This document gives information on the classification of domestic devitroceram products, specifies the technical requirements, inspection rules, packaging, marking, transportation and storage of domestic devitroceram, and describes the corresponding test methods.
This document is applicable to the production, inspection and sales of domestic devitroceram products.
This document does not apply to domestic devitroceram cookware.
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 2828.1-2012 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
GB/T 3298 Test method for resistance to thermal shock of domestic ceramic ware
GB/T 3300 Standard test method for deformation measurement of domestic ceramic ware
GB/T 3301 Test method for determination of specification allowance and size of defects of domestic ceramic ware
GB/T 3302 Rules of package, mark, transport and reserve for domestic ceramic ware
GB/T 3303 Terminology of defects for domestic ceramics
GB/T 5000 Terminology for domestic ceramics
GB/T 27587 Test method for the resistance to microwave heating of domestic ceramicware
GB/T 32680 Test method for mechanical dishwashing resistance of domestic ceramic ware
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3303 and GB/T 5000 and the following apply.
3.1
devitroceram
a class of ceramic composites consisting of crystalline phase and glass phase
Note: It is generally obtained by properly heating the glass to produce a sufficient amount of crystalline phase in the glass.
[Source: GB/T 5000-2018, 5.28]
3.2
domestic devitroceram
devitroceram product for daily use
4 Product classification
4.1 Products may be classified into dishes, bowls, cups, pots and other utensils by purpose.
4.2 Products may be classified into small, medium, large and special types by size, and their size range is shown in Table 1.
Contents Foreword 1 Scope 2 Normative references 3 Terms and definitions 4 Product classification 5 Technical requirements 6 Test methods 7 Inspection rules 8 Packaging, marking, transportation and storage
