China Chemical Standards

Chemical analysis methods of mixed rare earth oxide of ion-absorption rare earth ore—Part 5：Determination of sulfate radical content

Issued

2026-07-30

Effective

2027-02-01

Determination of organochlorine pesticides in soil—Gas chromatography and gas chromatography-tandem mass spectrometry method

Issued

2026-07-30

Effective

2027-02-01

Diamond discs for dressing the chemical mechanical polishing (CMP) pad of semiconductor chips

Issued

2026-07-30

Effective

2027-02-01

Test method for quantitative measuring the corrosion degree of reinforcement in concrete by electrochemical synthetic measure

Issued

2026-07-30

Effective

2027-02-01

Chemically activated concrete for corrosion-resistant cement products

Issued

2026-07-02

Effective

2027-02-01

Chemical analysis methods for rare earth zirconium based compounds—Part 2: Determination of zirconium oxide and hafnium oxide total content—Mandelic acid gravimetric method

Issued

2026-07-02

Effective

2027-02-01

Greenhouse gases—Quantification methods and requirements for carbon footprint of products—Recycled chemical fibres

Issued

2026-07-02

Effective

2027-02-01

Chemical analysis methods for rare earth zirconium based compounds—Part 1: Determination of total rare earth content

Issued

2026-07-02

Effective

2027-02-01

Chemical analysis methods for rare earth residue and waste water—Part 6: Determination of thallium and vanadium contents—Inductively coupled plasma mass spectrometry

Issued

2026-07-02

Effective

2027-02-01