Document J341oYzKGJreGkYEjV0noLjr

FILE NAME DuPont DUP DATE 1972 Aug DOC DUP103 DOCUMENT DESCRIPTION Industry Warning Information - Measurement and Control of Asbestos Dust Exposure TECHNI AL PONT DU OF THE COMPANY PERMISON AND THE 8/1/12 NEMOURS WITHOUT WITHOUT DE IUNTAIVE DPOUNTREPODUC DU E. NON # OF USED TOXICITY 40,056 40,056 | SAFETY , MEASUREMENT MEASUREMENT MEASUREMENT AND AND AND OF ASBESTOS DUST DUST CCOONNTTRCROONTLOROLL CCOONTRONL CTORNCOTNOTROLRLOL EXPOSURE EXPOSURE H ISSUED ENGINEERING STANDARD . | S4T THEY P Mo vItnD ; f a Page : oe e e : 1 of 5 = Se 5 rofurances mee = ome eee ween. os Any portion of this or rofurances mee me me Be ee. eee eet ee <- mandatory rofurances escument printzo printzo in red is a trquirement trquirement of the Federal Register Williams Occupationsi | Scfety eng r sith fect of 1970 OSHA es published in the _- ee 1. SCOPE This standard presents the permissible exposure limits to asbestca dust ceneral information on meth of controlling ashestos dust exposures and deseril es an oe 24 Control mathods such es but not limited to enclo- eee ' sure varuum sweeping and local exhaust ventilation Ene s'inil he word to meet the permissible exposure limits ete 502 Bariton 3 mE MP acceptable method of sampling bestos dust concentra- tions in the work area 2 GENERAL 25 Respiratory protective devices shall be eecmt provided and used where such control methods are not me feasible ; or do not otherwise reduce the concentrations below the 1 J] permissible exposure limitbese section 4 21 Asbestosis and lung cancer have long been associater with exposure to asbestos Historically the incidence of these discases has been significantly higher among _ ashemios workers than among the general population . | 22 Te -- -- sirborne me cee * Principal sources of exposure to sirborne asbestos dust in Company operations have been 26 Hygiene requirements are included in section 5 27 Sampling For sampling equipment monitoring analysis record keeping and warning signs see sertion 6 28 Nonasbestos bearing materials should be suhsti- a shops Cutting insulation by power saws in fabrication ; tuted where asbestos contributes to a dust concentration |, exceeding the permissible exposure limits b Opening boxes and removal of new insulation c Removing old insulation from lines and vessels 3. CONTROL OF ASBESTOS DUSTS 3.1 Handling Asbestos Insulation BE Mixing asbestos to form cement 3.1.1 Cartons of block insulation are a potential |. PROETY NOT Removal of clothing after completing iosu uting }|; source of severe dust exposure and should be handled with care The rough abrasive nature of the block mate- rial creates dust within the cartons the MAY Cutting asbestos shingizs Transite etc. " 3.1.2 Cartons of new insulation should be vacu- is HERON umed upon opening and prior to removal of blocks Document g Spraying insulation or fireproofing to remove dust h Ingredient in Company products Document 23 Permissible Exposure Linsits Ashesros dirst concem n-s THIS INFORMAT weighted trations in air shail not exceed an kour average TWA of 5 fibers longer than 5 microns per zubic centimeter cr of uiz At no time may the concen- NOTE iration exceed a ceiling of 10 fibers longerthen 5 microns handled 3.1.3 Asbestos blocks must be at all times to minimize dusting with care 3.1.4 Purchase of block coating is recommended This free for handling purposes | insulation with a glaze makes it virtually dust 3.2 Aspeston Cutting Operations 2.3.1 The hour weighted is the average concentration occuring 8 continuous hours average TWA over a perion of : 2.3.2 After July 1 1976 the TW'A is redured from i i 5 to 2 filers longer than 5 niicrons per cc | 3.2.1 Ail operated or ngerated tooisi whien may produce or release asbestos fibers in excess of the perinissinie exposure limits shall be provided with a dues collection systems systems 3.6 3.2.2 All major cutting machines should be isolated in a separate working area Portions printed in red mest OSHA regulations Section 1910.93 somme"swe Vendors and merchannise designations ora given to describe materials and not include ali occeptable products products Substitutions by suppliers are may to be mode only on approval of the local authority initiating the use of this standard SUBCOMMITTEE NO 78 tr T MEASUREMENT AND CONTROL OF ASBESTOS DUST EXPOSURE Yellow letters on black background - Block letters on yellow background Letter sizes and styles to be at least as visible as that listed below 1 Sons Serif Gothic or Block Sans Serif Gothic or Block 1/4 Gothic Specing to be at least equal to the height of the upper of any two lines A - " | , \- 1'- 1'- 13 faaoarh abel fees wer ee ey See, * s mee Oe em ee bere ai bedetenee se ced ASBESTOS DUST HAZARD 1 29" mfiAvold breathing dust Wear assigned protective equipment Do not remain in area unless your work requires it Breathing asbestos dust may L be hezardous to your health FIGURE 1 - CAUTION SIGN - ASBESTOS DUST CAUTION Contains esbestos ilbers Avoid creating dust Breathing asbestos dust may couse serious bodily herm Label size and printing to be readily visible and legible FIGURE 2 TYPICAL CAUTION LABEL , [ Figures and 2 moet CSHA requirements Section 1910.93 + 1910.93 aT oT