Safety glazing materials in building—Part 2:Tempered glass

Safety glazing materials in building—Part 2:Tempered glass

1 Scope

This part of GB 15763 specifies the classification, technical requirements, test methods and inspection rules of tempered glass for buildings made by heat treatment process.

This part of GB 15763 is applicable to tempered glass for buildings made by heat treatment process. For tempered glass used outside construction (such as industrial equipment, furniture, etc.), if there is no corresponding product standard, this standard can be used as a reference according to its product characteristics.

2 Normative references

The terms in the following documents become the terms of this section by reference in this section. For dated references, all subsequent amendments (excluding errata content) or revisions do not apply to this standard. However, parties to agreements based on this section are encouraged to study whether the latest versions of these documents can be used , for undated references, the latest version applies to this section.

GB 9962-1999 laminated glass

GB 11614 float glass

GB/T 18144 Glass Stress Test Method

3 Definition and classification

3.1 Definition

Tempered glass: glass after heat treatment process. It is characterized in that a compressive stress layer is formed on the glass surface, the mechanical strength and thermal shock resistance are improved, and it has a special fragment state.

3.2 Classification

3.2.1 According to the production process, tempered glass can be divided into:

Vertical tempered glass: Tempered glass produced by hanging with clamps during the tempering process.

Horizontal tempered glass: Tempered glass produced by horizontal roller support during the tempering process.

3.2.2 Tempered glass is classified by shape into flat tempered glass and curved tempered glass.

4 Glass used in tempered glass

The quality of the glass used in the production of tempered glass shall meet the requirements of the corresponding product standards. For the glass used in the production of tempered glass with special requirements, the quality of the glass shall be determined by both the supplier and the buyer.

5 Requirements

The properties and test methods of tempered glass shall comply with the provisions of the corresponding items in Table 1. Among them, safety performance requirements are mandatory requirements.

5.1 Dimensions and their tolerances

5.1.1 Permissible deviation of side length of rectangular flat tempered glass

The allowable deviation of the side length of rectangular flat tempered glass shall comply with the provisions in Table 2.

5.1.2 Diagonal difference of rectangular flat tempered glass

The diagonal difference of rectangular plane tempered glass shall comply with the provisions in Table 3.

5.1.3 Dimensions and tolerances of tempered glass in other shapes

Negotiated by the supply and demand sides.

5.1.4 Edge processing

The shape and quality of edge processing shall be agreed upon by both parties.

5.1.5 Round hole

5.1.5.1 Overview

This article is only applicable to tempered glass with a nominal thickness not less than 4 mm. The processing quality of the edge of the round hole is agreed upon by the supplier and the buyer.

5.1.5.2 Aperture

The pore diameter is generally not smaller than the nominal thickness of the glass, and the allowable deviation of the pore diameter shall comply with the provisions in Table 4. The permissible deviation of the hole diameter of the hole smaller than the nominal thickness of the glass shall be agreed between the supplier and the buyer.