SEKUR 200 Serie Notice D'utilisation page 15

B3 Hydrogen sulphide(H
Hydrogen cyanide(HCN)
E3 Sulphur dioxide(SO
K3
It must be noted that the breakthrough time of the filters in actual use conditions could be longer than in laboratory test
conditions. There are filters protecting against more than one of the toxic gases above tabled (multi type filters). These filters show
all the markings (letters, colours, and number of the class) for each main field of application for which they are designed. For each
toxic gas please refer to the indications supplied for the appropriate single type filter.
Particle filters
Particle filters of higher class can be used (with the same mask) in environments where a lower class filter is required.
Filter class Type of mask
Half mask or quarter mask
P1
(low)
Full face mask or mouthpiece
Half mask or quarter mask
P2
(medium)
Full face mask or mouthpiece
Half mask or quarter mask
P3
(high)
Full face mask or mouthpiece
Particle filter should be replaced when an increase of inspiration resistance is noted by the user.
Combined filters
Combined filters offer protection against gases, particles and aerosols. The conditions and limits of use of these filters are the same
as those for gases and particle filters.
AX filters against low boiling organic vapours
A) Organic compounds with a boiling point below 65°C are divided into 4 groups:
Group
1
Group
2
Chlorine(Cl )
2
S)
2
)
2
Ammonia(NH )
3
Multiple of the
limit value TLV
4
4
10
15
30
400
Filtering Capacity According to EN 143:00/A1:2006
Filter Class
P1
P2
P3
Organic vapours with a TLV lower or equal to 10 ppm (parts per million)
Organic vapours with a TLV higher than a 10 ppm (parts per million)
10000
10000
10000
10000
10000
Not to be used against liquid aerosols, radioactive and cancerogenic
materials, microorganisms and active biochemical materials
Not to be used against radioactive materials, microorganisms (bacteria,
fungi and moulds) and active biochemical materials (enzymes, hormones)
Not to be used against radioactive materials, microorganisms and active
Filtering capacity%
Sodium chloride test
80
94
99,95
15
Observations- Limitations
Infrequent combination
biochemical materials
Paraffin oil test
80
94
99,95
30
60
35
30
60