESSED AIR OR DRY SWEEP C Pipe Products Pressure Gravity and Building Sewer Duct Size Range All Htnas cman mn ee Renmen memene et Blade cutters consist of frame adjustable to the circumferenc : a gen the pipe and a number of outboard tracking roler that 77 comes one or more carbide cutting blades Blad msiters esictthearsn are . typically operated Due to the relatively low i action significant amounts amounts of of airbe ny input and clean cutting ah airbe 4 asbestos dust are not produced vd fee . | C Pipe Products All Size Range 3 through 24 . a F122124 : F122124 F122124 | F122124 F122124 MT004934 a t ie ah . ry t oe . ' ee of Hole Cuting Cutting Drill and Rasp ma ane e pe ^'aAOS 5 wy eahtte AnsAy > i ' H andpop equipment operates Snap cutters or squeeze by means of cutting wheels mounted in a chain wrapped around the pipe barrel Hydraulic pressure applied by means of remote electric an manually operated pumpy simultaneously squeezes the cut- ting wheels into the pipe wall until the cut is made GE . A Pipe Products All Size Range Pressure Pipe through 24 . Pressure Gravity and Building Sewer Storm Drain Air Electrical and Telephone Duct through 36 dut Field connections may be made with a heavy c'ectric c'ectric dri'i spicen and rasp Using a carbide drill series spicen holes are first drilled around the hole outline The deis knowled free with a hammer and the edges of the hole dressed dressed with coasctoast wood shop . and cuttings cutings When cutting holes in C pipe products dust should be removed from the pipe or duct interior er hecuting hecuting+ operation Removal may be accomplished by flusif+o', rwviitche iv vater wet mopping or vacuuming prior to placing SWI NOT BLOW OUT WITH COMPRESSED AIR AKC Pipe Products Pressine Gravity and Buildi + Au Duct wel bee: Hole Cutting + Shell Cutters 8 Maching Maching Mua . Field Lathe Tope, a ct T Ser L a t IRsvar] an For field connections into A. pipe clean even entry cuts may Manual field lathes are designed to trim and r achin be accomplished by means of shell cutting equipment Shell rough pipe barrels to machined end profiles It b lath consist of a hole cutter housing mounted on the pipe o ? consists of an adjustable aligning arbor inserted + to th cutters carbide or diamond hole cutter and a manual ratchet ji pipe bore which acts as a mandrel upon which the amin pneumatic electric or gasoline drive to power the cutting head handle operates a screw turning frame carbide a thinin products When cutting holes C pipe all dust and cuttings blades and manual hand or ratchet turning handles we ' oot should be removed from the pipe or duct interior after the cutting x Removal be accomplished by Hushing with was C Pipe Products All mo, tba m operation may in service DO ter wet mopping or vacuuming prior to placing Size Range All : . . viet J NOT BLOW WITH COMPRESSED AIR OR DRY SWEEP OUT A Pipe Products Pressure Gravity and Building Sewer Air Duct F12 126 Size Range All 4 ; \ i ' en : an t ThA ~ Ad a MT04936 MT004936 A Rasp Manual | \ y . x >=, f we" \ 4d FLT i eee ow ay shety taed rey elder Power field lathes like manual lathes are designed to end trim and machine rough pipe barrels to machined end proiles The lathe consists of an adjustable aligning arbor in- a erted the pipe bore which acts as mandrel upon which the urning handle operates a screw turning frame carbide nachining blades and electric or pneumatic power drive : 6d VC Pipe Products All ize Range All 1 po } Short lengths of C pipe MEE's & MOA's can be cut for enga closures repairs and to locate fittings exactly Fiel tend y : be rebeveled with a coarse wood rasp to form tap repro repro repro ing the same profile as the beveled end ey ; nt, F122127 . A Pipe Products A^< : : t F122127 : Size Range All a F122127 | :