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Appendix A: OSHA Laboratory Standard
Pages 217-234

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From page 219...
... Uses of hazardous chemicals which do not meet the definition of laboratory use, and in such cases, the employer shall comply with the relevant standard in 29 CFR part 1910, subpart Z even if such use occurs in a laboratory.
From page 220...
... Setaflash Closed Tester (see American National Standard Method of Test for Flash Point by Setaflash Closed Tester (ASTM D 3278-78~. Organic peroxides, which undergo autoaccelerating thermal decomposition, are excluded from any of the Cashpoint determination methods specified above.
From page 221...
... "Protective laboratory practices and equipment" means those laboratory procedures, practices and equipment accepted by laboratory health and safety experts as effective, or that the employer can show to be effective, in minimizing the potential for employee exposure to hazardous chemicals. "Reproductive toxins" means chemicals which affect the reproductive chemicals which affect the reproductive capabilities including chromosomal damage (mutations)
From page 222...
... Standard operating procedures relevant to safety and health considerations to be followed when laboratory work involves the use of hazardous chemicals; (ii) Criteria that the employer will use to determine and implement control measures to reduce employee exposure to hazardous chemicals including engineering controls, the use of personal protective equipment and hygiene practices; particular attention shall be given to the selection of control measures for chemicals that are known to be extremely hazardous; (iii)
From page 223...
... the location and availability of the employer's Chemical Hygiene Plan; (iii) The permissible exposure limits for OSHA regulated substances or recommended exposure limits for other hazardous chemicals where there is no applicable OSHA standard; (iv)
From page 224...
... (ii) Employers shall maintain any material safety data sheets that are received with incoming shipments of hazardous chemicals, and ensure that they are readily accessible to laboratory employees.
From page 225...
... Safety Recommendations G Material Safety Data Sheets Foreword As guidance for each employer's development of an appropriate laboratory Chemical Hygiene Plan, the following non-mandatory recommendations are provided.
From page 226...
... "Prudent Practices" deals with both safety and chemical hazards while the laboratory standard is concerned primarily with chemical hazards. Therefore, only those recommendations directed primarily toward control of toxic exposures are cited in this appendix, with the term "chemical hygiene" being substituted for the word "safety." However, since conditions producing or threatening physical injury often pose toxic risks as well, page references concerning major categories of safety hazards in the laboratory are given in section F
From page 227...
... General laboratory ventilation. This system should: Provide a source of air for breathing and for input to local ventilation devices (199~; it should not be relied on for protection from toxic substances released into the laboratory (198~; ensure that laboratory air is continually replaced, preventing increase of air concentrations of toxic substances during the working day (194~; direct air flow into the laboratory from non-laboratory areas and out to the exterior of the building (194~.
From page 228...
... Anyone whose work involves regular and frequent handling of toxicologically significant quantities of a chemical should consult a qualified physician to determine on an individual basis whether a regular schedule of medical surveillance is desirable (11, 50~.
From page 229...
... E Basic Rules and Procedures for Working with Chemicals The Chemical Hygiene Plan should require that laboratory workers know and follow its rules and procedures.
From page 230...
... Deposit chemical waste in appropriately labeled receptacles and follow all other waste disposal procedures of the Chemical Hygiene Plan (22, 24~. Do not discharge to the sewer concentrated acids or bases (231~; highly toxic, malodorous, or lachrymatory substances (231~; or any substances which might interfere with the biological activity of waste water treatment plants, create fire or explosion hazards, cause structural damage or obstruct flow (242~.
From page 231...
... (A Medical surveillance: If using toxicologically significant quantities of such a substance on a regular basis (e.g., 3 times per week) , consult a qualified physician concerning desirability of regular medical surveillance (50~.
From page 232...
... G Material Safety Data Sheets Material safety data sheets are presented in "Prudent Practices" for the chemicals listed below.
From page 233...
... HAZARDOUS SUBSTANCES INFORMATION: 1. American Conference of Governmental Industrial Hygienists, Threshold Limit Values for Chemical Substances and Physical Agents in the Workroom Environment with Intended Changes, 6500 Glenway Avenue, Bldg.
From page 234...
... American National Standards Fundamentals Governing the Design and Operation of Local Exhaust Systems ANSI Z 9.2-1979, American National Standards Institute, NY 1979.


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