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Polypropylene packaging container - Guidelines for the construction of initial screening testing methods for doped with recycled plastic
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Basic data
| Standard ID | GB/T 44995-2024 (GB/T44995-2024) |
| Description (Translated English) | Polypropylene packaging container - Guidelines for the construction of initial screening testing methods for doped with recycled plastic |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | G31 |
| Classification of International Standard | 83.080 |
| Word Count Estimation | 14,195 |
| Date of Issue | 2024-11-28 |
| Date of Implementation | 2025-06-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 44995-2024: Polypropylene packaging container - Guidelines for the construction of initial screening testing methods for doped with recycled plastic
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 83.080
CCSG31
National Standard of the People's Republic of China
Polypropylene packaging containers
Guidance on the Construction of a Primary Screening Test Method for Adulterated Recycled Plastics
Released on 2024-11-28
2025-06-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by China Light Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Food Contact Materials and Products (SAC/TC397).
This document was drafted by. Hebei Product Quality Supervision and Inspection Institute, Hebei Shangdong Packaging Technology Co., Ltd., Hebei Product Quality
Safety Testing Technology Center, Dongguang County Quality and Technical Supervision and Inspection Institute (Hebei Province Packaging Machinery Product Quality Supervision and Inspection Center), Jiangnan University,
Xiongxian Quality and Technical Supervision and Inspection Institute, Shijiazhuang College.
The main drafters of this document are. Tian Xu, Wang Lei, Zhao Song, Wang Canjun, Qin Wanbao, Wang Yanling, Zhang Yanli, Lu Lixin, Liu Zhenzhuang, Yu Shengzhe,
Nie Bo.
Polypropylene packaging containers
Guidance on the Construction of a Primary Screening Test Method for Adulterated Recycled Plastics
1 Scope
This document provides a test machine for the initial screening test method for adulterated recycled plastics in polypropylene (PP) packaging containers (hereinafter referred to as "containers").
Guidance on test equipment, sample preparation, test methods, analysis of results and test reporting.
This document is applicable to the initial screening test method for recycled plastics in packaging containers processed and prepared with polypropylene resin as the main raw material
Build.
This document is not applicable to the construction of preliminary screening test methods for adulterated recycled plastics in other plastics and olefin composite products.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 2035-2008 Plastics terms and definitions
GB/T 3682.1 Plastics - Determination of melt mass flow rate (MFR) and melt volume flow rate (MVR) of thermoplastics
Part 1.Standard methods
GB/T 19466.1 Plastics Differential Scanning Calorimetry (DSC) Part 1.General
GB/T 19466.3 Plastics Differential Scanning Calorimetry (DSC) Part 3.Determination of Melting and Crystallization Temperature and Enthalpy
GB/T 19466.6 Plastics Differential Scanning Calorimetry (DSC) Part 6.Oxidation Induction Time (Isothermal OIT) and Oxidation Induction
Determination of temperature (dynamic OIT)
3 Terms and definitions
The terms and definitions defined in GB/T 2035 and the following apply to this document.
3.1
recycled plastic
Plastics made from washed and shredded waste products.
[Source. GB/T 2035-2008, 2.825, modified]
3.2
Melt mass flow rate meltmassflowrate; MFR
Under the conditions of specified temperature, load and piston position, the extrusion rate of molten resin through a die of specified length and inner diameter is specified.
The mass extruded over time was taken as the melt mass flow rate.
Note. The unit is gram per ten minutes (g/10min).
[Source. GB/T 3682.1-2018, 3.1, modified]
3.3
A relative measure of the resistance of a stabilized material to oxidative decomposition. Determined by calorimetry at normal pressure, oxygen or air atmosphere and specified temperature.
...
