China Chemical Standards

Methods for chemical analysis of magnesium and magnesium alloys—Part 9: Determination of iron and silicon content—Spectrophotometric method

Issued

2026-05-25

Effective

2026-12-01

Chemical analysis methods of rare earth ferrosilicon alloys and rare earth magnesium ferrosilicon alloys—Part 2: Determination of calcium, magnesium, manganese, aluminum, barium, antimony, bismuth, strontium, phosphorus and titanium contents

Issued

2026-05-25

Effective

2026-12-01

Methods for chemical analysis of magnesium and magnesium alloys—Part 3：Determination of lithium,silver content—Flame atomic absorption spectrometry method

Issued

2026-05-25

Effective

2026-12-01

Methods for chemical analysis of tungsten concentrates—Part 11：Determination of impurity element contents—Inductively coupled plasma atomic emission spectrometry

Issued

2026-05-25

Effective

2026-12-01

Chemical analysis methods and determination of physical performance of alumina—Part 5：Determination of sodium oxide and potassium oxide contents

Issued

2026-05-25

Effective

2026-12-01

Leather and fur—Chemical tests—Determination of phthalate content

Issued

2026-05-25

Effective

2026-12-01

Methods for chemical analysis of magnesium and magnesium alloys—Part 22：Determination of thorium content

Issued

2026-05-25

Effective

2026-12-01

Chemical analysis methods for rare earth residue and waste water—Part 7: Determination of thorium and uranium contents—Inductively coupled plasma mass spectrometry

Issued

2026-05-25

Effective

2026-12-01

Chemical analysis methods and determination of physical performance of alumina—Part 11: Determination of manganese oxide and magnesium oxide contents—Flame atomic absorption spectrometric method

Issued

2026-05-25

Effective

2026-12-01