IEC 61779-4:1998
Collections
International IEC standards
Publication date
April 1998
Number of pages
7 p.
Reference
IEC 61779-4:1998
Print number
1
IEC 61779-4:1998
April 1998
International standard
Cancelled
Electrical apparatus for the detection and measurement of flammable gases - Part 4: Performance requirements for group II apparatus indicating up to 100% lower explosive limit
Specifies requirements for group II (as defined in part 1) portable, transportable and fixed apparatus for the detectino and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. group I).This standard is restricted to apparatus intended for the detection and measurement of combustible gas or vapour concentrations with air up to 100% lower explosive limit (LEL).
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Electrical apparatus for the detection and measurement of flammable gases - Part 4: Performance requirements for group II apparatus indicating up to 100% lower explosive limit
Specifies requirements for group II (as defined in part 1) portable, transportable and fixed apparatus for the detectino and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. group I). This standard is restricted to apparatus intended for the detection and measurement of combustible gas or vapour concentrations with air up to 100% lower explosive limit (LEL).
Specifies requirements for group II (as defined in part 1) portable, transportable and fixed apparatus for the detectino and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. group I). This standard is restricted to apparatus intended for the detection and measurement of combustible gas or vapour concentrations with air up to 100% lower explosive limit (LEL).
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Standard replaced by
(1)
IEC 60079-29-1:2007
August 2007
International standard
Cancelled
Explosive atmospheres - Part 29-1: Gas detectors - Performance requirements of detectors for flammable gases
Specifies general requirements for construction, testing and performance, and describes the test methods that apply to portable, transportable and fixed apparatus for the detection and measurement of flammable gas or vapour concentrations with air. The apparatus, or parts thereof, are intended for use in potentially explosive atmospheres and in mines susceptible to firedamp. This first edition of IEC 60079-29-1 cancels and replaces the first edition of IEC 61779-1 to IEC 61779-5:1998 series and constitutes a technical revision with numerous changes with respect to the previous edition.
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