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This standard is developed in accordance with the rules given in GB/T 1.12009.
This standard replaces GB/T 3198-2010 Aluminium and aluminium alloys foils. In addition to editorial changes, the following main technical changes have been made with respect to GB/T 3198-2010 Aluminium and aluminium alloys foils:
——The application scope is modified (see clause 1; clause 1 of Edition 2010);
——The normative references are modified (see clause 2; clause 2 of Edition 2010);
——The requirements for designations, tempers, dimensions and specifications are modified (see 3.1.1; 3.1.1 of Edition 2010);
——The requirement that the purchaser shall indicate in the order form (or contract) whether the single-sided glazed aluminium foils or double-sided glazed aluminium foils are supplied, and the requirement for coiling orientation of single-sided glazed aluminium foils supplied are added (see 3.1.2);
——The requirement for labels and examples is modified (see 3.1.3; 3.1.2 of Edition 2010);
——The requirement for permissible deviation of local thickness is modified (see 3.3.1.1; 3.3.1.1 of Edition 2010);
——The requirement for the tensile mechanical property at room temperature is modified (see 3.4; 3.4 of Edition 2010);
——The minimum values of the aluminium foil thickness range in the requirements for pinholes are modified (see 3.5.1; 3.6 of Edition 2010);
——The requirement for online detection of pinholes is added (see 3.5.2);
——The requirement for stickiness is modified (see 3.6.1; 3.7 of Edition 2010);
——The requirement for local stickiness is added (see 3.6.2);
——The requirement that the surface wetting tension should not be less than 33×10-3 N/m is deleted (see 3.8 of Edition 2010);
——The "Brushing test result" is modified to "Wettability", and the requirement that the surface of zero foil be free from oil spots is deleted (see 3.8; 3.9 of Edition 2010);
——The requirement for heat seal strength is added (see 3.10);
——The requirement for joints is modified (see 3.12; 3.11 of Edition 2010);
——The deviation for the inner diameter of tube core with a specification of 305.0mm is added (see 3.13);
——The product classification of single-sided glazed aluminium foils and double-sided glazed aluminium foils is transferred to 3.1 “Product classification”, and the requirement of surface brightness is deleted (see 3.1.2; 3.13.1 of Edition 2010);
——The requirement that the aluminium foil coil be free from slippage between layers and extrusion of tube core when held vertically is deleted (see 3.13.5 of Edition 2010);
——The requirement for analysis and calculation of chemical elements is added (see 4.1.2);
——The requirement for rounding-off of analysis values of chemical elements is added (see 4.1.3);
——The requirement for rounding-off for dimension is added (see 4.2.1);
——The requirements for arbitration determination of local thickness are modified (see 4.2.2; 4.2.1 of Edition 2010);
——The test method for tensile mechanical property at room temperature is modified (see 4.3; 4.3 of Edition 2010);
——The requirement for method of online detection of pinholes is added (see 4.4);
——The arbitration detection method of stickiness is added (see 4.5);
——The arbitration determination method for surface wetting tension is added (see 4.6);
——The arbitration detection method for wettability is added (see 4.7);
——The test method for heat seal strength is added (see 4.9);
——The requirement for method of online detection of surface quality is added (see 4.13);
——The requirement for product weighing is added (see 5.3);
——The requirements for inspection items are modified (see 5.4; 5.3 of Edition 2010);
——The requirement for sampling for heat seal strength is added (see 5.5);
——The requirement for judgment of inspection results is modified (see 5.6; 5.5 of Edition 2010);
——The requirement for marks such as QR code or bar code in product marking is added (see 6.1.1.2);
——The requirement for marks such as QR code or bar code in the marking of packaging boxes is added (see 6.1.2);
——The requirement of using steel brackets, cardboard packaging boxes and paper & wood packaging boxes is added (see 6.1.3);
——The contents of order form (or contract) are modified (see clause 8; clause 7 in Edition 2010);
——The five designations (such as 3102) and the densities are added (see Annex B; Annex B of Edition 2010)
This standard was proposed by China Nonferrous Metals Industry Association.
This standard is under the jurisdiction of SAC/ TC 243 National Technical Committee on Nonferrous Metals of Standardization Administration of China.
The previous editions of this standard are as follows:
——GB 3198-1982, GB 3198-1996 and GB/T 3198-2003; GB/T 3198-2010;
——GB 3614-1983 and GB/T 3614-1999;
——GB 3616-1983 and GB/T 3619-1999.
Aluminium and aluminium alloy foils
1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transport and storage, as well as quality certificates and contents of order form (or contract) of the aluminium and aluminium alloy foils.
This standard is applicable to aluminium and aluminium alloy foils (hereinafter referred to as aluminium foils)
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 454 Paper - Determination of bursting strength
GB/T 3190 Wrought aluminium and aluminium alloy - Chemical composition
GB/T 3199 Wrought aluminium and aluminium alloy products - Packing marking transporting and storing
GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 16865 Test pieces and method for tensile test for wrought aluminium and magnesium alloys products
GB/T 17432 Methods for sampling for analyzing the chemical composition of wrought aluminum and aluminum alloys
GB/T 20975 (All parts) Methods for chemical analysis of aluminium and aluminium alloys
GB/T 22638.1 Test methods for aluminium and aluminium alloy foils - Part 1: Determination of thickness
GB/T 22638.2 Test methods for aluminium and aluminium alloy foils - Part 2: Determination of pinhole
GB/T 22638.3 Test methods for aluminium and aluminium alloy foils - Part 3: Determination of stickiness
GB/T 22638.4 Test methods for aluminium and aluminium alloy foils - Part 4: Determination of surface wetting tension
GB/T 22638.5 Test methods for aluminium and aluminium alloy foils - Part 5: Determination of wettability
GB/T 22638.6 Test methods for aluminium and aluminium alloy foils - Part 6: Determination of direct current resistance
GB/T 22638.7 Test methods for aluminium and aluminium alloy foils - Part 7: Determination of heat seal strength
3 Requirements
3.1 Product classification
3.1.1 See Table 1 for the designations, tempers, dimensions and specifications of aluminium foils. Other designations, tempers, dimensions and specifications, if required by the purchaser, shall be determined by the supplier and the purchaser through negotiation and be indicated in the order (contract).
Table 1 Designations, tempers, dimensions and specifications
3.1.2 Aluminium foils are divided into single-sided glazed aluminium foils and double-sided glazed aluminium foils, and the purchaser shall indicate in the order form (or contract) that either single-sided glazed aluminium foils or double-sided glazed aluminium foils are supplied. Single-sided glazed aluminium foils shall be supplied by coiling the bright side outward; coiling the dark side outward, if required, shall be determined by the supplier and the purchaser through negotiation and indicated in the order form (or contract).
3.1.3 The aluminium foils shall be labeled in the order of product name, standard number, designation, temper, thickness and width. The labelling example is as follows: The aluminium foil with designation of 1235, temper of O, thickness of 0.0150mm and width of 476.0mm is labeled as:
Aluminium foil GB/T 3198-1235O-0.015×476
3.2 Chemical composition
The chemical composition of aluminium foils shall meet the requirements of GB/T 3190. Special requirements for chemical composition, if any, shall be determined by the supplier and the purchaser through negotiation, and shall be indicated in the order form (or contract).
3.3 Dimensional deviation
3.3.1 Thickness
3.3.1.1 Local thickness
The permissible deviation of local thickness of 2A11, 2024, 5A02 and 5052 aluminium alloy foils shall be ±5% of T, and that of aluminium foils with other designations shall meet those specified in Table 2. The aluminium foils with high precision grade, if required, shall be specified in the order form (or contract). Otherwise, aluminium foils with ordinary grade will be supplied.
Foreword i
1 Scope
2 Normative references
3 Requirements
4 Test methods
5 Inspection rules
6 Marking, packaging, transport and storage
7 Quality certificate
8 Contents of order form (or contract)
Annex A (Informative) Direct current resistance of aluminium foils with designations of 1145 and
Annex B (Informative) Density of common aluminium and aluminium alloys
