GB/T 4840.1-1999
Replaced
GB/T 2378-2025
Active
National standards
GB/T 2378-2025 Acid dyes—Determination of shade and relative strength
GB/T 2378-2025 Acid dyes—Determination of shade and relative strength
Basic Information
Standard Code:
GB/T 2378-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Basic standards and general methods for dyes
ICS Name:
Comprehensive Chemical Products
Publish Date:
2025-08-29
Implement Date:
2026-03-01
Pages:
12 pages
Scope
This document describes the methods of determining the color and intensity of acid dyes using dyeing methods and solution colorimetry.
This document is applicable to the determination of the color and intensity of acid dyes. The dyeing method is suitable for acid dyes used to dye textiles, while the solution colorimetry method is suitable for acid dyes with high purity or those used in daily chemical products and other applications.
Development Information
Replace the following standards
Referenced Standards
Related Standards
GB/T 4840.2-1999
Replaced
GB/T 4840.2-1999 o-Nitroaniline
GB/T 4840.3-1999
Replaced
GB/T 4840.3-1999 m-Nitroaniline
GB 16483-2000
Replaced
GB 16483-2000 General rules for preparation of chemical safety data sheet
GB/T 6678-2003
Active
GB/T 6678-2003 General principles for sampling chemical products
GB/T 6679-2003
Active