Document qaJbxVD7JLZe0mEg9DdxaQpEq

FILE NAME: Shipbuilders Council of America (SHIP) DATE: 1972 Feb 4 DOC#: SHIP068 DOCUMENT DESCRIPTION: Memo to Accident Prevention Committee RE NAVSHIPS Instruction on Asbestos Exposure Hazards SHIPBUILDERS COUNCIL OP AMERICA WAT ERG AT E SI X H U N D R E D I WA S H I N G T O N . C . a O Q 3 7 F eb ru ary 4, 1972 To: ACCIDENT PREVEN TIO N CO M M ITTEE M. P . R edford, Chairm an H arry H. Howard ' J, R adcliffe M aum enee H arold J. M organ M aurice M osier W illiam L . Rich J. Sam uel Stratton Paul Sousa R. A. Stubblefield M anuel C. V al Dez Edward V erderane G. P . W alls S e a rle T . W alton Subject: NAVSHIPS Instruction on A sb esto s E xpsoure H azards The en closed NAVSHIPS in struction dated 9 F e b ru ary 1971, is fo r your in fo rm atio n a s to N av y 's a p p ro a c h on a s b e s t o s d u sts on N avy w ork in p riv a te y a r d s. We u n d erstan d that so m e y ard s have alread y received th eir instruction d irectly fro m NAVSHIPS. Note that on page 4, item p arag rap h (17) m entions the 5 fib e rs lim it a s in the D ecem ber 7, 1971, OSHA E m ergen cy Stan dard. cc: Thom as J . Defoe Otho H auns child Thom as Hayes R. E. M ingledorff Kent Savage " ________________ PLAINTIFF'S / EXHIBIT | u ----S--B--C--A----5-0--3--6---- 1 $ *_____ _______________ DEPARTMENT OF THE NAVY n a v a l ship s ystems c o m m a n d W A S H IN G T O N . EXC. 20360 IN BLCI r K C H R TO NA.VSHIPSINST 510C 07D:JC:lb Ser 70-07D 9 February 1971 IttVSHIPS INSTRUCTION 5100 >26 From: Commander, Naval Ship Systems Command Subj: Asbestos Exposure Hazards; control of Ref*: (a) MIL-STB 769C of 15 Nov 1969, thermal Insulating Requirements for Machinery and Piping (b) NAVSHIPS .Technical Manual 9390 of Sep 1967 . (c) NAVMAT P-5100 "Safety Precautions for Shore Activities" (d) NAVKAT P-10470 "Safety Equipment Manual" Enel: (1) Suggested Warning Signs 1. Pur-pose, To prescribe appropriate safety precautions during the use of asbestos, r ' 2 . Background. a. Asbestos is a broad term applied to a group of fibrous minerals such as araosite, chrysotile, crocidolite, etc., composed of silicates of iron, sodium, calcium and/or magnesium. i . _ b. The most critical use of asbestos in the Navy from a safety viewpoint is in the' fabrication, installation, repair or removal of pipe and boiler insulation materials. Some workers sustain accidental con tacts either while employed in various capacities where asbestos products are processed or when working in plant areas in which an environmental pollution of the air exists due to asbestos. The severe effects of asbestos on the lungs is the main factor for considering the elimination of asbestos as an insulation material oh piping, ducts and boilers. References (a) and (b) set standards of materials willch are to be used. These references will be reviewed periodically and changed as necessary to reflect the use of new materials that meet or exceed the standards now in use;. Reference (c) also provides guidance on precautions regard ing asbestos. 3. Action. The following safety precautions will be observed by all supervisors and workers engaged in the fabrication, installation and/or removal (rip-out) of asbestos-containing insulation/matorial. The pro visions of this instruction will be effective as of this date. The provisions of this instruction are considered as minimum health and safety requirements; more stringent restrictions may be applied by local Commanders. S202 MAVSIIIPSIHST 5100.26 9 February 1971 a. Fabrication: _ (1) Asbestos operations should be segregated from ,chat operations so as not to expose other personnel to asbestos dr 1 Ti the work cannot bo separated, personnel in immediately adjact1 areas . will wear a Bureau of Mines approved respirator for irritant a-scs and other prescribed, personal, protective equipment. The variou iuems of personal, protective equipment will be those approved by the ndustrial Hygienist, the Medical Officer, or as authorized by reference fd). (2) The handling and fabrication areas will be res'acted t o the necessary workers, supervisors and inspection personnel di '.cl l.y concerned with the asbestos operations. Casual visitors or ps- - will be restricted from entry into any area where asbestos con- - materials are being fabricated. All supervisors, workers, ins - . etc., will wear approved respirators for irritant! dusts when t'- ,, .a working with dry material containing asbestos or are in asbestr, c-cor- taminated areas of-work spaces. (3 ) Asbestos cloth cutting tables or benches provide >d.h adequate local exhaust ventilation should be used whenever cutt-r,j operations are performed. Exhaust air containing asbestos dust - ! ' be dispersed into the atmosphere without being adequately filter Filters will be carefully changed or cleaned to prevent atmosphi contamination. ' (l) Power saws will be located in a suitable enclosm is equipped vith exhaust ventilation to a filter trap. This exh-ivi ' ventilation will be independent of the shop ventilation supply/e faasf system. The switches will be interlocked so that the exhaust sy-tem operates at all times while the saw blades are in operation, vhicn (5) Suitable waste containers lined with disposable pi as tic bags will be provided at each cutting table/fabrication operation. Dis carded and scrap asbestos materials will be immediately placed in piaati bags which are then sealed for disposal. Scrap should be disposed of 0:1 a daily basis. . . (6) The Industrial Hygienist or Medical Officer will r "'ovutn the exact method and place of disposal of asbestos dusts and sera minimize exposures. ` _ (7) Shop walls, ceilings and floors should be designed c prevent dust accumulations and to facilitate housekeeping measure,- 2 ( . - * NAVSHIPSINST 5100.26 9 February 1971 (8) Industrial type vacuum cleaners should be used up dusts and scrap. The vacuum cleaner operator will wear an approved respirator when operating his cleaner. The water impaction collection system vacuums best and safely. Dry sweeping of scrap or dust should not'be permitted. If sweeping is necessary, the scrap and possible dust will bo wet down with a fine water spray prior to sweeping. Drop cloths will be placed under work tables or areas if scraps and dust will fall into difficult to clean areas or crevices. ' to'pick ' (9) Asbestos cloth or tape will not be torn or ripped. * Scissors or cutting knives will be used. (10) In-Shop operations for mixing of all cements will be " provided with permanent exhaust 'ventilation equipment. This exhaust air : will not be vented into the shop atmosphere and must be adequately filtered before its release to the outside atmosphere. In-bag mixing . may be done without exhaust ventilation so long as bag integrity is * < maintained. , ; '< (11) The asbestos cloth shall be wet down prior to fabrication. * # r (12) All regularly assigned insulation workers and supervisors . will be given a H " x 17" annual chest X-ray. This will be done on the same continuing, periodic basis even if the worker is transferred or ' reassigned into another job title. X-ray films of asbestos workers, active, reassigned or retired, will be specially identified to ,the con- ' suiting radiologist to alert him to the need for a special type of reporting. The health records of insulation workers will be marked ''Asbestos worker". . , ;X- (13) Insulation workers should be provided with clean coveralls at the beginning of each shift or as often as needed. The coveralls will be removed before the removal of the respirator and should not be "beaten" to remove excess dusts or scrap adhering to it. Contaminated coveralls will be placed in plastic bags, until disposed of or laundered, "s -J u. i p (14) Materials will be removed from their cartons or package ' with care to reduce dust or -scrap generation. Wetting of the material prior to removal substantially reduces dust production. (15) The Industrial Hygienist will provide at least twice yearly p - indoctrination talks to all asbestos workers on the proper measures of personal protection against asbestos exposure. 3 MAVSHIPS1N3T 5100.26 9 February 1971 (16) Adequate warning signs (enclosure (l) or similar) will be posted at all entrances to the fabrication shop sites to alert workers and other personnel that asbestos operations are in progress. (17) The Industrial Hygienist should make frequent inspection of the Fabrication and Installation sites to check the level of airborne contamination. These inspections should be done montiily or more often as rquired. The Threshold Limit Value (TLV) for airborne asbestos is 5 fibers greater than 5 microns per milliliter. If this TLV is exceeded, the Industrial Hygienist will assist the shop foreman in designing better preventive measures to control the airborne contamination. Asbestos installation, fabrication or removal, operations should be sus pended until the proper TLV can be maintained so as to protect the workers and others in the area. . (18) Cement Lags will be opened wide to permit emptying of the contents without shaking. The material should be made into a slurry as quickly as possible to prevent dust generation. Empty bags will be wet down and placed in a waste container. . (19) Suitable replacement materials for asbestos will be used when practicable. Key or untested replacement materials will be sub mitted to UAVSEC for evaluation and approval prior to use. b. Installatj or.: (1) Personnel engaged in Installation operations will wear Industrial Hygienist approved respirators whenever asbestos containing materials are being handled. The Medical Officer will be the approval authority for any exceptions, (2) Unpacking and application of insulation materials at the installation site will be done in such a manner that will minimize airborne dust. (3) The area around the installation procedures should be isolated when possible. Adequate warning signs (enclosure (1)) will be posted. Only persons whose work requires their presence should be per mitted in such areas. If airborne asbestos dust is present, they will wear Bureau of Mines approved respirators for dusts or leave the area. (i) The Industrial Hygienist will be requested to determine suitable methods for preventing large scale contamination of machinery and engine spabes when installation or removal operations are performed in these areas. ' NAVSHirSINST 5100.26 9 February 1971 (5) Suitable waste containers lined with di sposuble plastic bags will be Kept available at the installation situ so that discarded or scrap Insulation materials can be immediately placed in them. (6) The exact method and place of disposal of scrap asbestos and asbestos dust will be approved by the Industrial Hygienist or the Medical Officer. Personnel assigned these tasks will be specifically advised on needed precautions by the Industrial Hygienist or the shop supervisor, (7) The ventilation requirements of shipboard or confined spaces will be determined by the Industrial Hygienist or Safety Officer and will be in accord with Article 0212 1045-1054- of reference (c). (&) Portable dust coliectors/industrial-type vacuum cleaners should be placed in use at the point of operations within confined spaces when possible. . (9) Decks and spaces contaminated by insulation debris will not- be dry swept. These areas must be v/et down by a fine spray prior to sweeping (when vacuum cleaners cannot be used). (10) Workers performing insulation work should be provided with clean paper coveralls when dusty conditions are to be encountered. The coveralls will be removed before the respirator is removed. The coveralls should not be "beaten" to remove excess dusts or scraps ad hering to it. Contaminated coveralls will be disposed of by placement in the asbestos scrap tag. . c. Removal ( Rio-Out): (1) Personnel engaged in Removal operations will wear Bureau of Mines approved respirators whenever asbestos containing materials are being handled. The Medical Officer will be the approval authority for any exceptions. (2) The area around the Removal procedures should be isolated when possible. Adequate warning signs (enclosure (1)) will be posted. Only persons whose work requires their presence will be permitted in ' such areas. If airborne asbestos dust is present, they will wear Bureau of Mines approved respirators for irritant dusts or leave the area. (3) The Industrial Hygionist/Medical Officer should designate specific procedures to collect scrap and dust in the machinery spaces. 5 -NAVSHIPSIHST 5100.26 9 February 1971 . . (A) The area(s) in which asbestos removal takes place will be confined when possible by moans of curtains, portable partitions, drop cloths, etc., to- prevent excessive contamination of other areas. ' (5) In removal operations that involve dusty work, clean paper coveralls will be supplied at the start of each shift; then for lunch, the workers will dispose of the dirty coveralls, then dispose of their respirator filters. After lunch they will put on clean coveralls and respirators with now filters. At the end of the shift all contaminated coveralls will be disposed of by placement in the asbestos scrap bags. (6) Suitable waste containers lined with disposable plastic bags will be kept available at the removal site so that discarded or scrap insulation materials can be immediately placed in them. (7) The exact method and place and asbestos dust will be approved by the Officer. This is particularly applicable machinery spaces. ^ of disposal of scrap asbestos Industrial Hygienist/Medical on-board ships and in . (&) High asbestos-containing scrap material should be wet down before collection, hauling or dumping. Personnel assigned these tasks will be specifically advised on needed precautions by the Industrial Hygienist or the insulation shop supervisor. (9) The ventilation requirements of shipboard or confined spaces will be determined by the Industrial Hygienist or Safety Officer and will be in accord with articles 0212, 10A5-105A of reference (c). (10) Portable dust collectors/industrial-type vacuum cleaners should be placed in use at the point of operations within confined spaces. They may be used to temporarily and partially clean a worker who has to leave the work area for a short time. ' (11) Decks and spaces contaminated by insulation debris should not be dry swept. These areas must be wet down by a fine spray prior to sweeping (when'vacuum cleaners cannot be used). (12) A cast cutter similar to the Number S&.5 STRYKER GUTTER will be used when possible during removal operations. This is a cutter used by doctors to remove plaster casts from patients. Old insulation should not be ripped or torn. It should be cut whenever possible. The addition of a vacuum attachment to the STRYKER CUTTER will materially aid in controlling dust generation. This attachment should be used whenever practicable. 6 I ^ i j * NAVSHIPSIM' -. 9 February ' cj " ! * (13) The Industrial Hygienist will periodically evaluate"thr level of asbestos exposure and recommend positive measures for dust control in various areas. This evaluation should be done at the stari of each new asbestos operation and as often thereafter as the findings indicate to provide effective control over dust producing operations, ( H ) The use of off-hours work should be considered to minin i z the number of personnel susceptible to exposure of irritant dusts. d. Approved Safety Matcrials/Clothing: (1) The Industrial Hygienist will recommend and approve the various types of respirators, overalls and other needed personal pro tective equipment to be used by personnel engaged in various asbestos operations. Only personal protective equipment approved in accordance with Federal Specification GGG-M-125, Type III, Classes 1 and 2 as set forth in reference (d) will be used. . (2 ) Each worker will be responsible for maintaining his respirator and filters in a satisfactory condition. He will wear it in a proper manner when working on dust producing operations and during all asbestos removal operations. (3) Supervisors will enforce the proper use of personal protective equipment during all phases of asbestos work. They will arrange for prompt, scheduled physical examinations and X-rays as prescribed^by the Medical Officer (normally annually). (A) Supervisors will arrange for an adequate supply of clean coveralls and new filters for the respirators used by insulation workers. e. Application of Substitute Materials For Asbestos: (1) Any proposed materials for use in place of asbestos will be submitted to HAVSEC for evaluation and approval prior to use. Distribution: SNDL FKL1 NAVSHIPYD FKL2 SUP3HIP FKL6 IIJACTSiilPFAC FB30 NAVSHIPRSPFAC FB34 FLEACT SASEBO Deputy Commander for Field Activities/Frogram Director for Shipyard Modernisation and Manag 7 i NAVSHTPCiiNST 6100.26 9 February 1971 Distribution (Continued): . Copy to: SNDL A5 BlIMED (732) B5 COCARD FKA1C NAVFAC FKA1F NAVSUP FF5 NAVSAFECEU A/4A NAVMAT (OAO) A3 OPNAV (098) NAVSEC (6101, 6 U 0 , 6106E, 6131, 6153) NAVSII1T3 (07D)(100) NAVSHIF3 Special Lint Y-2 Stocked at: Supply k Fical Department Code 51A.32, Naval Station Washington, D, C, 20390 J. Crawford, x27606 L. Breidingcr, 2/1/71 S NAVSHIPSINST 5100.26 9 February 1971 SUGGESTED WARNING SIGNS I I i i ii RESTRICTED ACCESS ASBESTOS FABRICATION AREA Ii RESTRICTED ACCESS ASBESTOS INSTALLATION/RIP OUT WEARING OF RESPIRATORS REQUIRED 9 ' ENCLOSURE (l)