GB/T 41439-2022 Active National standards

GB/T 41439-2022 Paper,board and pulps—Determination of pH of salted water extracts

GB/T 41439-2022 Paper,board and pulps—Determination of pH of salted water extracts

Publish Date: 2022-04-15 Implement Date: 2022-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 41439-2022

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Paper making

ICS Name: \nPulp

Publish Date: 2022-04-15

Implement Date: 2022-11-01

Pages: 7 pages

Scope

This document describes the method for determining the pH of aqueous extracts of paper, cardboard, and pulp. This document is applicable to paper, cardboard, and pulp.

Development Information

Word Count: 14 Thousand words Pages: 7 pages

Referenced Standards

GB/T 450-2002 Paper and board—Sampling for testing GB/T 450-2008 Paper and board—Sampling for testing and identification of machine and cross direction,wire side and felt side GB/T 740-2003 Pulps—Sampling for testing

Adopt standards

ISO 29681:2009

Related Standards

GB/T 3148-1982 Replaced

GB/T 3148-1982 Bleached sulphite reedpulp

Publish Date: 1982-07-23

GB/T 12659-1990 Replaced

GB/T 12659-1990 Pulps—Laboratory beating—Jokro mill method

Publish Date: 1990-12-28

GB/T 12660-1990 Replaced

GB/T 12660-1990 Pulps—Determination of drainability—"Canadian standard " freeness method

Publish Date: 1990-12-28

GB/T 13505-1992 Replaced

GB/T 13505-1992 Pure insulating pulp

Publish Date: 1992-06-12

GB/T 13506-1992 Replaced

GB/T 13506-1992 Bleached sulfite pulp

Publish Date: 1992-06-12

GB/T 13507-1992 Active

GB/T 13507-1992 Unbleached sulfite pulp

Publish Date: 1992-06-12