GB/T 44365-2024 Active National standards

GB/T 44365-2024 Determination of 6-methylcoumarin, dihydrocoumarin, 7-methylcoumarin, 7-methoxycoumarin, 7-ethoxy-4-methylcoumarin in toothpastes—High performance liquid chromatography

Publish Date: 2024-08-23 Implement Date: 2025-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 44365-2024

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Toothpaste, soap, and detergent

ICS Name: Surfactants and other auxiliary agents

Publish Date: 2024-08-23

Implement Date: 2025-03-01

Pages: 20 pages

Scope

This document describes the principles, reagents and materials, instrumentation, experimental procedures, result calculation, recovery rate and precision, and allowable deviations of the high-performance liquid chromatography method for determining 6-methylcoumarin, 2-hydroxycoumarin, 7-methylcoumarin, 7-methoxycoumarin, and 7-ethoxy-4-methylcoumarin in toothpaste.
This document is applicable to the determination of 6-methylcoumarin, 2-hydroxycoumarin, 7-methylcoumarin, 7-methoxycoumarin, and 7-ethoxy-4-methylcoumarin in toothpaste.

Development Information

Word Count: 21 Thousand words Pages: 20 pages

Referenced Standards

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

Related Standards

GB/T 5327-1985 Replaced

GB/T 5327-1985 Surface active agents—Terms

Publish Date: 1985-08-29

GB/T 5328-1985 Active

GB/T 5328-1985 Surface active agents—Simplified classification

Publish Date: 1985-08-29

GB/T 5553-1985 Replaced

GB/T 5553-1985 Surface active agents—Textile auxiliaries—Method for determination of water repellency of waterprooting agents—Hydrostatic pressure test

Publish Date: 1985-10-29

GB/T 5554-1985 Replaced

GB/T 5554-1985 Surface active agents—Textile auxiliaries—method for determination of water repellency of waterprooting agents—Spray test

Publish Date: 1985-10-29

GB/T 6365-1986 Replaced

GB/T 6365-1986 Surface active agents—Determination of free alkalinity or free acidity—Titrimetric method

Publish Date: 1986-05-08

GB/T 6369-1986 Replaced

GB/T 6369-1986 Surface active agents—Measurement of emulsifying power—Colorimetric method

Publish Date: 1986-05-08