This standard specifies the method for measuring the maximum test safety clearance of flammable gases or vapors under normal temperature and pressure conditions. This standard applies to the classification of flammable gases or vapors and the selection of flameproof electrical equipment. Note: For liquids whose vapor pressure is very low at room temperature and cannot form the required vapor concentration, the ambient temperature should be 5°C higher than the temperature at which the required vapor pressure is generated.
GB 3836.11-1991 history
2022GB/T 3836.11-2022 Explosive atmospheres—Part 11:Material characteristics for gas and vapour classification—Test methods and data
2017GB/T 3836.11-2017 Explosive atmospheres—Part 11: Material characteristics for gas and vapourclassification—Test methods and data
2008GB 3836.11-2008 Explosive atmospheres.Part11:Equipment protection by flameproof enclosures"d"method of test for ascertainment of maximum experimental safe gap
1991GB 3836.11-1991 Electrical apparatus for explosive atmospheres--Method of test for ascertainment of maximum experimental safe gap