GB/T 20778-2006 Active National standards

GB/T 20778-2006 Evaluation of biodegradability of water treatment chemicals—Carbon dioxide evolution test

GB/T 20778-2006 Evaluation of biodegradability of water treatment chemicals—Carbon dioxide evolution test

Publish Date: 2006-12-29 Implement Date: 2007-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20778-2006

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods for water treatment agents

ICS Name: Water treatment agents

Publish Date: 2006-12-29

Implement Date: 2007-06-01

Pages: 16 pages

Scope

This standard specifies the evaluation method for the biodegradability of water treatment agents. This standard applies to water treatment agents (organic substances) that are easily soluble in water or slightly soluble in water under experimental conditions, non-volatile, and have no inhibitory effect on the test microorganisms at the experimental concentration.

Development Information

Word Count: 27 Thousand words Pages: 16 pages

Referenced Standards

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods

Adopt standards

ISO 9439:1999

Related Standards

GB/T 16632-1996 Replaced

GB/T 16632-1996 Determination of scale inhibition performance of water treatment agents—Calcium carbonate precipitation method

Publish Date: 1996-12-02

GB 17514-1998 Replaced

GB 17514-1998 Water treatment chemicals—Polyacrylamide

Publish Date: 1998-10-19

GB/T 10533-2000 Replaced

GB/T 10533-2000 Water treatment chemicals—Polyacrylic acid

Publish Date: 2000-07-31

GB/T 18175-2000 Replaced

GB/T 18175-2000 Determination of corrosion inhibition performance of water treatment agents—Rotation specimen method

Publish Date: 2000-07-31

GB 15892-2003 Replaced

GB 15892-2003 Water treatment chemical—Poly aluminium chloride

Publish Date: 2003-06-13

GB/T 22627-2008 Replaced

GB/T 22627-2008 Water treatment chemical—Poly aluminium chloride

Publish Date: 2008-12-23