Document zd6w6D8Y920jOE61Ng8jeJE9m

FILE NAME: Raybestos-Manhattan (RBM) DATE: 1945 Nov 15 DOC#: RBM091 DOCUMENT DESCRIPTION: Report - Tentative Hygiene Standards on Maximum Allowable Concentrations Limits on Dusts with Cover Letter from IHFAto RBM 1'' I MR. 0. H.CILLEI: PLEASE READ AND RETURN WHEN I0U ARE FINISHED WITH SAME. S. S. Va i INDUSTRIAL. H YG IE N E FO U N D A TIO N O F AMERICA. INC. Mr. C. T. Yount:, factory Monomer, Manlsttnn Rubber Manufacturing D ir., Roybestos-iionhattan, In c., Passaic, N* J. Dear Mr. Young: In caso i t lias not already cono to your attention, >; ore enclosing a copy of the "Tentative Ifr/gicne end Sanitation Standards proscribing Mccdmua Allowable Concentrati on Lir.it s of Harmful Vapors* Gases, Runes, Mi3 ts, Dusts, e t c .,n recently pro posed by the Lev; Jersey Department of Labor. Ac a research organi*,ation, i t is not the Foundation's function to trice up positions on local natters but rather to find and to develop facts in industrial health for the guidance of it s Member Companies. Acco dingly, an analysis of the proposed code, from the technical standpoint, w ill be prodded upon request from I-B-F Mccibor Conpanien. Very truly your3, JI' irD end cc: Mr. S. Sinpson -- -- ''*A.a John F. Mdiab.cn Managing Director r. TENTATIVE HYGIENE AND SANITATION STANDARDS RULES AND REGULATIONS prescribing MAXIMUM ALLOWABLE CONCENTRATION LIMITS of HARMFUL VAPORS, GASES, FUMES, MISTS, DUSTS and RADIANT ENERGY for Places of Employment Hygiene and Sanitation Section Bureau of Engineering DIVISION OF ENGINEERING AND SAFETY Director: C. George Krueger, Deputy Commissioner of Labor Trenton 8, N.J. November 15, 1945 1 - Scope and Purpose 1.1 The allowable concentration limits of vapors, gases, fumes, mists, dusts, and radiant energy apply to all places of employment and shall not be exceeded. -1.2 The purpose of these rules and regulations is to prescribe the permissible concentration limits of vapors, gases, fumes, mists, dusts, and radiant energy in the atmosphere of places of employment for guidance in establishing control procedures for the protection of the health of workers. 2 - Definitions 2.1 Approved - approved by the Commissioner of Labor or any of his authorized representatives. 2.2 Dusts - solid particles generated by handling, crushing, grinding, rapid impact, detonation or decrepitation of organic or inorganic materials such as rock, ore, metal, coal, wood, grain. 2.3 Fumes - solid particles generated by condensation from the gaseous state generally after -volatilization from metals and often accompanied by a chemical reaction such as oxidation. 2.4 Gases - normally formless fluids which occupy the space of enclosure and which can be changed to the liquid or solid state only by the combined effect of increased pressure and decreased temperature. 2.5 Harmful - any mechanical or toxic action which in any way injures any p'.rt of the body or reduces the normal function of any part of the body in efficiency due to the effect of vapors, gases, fumes, mists, dusts, radiant energy or environ mental condition, arising from any industrial operatioh or process. 2.6 Mists - suspended liquid droplets generated by condensation from the gas eous state or by breaking up a liquid into a dispersed state, such as by splashing, foaming or atomizing. 2.7 Vapors - the gaseous form of substances which arc normally in the solid or liquid state and which can be changed to these states either by increasing the pres sure or by decreasing the temperature. 5 - Maximum Permissible Concentration Limits 3.1 The maximum allowable concentration limits of vapors, gases, fumes, mists, dusts, or radiant energy for an exposure not to exceed eight hours daily shall be as 3horn in the following table: GA8E3 - parts per million (by volume) at 25 C, and 760 mm pressure - p.p.m. SUBSTANCE P.P.M. Ammonia 100 Carbon Monoxide 100 Chlorine 1 Formaldehyde 10 Hydrogen Cyanide 20 Hydrogen Fluoride 3 Hydrogen Sulphide 20 Nitrogen Dioxide 10 Phosgene 1 Sulphur Dioxide 10 VAPORS - parts per million (by volume) at 25 C. and 760 mm pressure - p.p.ra. SUBSTANCE P.P.M SUBSTANCE p.p.M. Acrolein Acylonitrile Amyl Acetate Aniline Benzene Butyl Acetate Butyl Alcohol Carbon Disulfide Dichlorbenzene Dime thylani line' Ethyl Ether 1 Ethylene Dichloride 20 Hydrogen Chloride 400 Methyl Alcohol (Methanol) 5 Monochlorobenzene 100 Nitrobenzene 400 Phenyl Ethylene (Styrene) 200 Tetrachloroethane 20 Tetrochloroethylene 75 Trichloroethylene 5 Turpentine 400 Xylene Toluene 100 10 200 75 5 10 10 200 200 200 200 200 FUMES, DUSTS OR MISTS - milligrams per cubic meter at 25 C. and 760 mm pressure mg. per cu. m. SUFSTANCE MG. PEP. CU:M, SUBSTANCE MG. PEP, CU.M. Arsenic Arsenic Trioxide Ccdmium Chromic Acid, chromates Chlorodiphenyl 0.15 0.15 0.10 0.10 1.00 Lead Manganese Mercury Pentachloronapthalene Trichloronapnthalene Zinc Oxides 0.15 6.00 0.10 0.50 5.00 15.00 DUST - millions of particles per cubic feet at 25 C. and 760 mm pressure - M.P.P.C.F. SUBSTANCE M.P.P.C.F. Asbestos Mica Pottery Silicon dioxide-free over 40$ Silicon dioxide-free 20$ to 40$ Silicon dioxide-free 10$ to 20$ Talc Garnet silica silica silica RADIANT ENERGY - roentgens per day - r.p.d. RADIATION 5 15 10 5 10 15 15 15 R.P.D. X-Ray 0.1 Radium 0.1 4 - Sampling. Testinrr and Analysis 4.1 Sampling, testing and analysis of air to determine concentrations of vnpors, gases, fumes, mists, dusts, or radiant energy shall be performed by tech nically qualified end competent persons only. H - 3- 4.2 Sampling, testing and analytical procedure shall be in accordance with approved applicable and reliable methods. 4.3 The collection of the sample or testing of air shall be made in such a wr.v that the atmospheric conditions at the location of sampling or testing shell not be appreciably changed. 4.4 Except for radiation survey's, samples of air shall be taken at the breath ing level, close to the mouth or nose of the worker with special attention to location near the source of the contaminant and in the path of air currents carrying it toward the v/orkor if such conditions exist. 4.5 Samples shall be taken in sufficient number to reveal differences in con centration of the contaminant during the working period. 4.6 Samples of air shall be taken wherever there is a known or suspected source of, or exposure to any harmful vapor, gas, fume, mist or dust. 4.7 Radiation surveys shall be made wherever there is a known or suspected source of, or exposure to harmful radiant energy. 5 - Harmful Exposure 5.1 Any process, material or condition that either is known to be harmful or in which concentrations of harmful substances exceed the values specified in these rules and regulations shall neither be used nor permitted to be used in sny place of employment unless reasonably effective devices, morns or methods shall be pro vided to prevent the contraction of -any illness or disease incident to the work or process.