Английский для сварщиков. Гричин С.В. - 142 стр.

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142
Welding fume 5 mg/m
3
Fluoride (as F) 2.5 mg/m
3
Iron oxide, fume (as Fe) 5 mg/m
3
10 mg/m
3
Zinc oxide, fume 5 mg/m
3
10 mg/m
3
Manganese, fume (as Mn) 0.5 mg/m
3
Ozone 0.2 ppm
Nitric Oxide 1 ppm
Nitrogen dioxide 1 ppm
Chromium III compounds (as Cr) 0.5 mg/m
3
Barium compounds, soluble (as Ba) 0.5 mg/m
3
Carbon monoxide 50 ppm 300 ppm
Copper fume 0.2 mg/m
3
If the fume contains only substances such as iron or aluminium which
are of low toxicity, an 8 hour (TWA) OES of 5mg/m3 applies; this figure is
the average concentration of particulate fume that should not be exceeded in
an 8 hour day.
* Control of Substances Hazadous to Health (COSHH) Regulations.
The Control of Substances Hazardous to Health (COSSH) Regulations 2002
require employers to monitor the safe use of chemicals and hazardous
substances at work. It requires them to: control exposure to hazardous
substances to prevent ill health both now and any future cumulative effects
they may have, protect both employees and others who might be exposed,
compile records of employees using these materials, supply employees with
suitable personal protective equipment.
After reading activity
Think of Russian equivalents for the following word combinations from the
text:
Innermost parts of the lung, fuel gas, fine particles, respirable fraction
of particles, carbon dioxide, ultraviolet radiation, galvanised steel, lasting
effects, welding situations, lung cancer, sensible precaution, surface coating,
general population, inadequate ventilation, risk of the build up of inert

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