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GB/T 21302-2007: General rules of laminated films and pouches for packaging Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 21302-2007: General rules of laminated films and pouches for packaging---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21302-2007GB ICS 83.140.10 G 33 General rules of laminated films and pouches for packaging Issued on. DECEMBER 05, 2007 Implemented on. SEPTEMBER 01, 2008 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 4 2 Normative references... 4 3 Terms, definitions, symbols and abbreviations... 5 4 Classification... 8 5 Requirements... 9 6 Test methods... 13 7 Inspection rules... 17 8 Marking, packaging, transportation and storage... 18ForewordThis Standard was proposed by China Light Industry Council. This Standard shall be under the jurisdiction of National Standardization Technical Committee of Plastic Products. Drafting organizations of this Standard. Composite Film Professional Committee of China Plastics Processing Industry Association, Shanghai People Plastic Printing Factory, Shanghai Zijiang Color-Printing Packaging Co., Ltd., Wuxi Guotai Color-Printing Co., Ltd., Jiangsu Caihua Packaging Group Co., Lianyungang Zhongjin Medicinal Packaging Co., Ltd. Main drafters of this Standard. Wu Shiming, Gu Hongqing, Cai Mingyu, Gao Xuewen, Yin Qiqian, Wen Xiusong, Zhang Lieyin and Tian Guohong. This Standard is developed for the first time. General Rules of Laminated Films and Pouches for Packaging1 ScopeThis Standard specifies the terms, definitions, symbols, abbreviations, classification, requirements, test methods, inspection rules, packaging, transportation and storage of laminated films and pouches for packaging that are made of different materials through different lamination methods. This Standard applies to laminated films and pouches for food and non-food packaging; it is not applicable to laminated films and pouches for pharmaceutical packaging.2 Normative referencesThe articles contained in the following documents have become part of this document when they are quoted herein. For the dated documents so quoted, all subsequent modifications (excluding corrigendum’s contents) or revisions made thereafter do not apply to this Standard. However, the parties who reach an agreement according to this Standard are encouraged to study whether the latest versions of these documents may be used. For the undated documents so quoted, the latest versions (including all modification sheets) apply to this document. GB/T 191 Packaging - Pictorial marking for handling of goods (GB/T 191-2000, eqv ISO 780.1997) GB/T 1037-1988 Test method for water vapor transmission of plastic film and sheet - Cup method (neq ASTM E96.1980) GB/T 1038-2000 Plastics - Film and sheeting - Determination of gas transmission - Differential-pressure method (neq ISO 2556.1974) GB/T 1410-2006 Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials (IEC 60093.1980, IDT) GB/T 1040.3-2006 Plastics - Determination of tensile properties - Part 3.Test conditions for films and sheets (ISO 527-3.1995, IDT) GB/T 2410-1980 Transparent plastics - Transmissivity and haze test (eqv ASTM D1003.1977) GB/T 2918-1998 Plastics - Standard atmospheres for conditioning and testing (idt ISO 291.1997)3 Terms, definitions, symbols and abbreviationsThe following terms, definitions, symbols and abbreviations apply to this Standard. 3.1 Terms, definitions and symbols 3.1.1 Material Here it refers to different types of resins, plastic films, coated films, paper, aluminum foil, etc. 3.1.2 Lamination method Dry lamination, wet lamination, wet lamination, extrusion lamination, coextru-lamination, etc. 3.2 Abbreviations4 Classification4.1 Classification by structure Products are divided into 4 categories, based on material structure, as shown in Table 1. 4.3 Classification by application Products are divided into food packaging and non-food packaging based on application.5 Requirements5.1 Appearance quality Appearance quality of films and pouches shall comply with the provisions in Table 2. 5.2 Printing quality 5.2.1 Gravure-printing Gravure-printing quality shall comply with the provisions of GB/T 7707-1987. 5.3 Specifications 5.3.1 Dimensional deviation of flat film Dimensional deviation of flat film in length is determined by both supplying-demanding sides through negotiation; dimensional deviation in width is ±2 mm; average width deviation is ±10%.6 Test methods6.1 Sample state adjustment and standard test environment Follow the standard environment prescribed in GB/T 2918-1998 and normal deviation range; air temperature is (23±2)°C; relative humidity is (50±10)%; state adjustment time is not les than 4 h; and test is carried out under this condition. 6.2 Appearance quality Visually test in natural light; and measure with the measuring tool of which the precision is not less than 0.5 mm. 6.3 Printing quality 6.4 Dimensional deviation 6.4.1 Dimensional deviation of films and pouches in length and width follows the provisions of GB/T 6673-2001. 6.4.2 Thickness deviation of films and pouches follow the provisions of GB/T 6672-2001. 6.5 Physical and mechanical properties 6.5.1 Pulling strength and elongation at break Follow the provisions of GB/T 1040.3-2006.Use strip sample; the length is ≥ 150 mm; the width is ≥ 15 mm; gauge length is (100±1) mm; tensile speed (no load) of the sample is (250±25) mm/min. Mount the test piece of which the diameter is 100 mm TO sample-film fixing ring; then puncture with a steel-needle, of which the diameter is 1.0 mm and the spherical top diameter is 0.5 mm, at speed of (50±5) mm/min; read the maximum load when the steel-needle penetrates the test piece. Test more than 5 pieces; take the arithmetic mean value. Puncture strength test device is shown in Figure 1. 6.5.12 Friction coefficient Follow the provisions of GB/T 10006-1988. 6.5.13 Surface resistivity Follow the provisions of GB/T 1410-2006. 6.5.14 High-temperature medium resistance Respectively put 4% acetic acid (HAc), 1% sodium sulfide (Na2S), 5% sodium chloride (NaCl) aqueous solution, and refined vegetable oil into pouch; then exhaust the air and seal; carry out high-temperature pressurization treatment in autoclave with anti-pressure cooling device at 121°C for 40 min; cool to below 40°C under the condition that the temperature is maintained unchanged; take out and inspect the appearance one by one; 6.5.16 Hygienic property Follow the provisions of GB/T 5009.60-2003; in which, detection of diaminotoluene follows the provisions of GB/T 5009.119-2003.7 Inspection rules7.1 Laminated films and pouches for food packaging shall be tested for six items - 5.1 Appearance quality, 5.3 Specifications, 5.4.1 Pulling strength, 5.4.4 Heat-seal strength, 5.4.5 Peel strength and 5.4.17 hygienic property; other items are determined by both supplying-demanding sides through negotiation. 7.3 Other contents of inspection rules follow the provisions of specific product standards.8 Marking, packaging, transportation and storage8.1 Marking Inside and outside packaging of each product shall be accompanied by product qualification certificate, indicating product name, specifications, quantity, batch number, date of manufacture, code of inspector, name of manufacturing plant, plant address, executive standard number, etc. 8.2 Packaging Films and pouches are generally packaged in paper-carton lined with Kraft paper or thin film; it may also be determined by both supplying-demanding sides through negotiation. 8.4 Storage Products shall be stored in clean, dry, ventilated, suitable-temperature warehouse; avoid sunlight; the distance to heat source is not less than 1m; products shall be reasonably stacked. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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