Chinese National Standards

Test methods for compressive strength of spun high-strength concrete by core drilling

Issued

2026-05-25

Effective

2026-12-01

Chemical analysis method for stannous sulfate—Part 7：Determination of the contents of copper, lead, arsenic, iron, antimony, potassium, sodium, calcium and magnesium—Inductively coupled plasma optical emission spectrometry(ICP-OES)

Issued

2026-05-25

Effective

2026-12-01

Technical specification at the project level for assessment of greenhouse gas emission reductions—Ruminant feeding optimization

Issued

2026-05-25

Effective

2026-12-01

Dipped reinforcing materials—Test methods of moisture content

Issued

2026-05-25

Effective

2026-12-01

Dongzao jujube

Issued

2026-05-25

Effective

2026-12-01

Functional safety of safety instrumented system in oil and gas pipelines—Part 1：Assessment requirements

Issued

2026-05-25

Effective

2026-12-01

Chemical analysis methods and determination of physical performance of alumina—Part 24: Measurement of the angle of repose and the angle of flow

Issued

2026-05-25

Effective

2026-12-01

Irradiation processing practice for agricultural product—Part 6：Dehydrated vegetable

Issued

2026-05-25

Effective

2026-12-01

Methods for chemical analysis of magnesium and magnesium alloys—Part 4：Determination of manganese and zirconium content—Spectrophotometric method

Issued

2026-05-25

Effective

2026-12-01