GB15763.2-2005
Safety glazing materials in building-Part2:Tempered glass
建筑用安全玻璃 第2部分：钢化玻璃
GB 15763.2-2005 is a current mandatory Chinese national standard for Safety glazing materials in building-Part2:Tempered glass. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Mar 1, 2006.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to building safety glazing materials, specifically tempered glass produced through heat treatment processes. It is primarily designed for architectural applications but can be referenced for non-building uses such as industrial equipment and furniture if no specific product standard exists. The standard classifies products by production method (vertical and horizontal tempering) and shape (flat and curved).
Technical requirements
The standard specifies comprehensive requirements for tempered glass, categorized into dimensions/appearance, mandatory safety performance, and general performance. Dimensional requirements cover edge length tolerances, thickness deviations, diagonal differences, and specific geometric constraints for drilled holes. Manufacturers must strictly adhere to the positional rules for holes relative to glass edges and corners. The mandatory safety performance requirements are critical for compliance. This section dictates the acceptable criteria for impact resistance, fragment status, and shotbag impact performance. These safety clauses are legally binding and must be strictly met to prevent catastrophic failure in architectural applications. General performance requirements include limits on surface stress (which must meet a specific minimum MPa threshold) and thermal shock resistance. The standard also details visual quality tolerances for defects like edge chips, scratches, and clamp marks. Compliance with both general and safety parameters is verified through strict batch sampling rules.
Testing methods
The standard outlines specific testing procedures to verify compliance. Dimensional verification uses steel straightedges and micrometers. Impact resistance is tested by dropping a standard steel ball from a specified height onto the glass sample. The fragment status test involves breaking the glass with a pointed hammer and counting fragments within a defined area. The shotbag impact test uses a pendulum-mounted weighted bag dropped from incremental heights to simulate human impact. Additionally, surface stress is measured using specialized equipment per GB/T 18144, and thermal shock resistance is evaluated by subjecting samples to extreme temperature variations (e.g., oven heating followed by ice water immersion).
FAQs
What products are regulated under GB 15763.2-2005?
It applies to building safety glazing made via heat treatment processes. It can also be referenced for non-building applications like industrial equipment and furniture if no specific product standard exists. It classifies products into vertical and horizontal tempered glass.
Are there any updates from the previous version of GB 15763.2-2005?
Yes, it replaces GB/T 9963-1998 and parts of GB 17841-1999. Key updates include modified fragment test methods, added requirements for surface stress and thermal shock, and new specifications for glass hole dimensions. Manufacturers must transition to the updated requirements to maintain compliance.
How does GB 15763.2-2005 differ from international ISO standards?
It aligns closely with international safety principles but incorporates specific Chinese mandatory safety performance criteria, such as the shotbag impact test and precise fragment count rules. Overseas manufacturers must verify compliance with these specific local thresholds before exporting to China.
The summary above provides a high-level overview of GB 15763.2-2005. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 15763.2-2005 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- Q33
- ICS
- 81.040
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology
Relationships
Replaces:GB/T 9963-1998
Partially replaces:GB 17841-1999