Standards GB - Chinese national standards - Page 4731

Photovoltaic system power conversion equipment—Design qualification and type approval

Standard published on 31.12.2025

PhotovoltaicPV) modules—Non-uniform snow load testing

Standard published on 31.12.2025

Photovoltaic modules—Transportation testing—Part 1: Transportation and shipping of module package units

Standard published on 31.12.2025

Ferrochromiumsilicochromiumnitrogen-bearing ferrochromium and high nitrogen ferrochromium—Determination of chromium content—Ammonium persulfate oxidation titrimetric method and potentiometric titration method

Standard published on 1.8.2025

Ferrochromium, silicochromium and nitrogen-bearing ferrochromium -Determination of phosphorus content - Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method

Standard published on 25.10.2007

Ferrochromium and silicochromium - Determination of carbon content - Infrared absorption method and gravimetric method

Standard published on 13.5.2008

Ferrochromium and silicochromium - Determination of sulfur content - The infrared absorption method and the combustion-titration method

Standard published on 13.5.2008

Ferrochromium, silicochromium, nitrogen-bearing ferrochromium and high nitrogen ferrochromium—Determination of silicon content—Silicomolybdenum blue spectrophotometric method, silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method

Standard published on 29.8.2025

Electrical performance requirements and test methods for electric double-layer capacitors used in hybrid electric vehicles

Standard published on 31.12.2025

In-vehicle traction battery durability requirements and test methods for electric vehicles—Part 1:Light-duty vehicles

Standard published on 31.12.2025