T/CDIA 0094-2025 Active Group standards

T/CDIA 0094-2025 Permanent violet RL Crude

Publish Date: 2025-10-20 Implement Date: 2025-11-20 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CDIA 0094-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Comprehensive Chemical Products

Publish Date: 2025-10-20

Implement Date: 2025-11-20

Scope

This document specifies the requirements, sampling, testing methods, inspection rules, and marking, packaging, transportation, and storage for Eriochrome Purple RL crude products. This document applies to Eriochrome Purple RL crude products made by the condensation and cyclization of 3-amino-N-ethylcarbazole with tetrachlorobenzoquinone. These crude products are mainly used in the preparation of C.I. Pigment Violet 23 and Dye Direct Sunfast Blue 108 products. This document stipulates the requirements, sampling, testing methods, inspection rules, and marking, packaging, transportation, and storage for Eriochrome Purple RL crude products. It sets out inspection items such as color, content, volatile matter at 105°C, water-soluble substances, and the pH value of water suspensions.