Sulzer Metco ECO ARC 600, Manual

Page: 26 / 94

General Safety Instructions
1-20
Revision 1/10/08
For some substances there are no concentrations that are still
harmless. If you have to use these substances for technical reasons
anyhow, you must keep the quantity of such harmful substances in the
breathable air below the technical reference concentration (TRC).
Even if you adhere to the TRC values, you cannot fully avoid the risk
of cancer or mutagenesis from such substances. Therefore you must
improve constantly the protective measures and technical processes
in order to undershoot the TRC values as far as possible. The TRC
values are adapted constantly to the state of the art and analytical
capabilities (see TRGS 900).
A substance will generally not harm your health if the concentration in
the breathable air at the workplace does not exceed this value.
Nickel as
- Metal
- Nickel carbonate
- Nickel oxide
Nickel compounds in
form of inhalable
droplets Ni
0,5
0,5
0,5
0,05
Nickel and virtually all nickel
compounds are deemed carcinogenic.
Fumes and dust containing nickel can
cause sensitization of the skin.
Tantalum Ta 5 No known poisoning, adverse effect on
the respiratory organs.
Titanium oxide TiO2 1,5 A No known irritation or toxic effects.
Tin compounds
(inorganic) Sn 2 Tin compounds can cause metal-fume
fever. See copper.
Zinc oxide ZnO 5 Zinc oxide can cause metal-fume
fever. See copper.
Zirconium compounds Zr 5 Adverse effect on the functioning of the
respiratory organs.
Substance Formula MAC-value
(mg / m³) TRC-Value
(mg / m³) Hazards to health if MAC or TRC-
values are exceeded
TRC-value
MAC-value