This standard specifies the classification, requirements, test methods, inspection rules as well as marking, packaging, transport and storage of abrasive cloth.
This standard is applicable to coated abrasives made by bonding artificial abrasives such as corundum and silicon carbide to the surface of the cloth base with adhesion agents such as gelatine glue and synthetic resin.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 2476 Conventional abrasive - Symbols
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection (GB/T 2828.1-2003, ISO 2859-1:1999, IDT)
GB/T 9258.1 Coated abrasives - Grain size analysis - Part 1: Grain size distribution test (GB/T 9258.1-2000, idt ISO 6344-1:1998)
GB/T 9258.2 Coated abrasives - Grain size analysis - Part 2: Determination of grain size distribution of macrogrits P12 to P220 (GB/T 9258.2-2000, idt ISO 6346-2:1998)
GB/T 9258.3 Coated abrasives - Grain size analysis - Part 3: Determination of grain size distribution of microgrits P240 to P2 500 (GB/T 9258.3-2000, idt ISO 6344-3:1998)
JB/T 7424 Coated abrasives - Determination of tensile strength and extensibility
3 Terms
For the purposes of this standard, the following terms and definitions apply.
Foreword i 1 Scope 2 Normative references 3 Terms 4 Product classification 4.1 Classified by shape 4.2 Classified by adhesion agents 4.3 Classified by base material 4.4 Classified by abrasives 4.5 Marking example 5 Requirements 5.1 Abrasive particle size and distribution 5.2 Dimension and limit deviation 5.3 Tensile strength and elongation 5.4 Appearance quality 6 Test methods 6.1 Determination of particle size distribution of abrasives 6.2 Dimensional inspection 6.3 Tensile strength and elongation inspection 6.4 Appearance quality inspection 7 Inspection rules 7.1 Inspection items 7.2 Sampling 7.3 Determination of inspection lot 7.4 Inspection rules for plain sheets 7.5 Inspection rules for abrasive cloth rolls 8 Marking, packaging and storage 8.1 Marking 8.2 Packaging 8.3 Transport 8.4 Storage Table 1 Classified by shape and symbols Table 2 Classified by adhesion agents and symbols Table 3 Classified by base material and symbols Table 4 Tensile strength and elongation of abrasive cloth rolls Table 5 Classification of rejected plain sheets Table 6 Classification of rejected abrasive cloth rolls
