Document K6EJZX1vaZaz1wN99pvG7wnYr

U.S. DEPARTMENT OF LABOR OCCUPATIONAL SAFETY AND.HEALTH ADMINISTRATION CLEVELAND AREA OFFICE - REGION V 1240 EAST NINTH STREET, RM. 847 CLEVELAND, OHIO 44199__________________ December 17, 1971 1 Johns Manville Asbestos Products Red Seal Electric Company 3835 West 160 Street Cleveland, Ohio 44111 Dear Sir: The Occupational Safety and Health Administration, U. S. Department of Labor, has promulgated an emergency temporary standard for "Exposure to Asbestos Dust" in the Federal Register on December 7, 1971 under the provisions of the Williams-Steiger "Occupational Safety and Health Act of 1970." It is effective immediately. The emergency standard limits the eight-hour time weighted average air borne concentration of asbestos dust to which employees are exposed to no more than five fibers per milliliter greater than five microns in length. Concentrations above five fibers per milliliter but, not to exceed 10 fibers per milliliter, may be permitted up to a total of 15 minutes in an hour for up to five hours in an eight-hour day. Since your establishment may be involved with provisions of this stan dard I am enclosing a copy of it for your information. Federal inspec tions will be conducted of all companies processing and using asbestos and asbestos products in the near future. Sincerely yours KB/jsb Enclosure KENNETH BOWMAN Area Director ! Occupational Safety and Health Administration RS-10033 RULES AND REGULATIONS 23207' To bo a valid assay, the percent column requisite to providing for its certification Signed at Washington, D.C., this 2d ' recovery should bo 1002 percent. have been complied with and since not day of December 1971. (G) Identity. Proceed as directed in. 41.521 of tills chapter, using a 0.5 . cent potassium bromide disc prepared js described in paragraph (b) (1) of that section. (7) Crystallinity. Proceed as directed in 5 141.504(a) of this chapter. 150a:.ll Minocycline hydrochloride delaying in so providing is in the public interest, notice and public procedure anl delayed effective date are not prerequi sites to this promulgation. Effective date. This order shall be ef fective upon publication in the Federal Register (12-7-71). (See. 507, 69 Stat. 403. os amended; 21 CT.S.C. G. C. Guenther, Assistant Secretary of Labor. (FR Doc.71-17835 Filed 12-0-71:8:47 am] I _______ Chapter XVII--Occupational Safety and Health Administration, De partment of Labor capsules. 357) PART 1910--OCCUPATIONAL SAFETY (a) Requirements for certification-- (1) Standards of identity, strength, quality, and purity. Minocycline hydro chloride capsules are composed of mino Dated: November 21, 1971. H. E. Simmons, Director, Bureau'of Drugs. AND HEALTH STANDARDS Emergency Standard for Exposure to Asbestos Dust cycline liydrochloride and one or more suitable and harmless lubricants and dil uents enclosed in a gelatin capsule. Each capsule contains minocycline hydro chloride equivalent to 100 milligrams of minocycline. Its potency is satisfactory If it is not less than 90 percent and not more than 115 percent of the number of milligrams of minocycline that it is rep resented to contain. Its moisture content is not more than 12 percent. The mino cycline liydrochloride used conforms to the standards prescribed by 5 150g.l(a) (1). (2) Labeling. It shall be labeled in ac cordance with the requirements of 148.3 of tills chapter. (3) Requests for certification; sam ples. In addition to complying with the requirements of. 146.2 of this'chapter, each such request shall contain: (FR Doc.71-17773 Filed 12-0-71;8:4S amj JitlBj9=iUafla_ Chapter XIII--rBureau of Labor Standards, Department of Labor PART 1518---SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION Standard for Exposure to Asbestos Dost Pursuant to section 4(b) (2) of the Williams-Steiger Occupational Safety and Health Act of 1970 (84 Stat. 1592, 29 D.S.C. 653), 1518.55 of Title 29, Code of Federal Regulations, is hereby amended in the manner-indicated be low in order to prescribe a new stand Pursuant to section 6(c) of the Wil liams-Steiger Occupational Safety and Health Act of 1970 (84 Stat. 1596, 29 0.S.C. 655), Part 1910 of Title 29. Code of Federal Regulations (36 F.R. 10466, May 29, 1971) is hereby amended in the manner indicated below in order to pro vide an emergency standard dealing with the exposure of employees to asbestos .dust, -t -- In light of increasing information on the results of exposure of employees to airborne asbestos dust, including recent studies by the National Institute for Oc- ( cupational Safety and Health and others,' and recommendations by the American Conference of Governmental Industrial Hygienists (ACGIH), it is hereby deter mined that (1) exposure under the present'standard for asbestos dust in Table G-3, 5 1910.93, of 12 fibers per milliliter (1) Results of tests and assays on: ard limiting the exposure of workers to greater than- 5 microns in length or 2 . (a) The minocycline hydrochloride. asbestos dust. The new standard limit "d in makir '.. the batch for potency, ing the exposure of employees to asbes million particles per cubic foot of air. which is derived from an established Fed _>ty. moisrfr, y-JpH, minocycline con- tos dust is that adopted under section eral standard promulgated under the _.it, identity, and crystallinity. (b) The batch for potency and 6(c) of the Williams-Steiger Occupa tional Safety and Health Act of 1970 Walsh-Healey Public Contracts Act on_ May 20, 1969, constitutes a grave, danger moisture. and published in the Federal Register to empIoyees"exposed to this 8-hour (ii) Samples required: on this date. The standard is hereby de time-weighted average concentration: (a) The minocycline hydrochloride termined to be more effective than that and that (2) an emergency standard _is_ used in making the batch: 10 packages, presently provided under 1518.55 to necessary to protect employees from this" each containing approximately 300 the extent that it prescribes minimum excessive exposure. The National Insti milligrams. levels of exposure to asbestos dust. tute for Occupational Safety and Health (b) The batch: A minimum of 30 capsules. (b) Tests and methods of assay--(1) Potency. Proceed as directed in S 141.111 of this chapter, preparing the sample for assay as follows: Place a representa tive number of capsules into a high-speed glass blender Jar with sufficient 0.117 hydrochloric acid to give a stock solution of convenient concentration containing not less than 150 micrograms of mino cycline per milliliter (estimated). Blend for 3 to 5 minutes. Remove an aliquot and further dilute with O.lHf potassium phosphate buffer, pH 4.5 (solution 4), to the reference concentration of 0.100 microgram of minocycline per milliliter Therefore, by operation of section 4(b) (2) of the Act the new standard issued under section 6(c) supersedes the con struction safety standard relating to ex posure to asbestos dust. Section 1518.55 is hereby amended by adding a new paragraph (c) thereto. As amended 5 1518.55 reads as follows: 1518.55_ Cases, vapors, fumes, dusts, and mists. ** (c) Paragraphs (a) and (b) o_f_this sec tion'do not apply to the exposure of em ployees to airborne asbestos dust. When ever any employee Is exposed to airborne asbestos dust, tho requirements . of. concurs that the proposed change In the asbestos dust standard recommended by the American Conference of Governmen tal Industrial Hygienists should be the substantial base for the emergency standard. Action concerning the standard will be, commenced under section 6(b) in the. immediate future. Any notice of pro posed rulemaking under section 6(b) will give notice of the emergency standard as a proposed rule and aiso of any ap propriate subsidiary proposals wliich may be required under subparagrapiis (5) and (7) of section 6(b) relating to the ex posure of employees to toxic substances. Part 1910 is amended as follows: (estimated). (2) Moisture. Proceed as directed in J 141.502 of this chapter. Data supplied by the manufacturer 5 1910.93a of this title shall apply.. Effective date. This amendment shall become effective upon publication in the Federal Register (12-7-71). 1. Table G-3 following 5 1910.93 (36 F.R. 15104, Aug. 13, 1971) is hereby amended by deleting the following: Asbestos--12 Qbers per mlllUltor greater than 5 microns in length or_________ 2 Mppcf. concerning tho subject antibiotic have (Sec. 4(b)(2). 84 Stat. 1592, 29 U.S.C. G53; Tromolito5 Mppcf. 20mg./M been evaluated. Since the conditions pre Secretary's Ordor No. 13-71, 38 FJR. 8764) "%SiO, No. 235 FEDERAL REGISTER, VOL 36, NO. 234--TUESDAY, DECEMBER 7, 1971 RS-10034 2f>2(fS RULES AND REGULATIONS ' ' ' As amended. Table G-3 reads as be used to meet the exposure limits pre follows: Taiujc 0-3--MiNEnxl. Duara scribed in paragraph (a) of this section. Where such engineering methods are not feasible, or do not otherwise reduce the Substanco Mppcf Mg/M* concentrations below those prescribed in paragraph (a) of this section, respira Silica: Crystalline: Quorti (respirable)............... tory protective devices shall be provided and used in accordance with paragraph 2Q * lflroc/M* - (c) of this section. %S10|+S %3>Orf2 (c) (1) (i) When the limits of ex Qunrti (total dust)................. . 30mg/M* posure to asbestos dust prescribed in CrtonbaHlo: Um Vi Uio Wili;* enlculaled from Uio count or mass formulae for quarts.. Trulymlte: Uso K tho valuo calculated from tho for mulae for quartz. Amorphous, Including natural diatoniaceous earth...... paragraph (a) of this section are ex %SjOi+2 ceeded and when engineering controls required by paragraph (b) of this section are not feasible or do not otherwise re duce the concentration of asbestos dust below those prescribed in paragraph (a) of this section, the employer shall re 30 SOmc/H* quire the use of respiratory protective de %SlO, vices. The selection of respiratory BiHcntos (Ie.<s than \% crys talline silica): Mica.... ................................... " Soapstone......... Talc......................................... Portland cement................... OraphlLe (natural)............... L. Coal dust (respirable fraction less than 5% SiOj)--.......... For more limn 5% SiOj............ protective devices shall be limited to those specified in the remaining sub- 20 paragraphs of this paragraph (c). 20 30 (ii> The employer shall require that 60 each employee test his respiratory pro 15 tective device before each use in order 2.4mg/M* to insure a proper fit according to the or lOmg/M* manufacturer's instructions. The em ployer shall further provide for effective Inert or NuiVance Dust: Respirable fraction............... Total dust. ............. ...........- %SiOj+2 training or supervision of employees in 16 6mg/M* the testing of respiratory protective de 0 16mg/M* vices for fit before their use. (2) For an atmosphere containing not Noth: Conversion factors-- znp(>cfX3A.3>milllon particles per cubic meter. = particles por c.e. more than 25 fibers per milliliter greater than 5 microns in length over an 8-hour average, or more than 50 fibers per milli Millions of particles per cubic foot of air, based on bnplngcr samples counted by light-field technics. i Tho percentage of crystalline silica in tho formula is tho amount determined from alr-borno samples, ex cept la those instances in which other methods have been shown to bo applicublo. As determined by tho membrano filter method at 430xpbase contrast magnification. Both concentration and percent quarts for tho appli cation of this limit are to bo determined from tho fraction passing a slie-solcctor with the following characteristics: liter over any period of 15 minutes, a reusable or single-use filter type respira tor, operating with negative pressure during the inhalation phase of breathing, approved by the U.S. Bureau of Mines under the provisions of 30 CFR Part 14 (Bureau of Mines Schedule 21B), or a valveless respirator providing equivalent protection, shall be used. (3) For an atmosphere containing not Aerodynamic diameter (unit density sphere) Forecnt passing selector more than 250 fibers per millilter greater titan 5 microns in length over an 8-hour ' :i. f fi.O 10 00 76 average, or more titan 500 fibers per milliliter over any period of 15 minutes, 60 a powered filter positive pressure res 25 0 pirator approved by the U.S. Bureau of Mines under the provisions of 30 CFR .Tlio measurements under Utls nolo refer to Uio tiso o( on AKC Instrument. It tho re.spirabto fraction of cool dust fsdetermined with nMflK U10 littdroroi)es|V)j!din:r to tliol ot 2.4 Mit/M1 In the. tnltlc for coni dllst Is 4.6 Mg/M, 2. A new 5 1010.93a Is added to Part 1910. The new 5 1910.93a reads as Part 14 (Bureau of Mines Schedule 21B)j shall be used. ; (4) For an atmosphere containing more than 250 fibers per milliliter greater than 5 microns in length over an 8-hour average a type C positive pres-, follows: sure supplied-air respirator approved by 19I0.93ii A-Wmus <1u-_l the U.S. Bureau of Mines under the pro visions of 30 CFR Part 12 (Bureau of Ta) Tlie 8-hour time-weighted aver Mutes Schedule 19B) shall be used. , age airborne concentration of asbestos (5) The employer shall establish a dust to which employees are exposed respirator program in accordance with shall not exceed 5 fibers per milliliter the requirements of American National greater than 5 microns in length, as de Standard Practice for Respiratory Pro termined by the membrance filter tection Z88.2--1969. method at 400-450X magnification (4 (6) The respirators provided each em millimeter objective) phase contrast ployee shall be properly inspected, illumination. Concentrations above 5 cleaned, repaired and stored. fibers per milliliter but, not to exceed 10 (d) (1) When an employer has em fibers per milliliter, may be permitted ployees who are exposed to asbestos dust up to a total of 15 minutes in an hour for * exceeding the limits prescribed in para up to,5 hours in. an 8-hour day. graph (a) of this section and the ex (b) Engineering methods, such as but posure results from the operations de lot limited to, enclosure, vacuum sweep scribed In the remaining subparagraphs ing, and local exhaust ventilation, shall of this paragraph (d). the employer shall comply with the requirements of these subparagraphs relating to the operations involved. The requirements of this para graph arc in addition to those prescribe'' in paragraph (b) of this section. (2) All hand- or power-operated tools which produce asbestos dust such as. but not limited to, saws, scorers, abrasive wheels, and drills shall be provided with local exhaust ventilation and dust col lectors in accordance with the American National Standard Fundamentals Gov erning the Design and Operation of Local Exhaust Systems; ANSI Z9.2--1971. (3) Employees exposed to the spraying of asbestos or the demolition of pipes, structures, or equipment covered or in-, sulated with asbestos shall be provided with respiratory protective devices in accordance with paragraph (c)(4) of this section. (e) Asbestos cement, mortar, coatings, grout, and plaster shall be mixed in closed bags or other containers. (f) --Asbestos waste and scrap shall be collected and disposed of in sealed bags or other containers. (g) All cleanup of asbestos dust and blowing shall be performed by vacuum cleaners. No dry sweeping shall be per formed. 3. Section 1.910.12 is amended by changing paragraph (a) in order to apply the emergency standard prescribed in the new 1910.93a, which is published in this document, to construction work which is subject to the Act, The amendment is necessary in light of the rule of regula tory construction set forth in 5 1910.5(c). As amended, 1910.12 reads as follows- 1910.12 Construction work. (a) (1) Adoption and extension of es tablished safety and health standards for construction. The standards pre scribed by Part 1518 of this title and in effect on April 28, 1971, are adopted as occupational safety or health standards under section 6(a) of the Act and shall apply, according to the provisions thereof, to every employment and place of employment of every employee en gaged in construction work. Each em ployer shall protect the employment and places of employment of each of Iris employees engaged in construction work by complying with the appropriate standards prescribed by this paragraph. (2) The 'standards prescribed in 5 1518.55(c) of this title shall apply in the case of the exposure of any em ployee in construction work to airborne asbestos dust. * * Effective ' date. These amendments shall become effective immediately upon publication in the Federal Recister (12-7-71). (Sec. 6(c), 64 Stat. 1596, 29 TJ.S.C. 655: Sec retary's Order No. 12-71, 36 F.R. 8754) Signed at Washington, D.C., this 2d day of December 1971. G. C. Guenther, Assistant Secretary of Labor. [FH. Doc.71-17833 Filed 12-6-71:8:47 ami FEDERAI REGISTER, VOL 36, NO. 234--TUESDAY, DECEMBER 7, 1971 Rq- 1 171(71-R=l