GB 20936.1-2007
Electrical apparatus for the detection and measurement of flammable gases- Part 1: General requirement and test methods (English Version)

Standard No.

GB 20936.1-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2018-07

Replace By

GB/T 20936.1-2017

Latest

GB/T 20936.1-2022

Scope

This part specifies the general requirements for the structure, test and test methods of portable, mobile and fixed flammable gas or vapor detection equipment. Among them, the performance requirements of Class II detection equipment that can reach 100% of the lower explosion limit are specified separately in GB 15322. These detection equipment or its components can be used in potentially explosive gas atmospheres (see 3.1.8) and mines prone to gas production. This standard is supplemented by the following standards with specific requirements for the performance of various types of electrical equipment. GB 20936.2 "Electrical Equipment for Combustible Gas Detection Part 2: Performance Requirements for Class I Detectors to Display Methane Volume Content in Air up to 5%" GB 20936.3 "Electrical Equipment for Combustible Gas Detection Part 3: Display Methane in Air Performance Requirements for Class I Detectors with Volume Content up to 100%" GB 20936.4 "Electrical Equipment for Combustible Gas Detection Part 4: Performance Requirements for Class II Equipment Displaying Gas Volume Content up to 100%" 1.2 When the manufacturer declares that the detection equipment Where constructions have special characteristics or properties exceeding the minimum requirements of this standard, this standard is applicable, provided that such claims are subject to verification. If necessary, some test procedures should be extended or added to verify the performance declared by the manufacturer. Additional tests shall be agreed between the manufacturer and the testing laboratory. 1.3 This part applies to flammable gas detection equipment with signal indication, alarm or other output functions. These detection equipment are used to issue warnings of explosion hazards and trigger linkage protection devices automatically or manually. 1.4 This standard applies to aspirating detection equipment with a built-in sampling system for commercial and industrial safety applications. 1.5 This section does not apply to external sampling systems, laboratory equipment, scientific research equipment and equipment used only for process control.

GB 20936.1-2007 Referenced Document

• GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres-Part 1: General requirements
• GB 3836.13-1997 Electrical apparatus for explosive gas atmospheres. Part 13: Repair and overhaul for apparatus used in explosive gas atmospheres
• GB 3836.14-2000 Electrical apparatus for explosive gas atmospheres. Part 14: Classification of hazardous areas
• GB 3836.15-2000 Electrical apparatus for explosive gas atmospheres. Part 15: Electrical installation in hazardous areas (other than mines)
• GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres-Part 2: Flameproof enclosure "d"
• GB 3836.3-2000 Electrical apparatus for explosive gas atmospheres-Part 3:Increased safety "e"
• GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres. Part 4: Intrinsic safety“i”
• GB 3836.5-2004 Electrical apparatus for explosive gas atmosphere-Part 5:Pressurized enclosures"p"
• GB 3836.6-2004 Electrical apparatus for explosive gas atmospheres-Part 6:Oil-immersion"o"
• GB 3836.7-2004 Electrical apparatus for explosive gas atmospheres-Part 7:Power filling"q"
• GB 3836.8-2003 Electrical apparatus for explosive gas atmospheres--Part 8: Type of protection “n”
• GB 3836.9-2006 Electrical apparatus for explosive gas atmospheres Part 9: Encapsulation "m"
• GB/T 2900.56-2002 Electrotechnical terminology--Automatic control
• GB/T 5163-2006 Sintered metal materials,excluding hardmetals.Permeable sintered metal materials.Determination of density,oil content,and open porosity
• GB/T 5249-1985 Permeable sintered metal materials--Determination of bubble test pore size
• GB/T 5274 Gas analysis.Preparation of calibration gas mixtures.Gravimetric method*， 2008-06-18 Update

GB 20936.1-2007 history

• 2022 GB/T 20936.1-2022 Gas detectors for explosive atmospheres Part 1: Performance requirements for combustible gas detectors
• 2017 GB/T 20936.1-2017 Gas detectors for explosive atmospheres—Part 1: Performance requirements of detectors for flammable gases
• 2007 GB 20936.1-2007 Electrical apparatus for the detection and measurement of flammable gases- Part 1: General requirement and test methods

GB 20936.1-2007 Electrical apparatus for the detection and measurement of flammable gases- Part 1: General requirement and test methods was changed to GB/T 20936.1-2017 Gas detectors for explosive atmospheres—Part 1: Performance requirements of detectors for flammable gases.

GB 20936.1-2007 -All Parts