// CODE SNIPPET
1910.134(d)(3)(i)(B) Maximum Use Concentration (MUC)
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The employer must select a respirator for employee use that maintains the employee's exposure to the hazardous substance, when measured outside the respirator, at or below the MUC.
Employers must not apply MUCs to conditions that are immediately dangerous to life or health (IDLH); instead, they must use respirators listed for IDLH conditions in paragraph (d)(2) of this standard.
Related Code Sections
1910.134(d)(3)(i)(B) Personal Protective Equipment, Maximum Use Concentration (MUC)
not apply MUCs to conditions that are immediately dangerous to life or health (IDLH); instead, they must use respirators listed for IDLH conditions ...
OSHA 1910 General Industry > I Personal Protective Equipment > 1910.134 Respiratory Protection > 1910.134(d) Selection of Respirators > 1910.134(d)(3) Respirators for Atmospheres That Are Not IDLH > 1910.134(d)(3)(i) > 1910.134(d)(3)(i)(B) Maximum Use Concentration (MUC)
1910.134(d)(3) Personal Protective Equipment, Respirators for Atmospheres That Are Not IDLH
50
10,000
Notes:
1 Employers may select respirators assigned for use in higher workplace concentrations ...
OSHA 1910 General Industry > I Personal Protective Equipment > 1910.134 Respiratory Protection > 1910.134(d) Selection of Respirators > 1910.134(d)(3) Respirators for Atmospheres That Are Not IDLH
1910.134(d) Personal Protective Equipment, Selection of Respirators
for use in higher workplace concentrations of a hazardous substance for use at lower concentrations of that substance, or when required respirator use ...
OSHA 1910 General Industry > I Personal Protective Equipment > 1910.134 Respiratory Protection > 1910.134(d) Selection of Respirators
1910.252(c)(5)(ii) Welding, Cutting, and Brazing, Maximum Allowable Concentration
on stainless steels. Where air samples taken at the welding location indicate that the fluorides liberated are below the maximum allowable concentration ...
OSHA 1910 General Industry > Q Welding, Cutting, and Brazing > 1910.252 General Requirements > 1910.252(c) Health Protection and Ventilation > 1910.252(c)(5) Fluorine Compounds > 1910.252(c)(5)(ii) Maximum Allowable Concentration
1910.1000(b)(2) Toxic and Hazardous Substances, Acceptable Ceiling Concentrations
limit given for the substance in the table, except for a time period, and up to a concentration not exceeding the maximum duration and concentration ...
OSHA 1910 General Industry > Z Toxic and Hazardous Substances > 1910.1000 Air Contaminants > 1910.1000(b) Table Z-2 > 1910.1000(b)(2) Acceptable Ceiling Concentrations