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GB/T 17030-2019 English PDF (GBT17030-2019)

GB/T 17030-2019 English PDF (GBT17030-2019)

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GB/T 17030-2019: Polyvinylidene chloride (PVDC) flat-film for food-packaging

This Standard specifies the classification, technical requirements, test methods, inspection rules, marking, package, transportation and storage of polyvinylidene chloride (PVDC) flat-film for food-packaging. This Standard is applicable to the polyvinylidene chloride (PVDC) flat-film prepared by blow molding using polyvinylidene chloride resin as the main raw material.
GB/T 17030-2019
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 55.040
A 82
Replacing GB/T 17030-2008
Polyvinylidene Chloride (PVDC)
Flat-Film for Food-Packaging
ISSUED ON: MAY 10, 2019
IMPLEMENTED ON: DECEMBER 01, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Classification ... 5
4 Technical Requirements ... 5
5 Test Methods ... 7
6 Inspection Rules ... 9
7 Marking, Package, Transportation and Storage ... 10
Polyvinylidene Chloride (PVDC)
Flat-Film for Food-Packaging
1 Scope
This Standard specifies the classification, technical requirements, test methods, inspection rules, marking, package, transportation and storage of polyvinylidene chloride (PVDC) flat-film for food-packaging.
This Standard is applicable to the polyvinylidene chloride (PVDC) flat-film (hereinafter referred to as flat-film) prepared by blow molding using polyvinylidene chloride resin as the main raw material.
2 Normative References
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.
GB/T 1037-1988 Test Method for Water Vapor Transmission of Plastic Film and Sheet - Cup Method
GB/T 1038 Plastics - Film and Sheeting - Determination of Gas Transmission - Differential-Pressure Method
GB/T 1040.3-2006 Plastics - Determination of Tensile Properties - Part 3: Test Conditions for Films and Sheets
GB/T 2981 Technical Specification of Pneumatic Tyres for Industrial Vehicles GB 4806.1 National Food Safety Standard - General Safety Requirements on Food Contact Materials and Articles
GB 4806.7 National Food Safety Standard - Food Contact Plastic Materials and Articles
GB/T 6672 Determination of Thickness of Plastic Film and Sheeting by Mechanical Scanning
than 10?? to measure the diameter of the carbonization points and impurities in the flat- film.
5.4 Printing quality
5.4.1 Visually examine the printing quality of the flat-film under the natural light. 5.4.2 Use the 20?? magnifier with accuracy of 0.01mm to measure the overprinting error between any two colors on the primary and secondary positions of the sample; separately measure three points; then take the average value as the overprinting error of the primary and secondary positions.
5.5 Specification and size
5.5.1 The thickness test shall be carried out as per the provisions of GB/T 6672; use the maximum and minimum thickness measurement values to calculate the limit deviation of the thickness.
5.5.2 The length and width inspection shall be carried out as per the provisions of GB/T 6673.
5.6 Physical and mechanical properties
5.6.1 Tensile strength and nominal tensile strain at break
It shall be carried out as per the provisions of GB/T 1040.3-2006. Adopt Type-2 sample; sample width is 15mm??0.1mm; length is greater than or equal to 150mm; the clamp spacing of the sample is 100mm??1mm; test speed (no-load) is 250mm/min??25mm/min. The results shall take the average value, retaining the integer digits. 5.6.2 Tear resistance force
It shall be performed as per the provisions of GB/T 16578.2.
5.6.3 Heat shrinkage rate
It shall be performed as per the provisions of GB/T 12027. The heating medium is air; test temperature is 120??C??2??C; test time is 30min.
5.6.4 Water vapor transmission rate
It shall be performed as per the Condition-2 in GB/T 26253-2010 or Condition-A in GB/T 1037-1988; and the arbitration shall be performed as per the method in GB/T 26253-2010.
5.6.5 Oxygen gas transmission rate
It shall be performed as per the provisions of GB/T 19789 or GB/T 1038; test d) When resuming production after more than half a year shutdown;
e) When exit-factory inspection results have significant differences with the previous type inspection;
f) When the quality supervision agency proposes the inspection requirements. 6.4 Judgement Rules
6.4.1 If the appearance, printing quality, specification and size inspection results of the flat-film meet the technical requirements; then such batch of products are judged to be qualified; if one item is unqualified; and the double sampling reinspection is still unqualified, then such batch of products are judged to be unqualified.
6.4.2 If the test results on the physical and mechanical properties are qualified, then such batch of products are qualified; if one item is unqualified; and the double sampling reinspection is still unqualified, then such batch of products are judged to be unqualified.
6.4.3 If one item in inspection results of the food safety indexes is unqualified; then such batch of products are unqualified.
7 Marking, Package, Transportation and Storage
7.1 Marking
The products?€? markings and labels shall conform to the provisions of GB 4806.1 and GB 4806.7. The product shall be attached with certificate on which the following information shall be indicated, such as product name, type, manufacturer, manufacture address, production date, inspection staff, batch number, executive standard and product color.
7.2 Package
The flat-film shall take the inner package of plastics; and outer package of corrugated box. Each roll of flat-film shall be placed into the carton in the vertical direction of the core tube. Special package shall be agreed by the supplier and the purchaser. 7.3 Transportation
The products shall be protected from mechanical collisions, sun, and rain during the transportation period; it shall not be transported together with the toxic and hazardous substances.
7.4 Storage

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