GB 2626-2019 Translated English of Chinese Standard. GB2626-2019: Respiratory protection - Non-powered air-purifying particle respirator
https://www.chinesestandard.net, 21 de mar. de 2020 - 57 páginas
This standard specifies the classification and marking, technical requirements, testing methods, identification of non-powered air-purifying particle respirator. This standard applies to non-powered air-purifying respirator that protects against particle. This standard does not apply to respirators that protect against harmful gases and vapors. It does not apply to the respirators for hypoxic environments, underwater operations, escape, fire-fighting.
Classification and marking
accuracy add requirements add the requirements air tightness anti-fogging Appendix applicable arithmetic mean breathing hose breathing resistance cleaning or disinfection count median diameter dead space deform different size numbers disposable facepieces exhalation valve fluctuation bandwidth limit GB/T geometric standard deviation head harness humidity pretreatment inhalation resistance L/min loading as specified mass median aerodynamic mass median diameter median aerodynamic diameter meet the requirements method of 6.4 milligram MMAD NaCl particles particle detector particle size distribution penetration Perform test Practical performance pretreated in 6.2.1 quantity and requirements replaceable facepiece replaceable filter elements Replaceable half facepiece requirements of Table respirator facepiece sample as pretreated Sample quantity samples All samples sampling tube Schematic diagram simulant sodium chloride technical requirements test environment test head mold test in accordance tested facepiece tested sample testing chamber Testing conditions testing device Testing equipment total inward leakage type filter elements Type of facepiece untreated samples valve’s