— 23.07.2020 —
2.3.3 Sample material
Warning! Toxic substances!
The sparking process produces a black precipitate (metal condensate). The
condensate could be toxic or flammable, depending on the sample material.
Metal vapors may be generated by sparks of the sample material. Depending
on the sample material, these vapors may be toxic, e.g. if using heavy metals
or other hazardous metals during the test.
Protective gloves and safety goggles must always be worn when
cleaning the spark stand and when cleaning the gas-washing bottle or
the filter bottle. This also applies when replacing the filter ins
with toxic components have been sparked off, wearing a breathing mask
to prevent the inhalation of condensate particles is mandatory.
When disposing of the condensate, compliance with legal regulations
and fire prevention instructions is mandatory.
If the samples contain toxic substances, an extraction system must be
installed at the spark stand.
In this case, the gas escaping from the spectrometer's exhaust pipe must
be channeled to the outside of the building.
The installation of an extraction system and the discharge of the exhaust
gas into the open air makes it easier to comply with the maximum
permissible pollutant concentrations in the breathing air below the
applicable limit values, MAK values (Maximale Arbeitsplatzkonzentration
maximum workplace concentration), as well as workplace limit values
and biological limit values or comparable national regulations.
Compliance with these limits is the sole responsibility of the owner of the
spectrometer. If samples with toxic components must be measured,
further protective actions such as wearing breathing protection may be
necessary.
2.3.4 Sample weight
The weight of the sample to be measured must not exceed 15 kg (33 lbs).
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