17.120.20 - Flow in open channels

DB32/T 5337-2026 in English

Specifications for fixed acoustic Doppler current profiler on-line discharge monitoring technology

VALID

Issued on:2026-02-06 | Implemented on:2026-03-06

DB13/T 5993-2024 in English

VALID

Issued on:2024-08-12 | Implemented on:2024-09-12

DB4205/T 89-2021 in English

VALID

Issued on:2021-12-10 | Implemented on:2022-01-10

DB11/T 1061-2014 in English

SUPERSEDED

Issued on:2014-02-27 | Implemented on:2014-06-01

DB50/T 505-2013 in English

VALID

Issued on:2013-11-15 | Implemented on:2014-02-01

DB50/T 468-2012 in English

VALID

Issued on:2012-11-28 | Implemented on:2013-01-01

HJ/T 15-2007 in English

Technical requirement for environmental protection product Supersonic flowmeters of wastewater

SUPERSEDED

Issued on:2007-11-22 | Implemented on:2008-02-01

GB/T 13748.9-1992 in English

Magnesium and its alloys--Determination of nickel content--Dimethylyoxime spectrophotometric method

SUPERSEDED

Issued on:1992-01-01 | Implemented on:1993-06-01

GB/T 13748.8-1992 in English

Magnesium and its alloys--Determination of copper content-2, 9-dimethyl-1, 10-phenanthroline spectrophotometric method

SUPERSEDED

Issued on:1992-01-01 | Implemented on:1993-06-01

GB/T 13748.7-1992 in English

Magnesium and its alloys-Determination of beryllium content-Solochrome cyanine R Spectrophotometric method

SUPERSEDED

Issued on:1992-01-01 | Implemented on:1993-06-01