3) Radioactive iodine and its organic compound – methyliodide¹³¹ acc. to standard DIN 58621
The filter canister in connection with a suitable respirator or PAPR provides protection against solid and liquid particles, pepper spray (OC), smoke-producing substances, radioactive particles, bacteria and rickettsia, fungi, toxins, viruses, riot control agents (lachrymators, sternutators, vomiting agents), blister agents (vesicants), choking agents, blood agents, nerve agents, incapacitants, herbicides, pesticides, and TIC, such as bromoacetone, CS, CR, CN, CNC, CNS, CA substances, organic compounds of arsenic – diphenyldichlorarsine – CLARK I (DA), diphenylcyanoarsine – CLARK II (DC), adamsite (DM), diphenyldichlorarsine (DA), ethyldichlorarsine (ED), methyldichlorarsine (MD), mustard gas (H), sulphur mustard gas (HD), T-mustard gas, Q-mustard gas, nitrogen mustard gases (HN1, HN2, HN3), lewisite (L), mixed mustard gas (H-L), phosgene oxime (CX), phosgene (CG), diphosgene(DP), chloropicrin (PS), hydrogen cyanide (AC), cyanogen chloride (CK), arsine (SA), G-agents: sarin (GB), cyclosarin (GF), soman (GD), tabun (GA), IVA (GV), V-agents: VX, VR, VE, VG (amiton), VM and toxic industrial chemicals such as: fumes of organic or inorganic acids, hydroxides, organic solvents with a boiling point above 65° C, ammonia, amines, inorganic and acid gases, agricultural chemical combustion gases, other toxic substances, e.g. benzene, toluene, vinyl chloride, fluorine, hydrogen fluoride, sulphur oxides, chloroacetic acid, aldehydes, mixtures of inorganic acids, and organic substances, mercury vapors, radioactive iodine, organic compounds of iodine (Iodomethane, 129, 131), radioactive particles, etc.
| TESTING GAS |
CONCENTRATION OF TESTING GAS |
BREAKTHROUGH TIME IN MINUTES EN |
NBC-77 SOF |
DAC IN GRAMS NBC-77 SOF |
| PPM |
MG/I |
| A2 |
Cyclohexane |
C₆H₁₂ |
5000 |
17.5 |
35 |
39 |
20.475 |
| B2 |
Chlorine |
Cl₂ |
5000 |
15 |
20 |
45 |
20.250 |
|
Hydrogen Sulphide |
H₂S |
5000 |
7.1 |
40 |
>80 |
>17.400 |
|
Hydrogen Cyanide |
HCN |
5000 |
5.6 |
25 |
50 |
8.400 |
| E2 |
Sulphur Dioxide |
SO₂ |
5000 |
13.3 |
20 |
25 |
9.975 |
| K2 |
Ammonia |
NH₃ |
5000 |
3.5 |
40 |
50 |
5.250 |
| Hg |
Mercury |
Hg |
—– |
13 mg/m³ |
100 hours |
>170 hours |
>3.900 |
| SX |
Cyanogen chloride |
CICN |
2500 |
6.28 |
20 |
25 |
4.710 |
|
Chloropicrin |
CCI₃NO₃ |
5000 |
33.55 |
20 |
44 |
44.286 |
|
Phosgene |
COCl₃ |
5000 |
20.24 |
20 |
>77 |
>47.058 |
| REACTOR |
Methyloidide₁₃₁ |
CH₃I |
– |
– |
2 hours |
>2 hours |
– |
GAS MASK FILTER LIFETIME:
Breakthrough time of a gas mask filter is tested according to EN 14387+A1 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 lifetime (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.
GAS MASK FILTER STORAGE AND MAINTENANCE:
Each NBC-77 SOF gas mask filter is sealed in a plastic bag by the manufacturer. Store the filters unopened in a clean place at even temperature, most appropriate at -5 to +30°C and relative humidity below 80%. Sealed filters tolerate also conditions of -30 to +50°C and RH below 95%. The storage period (month and year) for filters is marked on the filter label. Do not try to regenerate the filters. Never clean the filters with compressed air or compressed water.
