D.
A test may become unfair or the chemical you're using may cause a chemical reaction
There is no such law. Only the totality of energy must be conserved in a chemical reaction.
For example a mask or a protection shield.
Yes, it is true, it is a protection factor.
Yes, you can protect it with an special protection system as a CO2 system or you can use chemical dry powder.
D.
during chemical or biological warfare agent contamination
During chemical or biological warfare agent contamination.
It provides 24 hour continuous eye and respiratory protection in nuclear and chemical environments
Chemical contamination can render the affected foods less safe.
Respitory protection & Chemical protective garments
A clean stainless steel bowl will not cause chemical contamination, which is why you use them.
initial follow-on
If the interior of the tin is coated with plastic a very rare possible contamination is avoided.
If the interior of the tin is coated with plastic a very rare possible contamination is avoided.
chemical
So that there is no cross contamination.