Safe requirements of heat resistant glassware
1 Scope
This standard specifies the technical requirements and test methods for heat resistant glassware.
This document is applicable to all kinds of heat resistant glassware.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 4548 Test method and classification for hydrolytic resistance of the interior surfaces of glass containers
GB/T 6579 Laboratory glassware - Thermal shock and thermal shock endurance test methods
GB/T 6580 Glass - Resistance to attack by a boiling aqueous solution of mixed alkali method of test and classification
GB/T 6581 Glass resistance to attack by hydrochloric acid at 100°C flame emission method or flame atomic absorption spectrometric method
GB/T 6582 Glass - Hydrolytic resistance of glass grains at 98°C - Method of test and classification
GB/T 12416.2 Glass - Hydrolytic resistance of glass grains at 121°C - Test method and classification
GB/T 15726 Glassware - Stress examination methods
GB/T 15728 Glass resistance to attack by a boiling hydrochloric acid gravimetric method of test and classification
GB/T 16920 Glass - Determination of coefficient of mean linear thermal expansion
GB/T 28194 Glass - Double liner method for determination of thermal expansion coefficient
GB/T 28209 Methods for chemical analysis of borosilicate glasses
GB 31604.24 National food safety standard - Food contact materials and articles - Determination of cadmium migration
GB 31604.34 National food safety standard - Food contact materials and articles - Determination of lead and its migration
GB/T 35595 Glass containers - Testing methods for arsenic and antimony release
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
blown heat resistant glassware
heat resistant appliance made of borosilicate glass blown by machine or manually
Note: for example, glass cooker, coffee machine glass, coffee pot, refrigerated bottle, tea set, beverage cup, etc.
3.2
pressed heat resistant glassware
heat resistant appliance made of borosilicate glass pressed by machine or manually
Note: for example, heat resistant glass pots, cups and plates used in microwave ovens, induction cookers, etc.
4 Technical requirements
The safety technical requirements for heat resistant glassware shall meet those specified in Table 1.
Table 1 Technical requirements
Forword
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
