GB/T 7962.13-2025 Active National standards

GB/T 7962.13-2025 Test methods of colourless optical glass—Part 13:Thermal conductivity

Publish Date: 2025-06-30 Implement Date: 2026-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 7962.13-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Optoelectronic devices

ICS Name: \nGlass Composite

Publish Date: 2025-06-30

Implement Date: 2026-01-01

Pages: 16 pages

Scope

This document describes the method for determining the thermal conductivity of colorless optical glass.
This document is applicable to the testing of the thermal conductivity of colorless optical glass. The flash method is suitable for dynamic testing of the thermal conductivity and heat diffusion coefficient at test temperature points, and the protective heat plate method is suitable for steady-state testing of the thermal conductivity at a certain stable temperature difference. The testing of the thermal conductivity of other glasses should be conducted with reference to this document.