GB 31040-2014
Limit of residual formaldehyde from the concrete admixtures (English Version)

Standard No.

GB 31040-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 31040-2014

Scope

This standard specifies the limit of residual formaldehyde in concrete admixtures. This standard applies to all kinds of concrete admixtures for construction with indoor functions, but not for concrete admixtures for bridges, roads and other outdoor projects.

GB 31040-2014 Referenced Document

• GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update
• GB/T 6682 Water for analytical laboratory use.Specification and test methods
• GB/T 8075-2005 Definition,classification,nomenclature and terms of concrete admixtures
• GB/T 8077 Test method for homogeneity of concrete admixtures*， 2023-12-28 Update

GB 31040-2014 history

• 2014 GB 31040-2014 Limit of residual formaldehyde from the concrete admixtures