The filter canister is designed to provide long term protection against a wide range of toxic gases and vapours.
It provides effective protection against organic gases and vapours of organic substances with initial boiling point above 65°C (eg., benzene, cyclohexane, decane, styrene, toluene, trichlorethylene, tetrachloromethane, xylene, gasoline, ethanol, kerosene, diesel, mineral turpentine, ethylene glycol, methyl isobutyl ketone, isobutanol, etc.), inorganic gases and vapours (e.g., fluorine, chlorine, hydrogen sulfide, hydrogen cyanide, hydrogen bromide, ozone, etc.), acid gases and vapors (sulfur dioxide), ammonia, and amines.
The filter canister does not provide protection against aerosols!
TYPE AND CLASS |
|||
|
A2 |
Vapors of organic substances (solvents) with a boiling point above 65°C |
E2 | Acid gases and vapours |
| B2 | Inorganic gases and vapours | K2 | Ammonia a amines |
Breakthrough time of a filter canister is tested according to EN 14387 at humidity 70% and flow rate 30 l/min, which is equivalent to the volume of air per minute used by an average person carrying out medium-heavy work. The approximate life time (usage time) of a filter may, under normal conditions, calculated by comparing the concentration at the workplace and the minimum Dynamic Adsorption Capacity (DAC) for the filter.
|
Challenge agent |
Challenge concentration (ppm) | Minimální doba ochrany (min.) | DSK (g) | ||
|
A2 |
Cyclohexane |
C6H12 | 5000 | 35 | 18,375 |
|
B2 |
Chlorine |
Cl2 | 5000 | 20 | 9,000 |
|
Hydrogen sulphide |
H2S | 5000 | 40 | 8,520 | |
|
Hydrogen cyanide |
HCN | 5000 | 25 | 4,200 | |
| E2 |
Sulphur dioxide |
SO2 | 5000 | 20 | 7,980 |
| K2 |
Ammonia |
NH3 | 5000 | 40 | 4,200 |