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Department
of Labour (DOL) |
Department
of Minerals and Energy (DME) |
Regulations for
Hazardous Chemical
Substances, 1995 - Annexure 1 |
OELs for
Airborne Pollutants
Schedule 22.9(2)(a)
Amendment to the Regulations in Respect
of
Occupational Hygiene, October 2006 |
Control
Limits (Table 1): A - Z |
Exposure to a substance demarcated with an asterix
(*) must be kept as far below the OEL as is
reasonably practicable. |
Recommended
Limits (Table 2): |
OELs: |
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BEIs (Table 3):
A - Z |
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Notes
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At the top of each OEL page the
link to the asosh.org SiteSearch
page and its
Mirror
are included to provide quick access to analytical methods, MSDS and other
chemical information
(See the Examples page and
Flash Demo). |
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Ceiling values
are not listed by DOL |
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For practical reasons in monitoring, OEL-STEL
values may be used as OEL C values for use underground. |
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A
number of
errors exist in the 1995 DOL listing of OELs due to duplication of chemicals
under different names. As an example over 30% of the Control Limits
are also listed under other names in the Recommended Limits section. |
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A limited number of
OELs are based on static air sampling rather than personal sampling. These
include the 8 hour OEL for cotton dust and the annual average OEL for
vinyl chloride. |
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Tabulation
shows inhalable particulates unless indicated to be respirable. |
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Size selector to use the
Johannesburg criteria for "Respirable
dust" with an efficiency of:
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100 % particles
of 1 micron aerodynamic
diameter |
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50 % particles of 5
micron aerodynamic
diameter |
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20 % particles of 6
micron
aerodynamic diameter |
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0 % of particles of 7
micron
aerodynamic diameter
and larger to pass through the size
selector |
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The concentration of "respirable
particulate" shall be determined from the fraction passing a size
selector with an efficiency of:
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100%
particles of 0 micron aerodynamic diameter |
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50%
particles of 4 micron aerodynamic diameter |
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30%
particles of 5 micron aerodynamic diameter |
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1%
particles of 10 micron aerodynamic diameter |
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| Abbreviations |
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| CAS = Chemical Abstracts Service Number |
ISO = International Standards
Organisation |
| OEL = Occupational Exposure Limit |
OEL-C = OEL -
Ceiling |
| OEL - CL = OEL - Control Limit |
OEL-STEL = OEL
- Short Term Exposure Limit |
| OEL - RL = OEL - Recommended Limit |
f/ml = fibres per millitre |
| mg/m3 = Milligrams per cubic
meter |
ppm = Parts per million |
| Sen = Capable of causing
respiratory sensitisation |
Sk = Skin absorption |
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DOL Regulations for
Hazardous Chemical Substances, 1995
Annexures |
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