Standards GB - Chinese national standards - Page 5288

Pure nitrogen,high purity nitrogen and ultra pure nitrogen

Standard published on 29.8.2025

Double end studs--bm=1.25d

Standard published on 6.2.1988

Oxygen supplies for medicine and aircraft breathing

Standard published on 21.6.2009

Oxygen supplies for medicine and aircraft breathing
Execute Date: may 2026

Standard published on 31.10.2025

Gas analysis—Determination of the contents of trace carbon monoxide, carbon dioxide and hydrocarbon in gases—Gas chromatography with flame ionization detector

Standard published on 29.8.2025

Micrographics - Test target for checking optical density of negative microimages in microfilming

Standard published on 16.7.2008

Double end studs--bm=1.5d

Standard published on 6.2.1988

Environmental conditions and testing procedures for nuclear instrumentation

Standard published on 24.7.1998

In-core instrumentation for neutron fluence rate measurements in nuclear reactors

Standard published on 18.7.2008

Calibration for alpha, beta and alpha/beta surface contamination meters and monitors

Standard published on 2.7.2008