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ČSN - Czech national standards
Page 4225
ČSN EN 50055 (01/09/1999) Withdrawn
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group I apparatus indicating up to 5 % (v/v) methane in air
Available design: Print design
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ČSN EN 50056 (01/09/1999) Withdrawn
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for group I apparatus indiciting up to 100 % (v/v) methane
Available design: Print design
from 186.00 CZK more info
ČSN EN 50057 (01/09/1999) Withdrawn
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indiciting up to 100 % lower explosive limit
Available design: Print design
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ČSN EN 50058 (01/09/1999) Withdrawn
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indiciting up to 100 % (v/v) gas
Available design: Print design
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ČSN EN 61779-1 (01/02/2001) Withdrawn
Electrical apparatus for the detection and measurement of flammable gases - Part 1: General requirements and test methods
Available design: Print design
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ČSN EN 61779-2 (01/02/2001) Withdrawn
Electrical apparatus for the detection and measurement of flammable gases - Part 2: Performance requirements for group I apparatus indicating a volume fraction up to 5 % methane in air
Available design: Print design
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ČSN EN 61779-3 (01/03/2001) Withdrawn
Electrical apparatus for the detection and measurement of flammable gases - Part 3: Performance requirements for group I apparatus indicating a volume fraction up to 100 % methane in air
Available design: Print design
from 120.00 CZK more info
ČSN EN 61779-4 (01/03/2001) Withdrawn
Electrical apparatus for the detection and measurement of flammable gases - Part 4: Performance requirements for group II apparatus indicating a volume fraction up to 100 % lower explosive limit
Available design: Print design
from 120.00 CZK more info
ČSN EN 61779-5 (01/03/2001) Withdrawn
Electrical apparatus for the detection and measurement of flammable gases - Part 5: Performance requirements for group II apparatus indicating a volume fraction up to 100 % gas
Available design: Print design
from 120.00 CZK more info
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