T/SDG 004-2025 Active Group standards

T/SDG 004-2025 Cross-linked hollow glass pane

Publish Date: 2025-01-20 Implement Date: 2025-03-01 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: T/SDG 004-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: \nGlass products

Publish Date: 2025-01-20

Implement Date: 2025-03-01

Scope

Scope: This document specifies the classification, materials, requirements, and test methods, inspection rules, marking, packaging, transportation, and storage of cross-linked hollow glass. This document applies to cross-linked hollow glass used in building doors, windows, and curtain walls, as well as customized home decoration applications. For cross-linked hollow glass used in other fields such as refrigeration and transportation, refer to this document if no relevant product standards exist. Main technical content: 1. Clarifies the definition of "cross-linked hollow glass": Hollow glass that uses reactive thermoplastic spacer sealant as the spacer material and inner sealant, silicone structural sealant as the outer sealant, and inert gases such as argon and krypton filled in the cavity. 2. Specifies the appearance quality classification: Divided into Class A and Class B. The appearance quality requirements for cross-linked hollow glass vary across different application scenarios. Class A is recommended for customized home decoration doors and windows, and Class B is recommended for building doors, windows, and curtain walls. Other applications may refer to either classification as needed. 3. Specifies the "spacer material and inner sealant": Use reactive thermoplastic spacer sealant, which must meet the requirements of T/ZBH 024. 4. Specifies the "outer sealant": Use silicone structural sealant capable of cross-linking with the spacer material, which must meet the corresponding standard requirements. 5. Increases the "dew point" temperature: The dew point temperature of cross-linked hollow glass should be below -50°C. 6. Enhances the "water vapor sealing durability" indicator: After testing, the average water penetration index Iav should not exceed 0.18, and the water penetration index I should not exceed 0.22. 7. Specifies an initial inert gas content of ≥90% (by volume fraction). 8. Improves the "gas sealing durability" indicator: After th