GB/T 46320-2025 Active National standards

GB/T 46320-2025 Imaging materials—Reflection colour photographic prints—Method for testing stability under low humidity conditions

Publish Date: 2025-10-05 Implement Date: 2026-05-01 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: GB/T 46320-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Photosensitive materials

ICS Name: Photographic paper, film, and darkroom trays

Publish Date: 2025-10-05

Implement Date: 2026-05-01

Pages: 16 pages

Scope

This document describes the experimental method for evaluating the changes in the appearance of reflective color photographic images caused by exposure to low relative humidity.
The observed changes are mainly related to the yellowing of the substrate. Other physical damage observed related to humidity or humidity cycles, such as curling, wrinkling, cracking, or delamination, are also within the scope of this experimental method.