QJ 3140.3-2001
QJ 3140.3-2001
Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration—Part 1:Determination of gold content—Gravimetry by sodium nitrite reduction
QJ 3140.3-2001
QJ 3140.3-2001
Reduction performance test of VOCs (volatile organic compound) and aldehyde by contamination reduction building material - the solid phase building material
QJ 3140.3-2001
Manganese ores and concentrates-Determination of total iron content-Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method
QJ 3140.3-2001
Manganese ores and concentrates-Determination of total iron content-Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method
QJ 3140.3-2001
Journal AWWA - The Effect of Sulfur-Based Reducing Agents and GAC Filtration on Chlorine Dioxide By-Products
QJ 3140.3-2001
Calculation method of carbon dioxide emission intensity from iron and steel production — Part 3: Steel plant with electric arc furnace (EAF) and coal-based or gas-based direct reduction iron (DRI) facility
QJ 3140.3-2001
Manganese ores and concentrates — Determination of total iron content — Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method
QJ 3140.3-2001
Water quality — Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) — Part 1: Method by enrichment in a liquid medium
QJ 3140.3-2001
QJ 3140.3-2001
Water quality-Detection and enumeration of the spores of sulfite-reducing anaerobes(clostridia)-Part 1:Method by enrichment in a liquid medium
QJ 3140.3-2001
Calculation method of carbon dioxide emission intensity from iron and steel production — Part 3: Steel plant with electric arc furnace (EAF) and coal-based or gas-based direct reduction iron (DRI) facility