GB/T 46757-2025

Upcoming

Pulps—Kraft black liquor—Determination of residual alkali(potentiometric titration)

纸浆 硫酸盐法黑液 残碱的测定(电位滴定法)

Standard Type
GBT
ICS
85.040
CCS
Y 31
Status
Upcoming
Issue Date
2025-12-02
Implementation
2026-07-01
Centralized Committee
中国轻工业联合会
Issuing Authority
国家市场监督管理总局、国家标准化管理委员会

Application Summary AI generated

This standard specifies a potentiometric titration method for determining the residual alkali content in kraft black liquor, a byproduct of the sulfate pulping process. It is applied in the pulp and paper industry for quality control and process optimization, particularly in the chemical recovery cycle of kraft mills. The method ensures accurate measurement of residual alkali to monitor cooking efficiency and guide black liquor evaporation and recovery operations.

Related Standards

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.