Code of Federal Regulations: Containing a Codification of Documents of General Applicability and Future Effect as of December 31, 1948, with Ancillaries and IndexDivision of the Federal Register, the National Archives, 1998 - Administrative law |
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Page 19
... count or mass formulae for quartz Tridymite : Use 1⁄2 the value calculated from the formulae for quartz Amorphous , including natural diatomaceous earth Silicates ( less than 1 % crystalline silica ) : Mica ..... Soapstone Talc ( not ...
... count or mass formulae for quartz Tridymite : Use 1⁄2 the value calculated from the formulae for quartz Amorphous , including natural diatomaceous earth Silicates ( less than 1 % crystalline silica ) : Mica ..... Soapstone Talc ( not ...
Page 22
... counting method . ( iii ) If an equivalent method to the ORM is used , the employer shall ensure that the method meets the following criteria : ( A ) Replicate exposure data used to establish equivalency are collected in side - by ...
... counting method . ( iii ) If an equivalent method to the ORM is used , the employer shall ensure that the method meets the following criteria : ( A ) Replicate exposure data used to establish equivalency are collected in side - by ...
Page 33
... count- ing . See below for rejection of blanks . 2. The preferred collection device shall be the 25 - mm diameter cassette with an open- faced 50 - mm electrically conductive exten- sion cowl . The 37 - mm cassette may be used if ...
... count- ing . See below for rejection of blanks . 2. The preferred collection device shall be the 25 - mm diameter cassette with an open- faced 50 - mm electrically conductive exten- sion cowl . The 37 - mm cassette may be used if ...
Page 34
... Count only fibers equal to or longer than 5 micrometers . Measure the length of curved fibers along the curve . b . In the absence of other information , count all particles as asbesto that have a length - to - width ratio ( aspect ...
... Count only fibers equal to or longer than 5 micrometers . Measure the length of curved fibers along the curve . b . In the absence of other information , count all particles as asbesto that have a length - to - width ratio ( aspect ...
Page 35
... count unless differential counting is performed . This requires a great deal of experience to adequately differen- tiate asbestos from non - asbestos fibers . Posi- tive identification of asbestos must be per- formed by polarized light ...
... count unless differential counting is performed . This requires a great deal of experience to adequately differen- tiate asbestos from non - asbestos fibers . Posi- tive identification of asbestos must be per- formed by polarized light ...
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Common terms and phrases
acrylonitrile action level analysis analytical Appendix asbestos B2MU benzene blood lead level breathing cadmium cancer carcinogen centration charcoal chloride clean clothing and equipment compliance containers creatinine CRTU DBCP determine dust emergency employee exposure employee's employer shall assure employer shall provide ethylene oxide evaluation expo exposed fibers filter formaldehyde full facepiece hazardous chemicals initial labels laboratory least liquid material safety data means measurements medical examination medical removal medical surveillance ment method methylene chloride NIOSH operations OSHA percent permissible exposure limit personal protective equipment physician ployee practice controls procedures protective clothing protective equipment QA/QC quired records regulated area required by paragraph respirator Safety and Health safety data sheets samples self-contained breathing apparatus skin specific standard STEL substance tests tion tive toxic tube urine vapor vinyl chloride workers workplace µg/g µg/l µg/m³