HOME   Cart(0)   Quotation   About-Us Tax PDFs Standard-List Powered by Google www.ChineseStandard.net Database: 189760 (15 Feb 2025)

GB/T 22271.2-2021 English PDF (GB/T 22271.2-2008)

GB/T 22271.2-2021_English: PDF (GB/T22271.2-2021)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 22271.2-2021English170 Add to Cart 0--9 seconds. Auto-delivery Plastics -- Polyoxymethylene(POM) moulding and extrusion materials -- Part 2: Preparation of test specimens and determination of properties Valid GB/T 22271.2-2021
GB/T 22271.2-2008English279 Add to Cart 3 days [Need to translate] Plastics -- Polyoxymethylene (POM) moulding and extrusion materials -- Part 2: Preparation of test specimens and determination of properties Obsolete GB/T 22271.2-2008


BASIC DATA
Standard ID GB/T 22271.2-2021 (GB/T22271.2-2021)
Description (Translated English) Plastics -- Polyoxymethylene(POM) moulding and extrusion materials -- Part 2: Preparation of test specimens and determination of properties
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G31
Classification of International Standard 83.080.20
Word Count Estimation 11,193
Date of Issue 2021-10-11
Date of Implementation 2022-05-01
Older Standard (superseded by this standard) GB/T 22271.2-2008
Drafting Organization Chongqing Yuntianhua Tianju New Material Co., Ltd., Zhonglan Chenguang Chengdu Testing Technology Co., Ltd., Tangshan Zhonghao Chemical Co., Ltd., National Energy Group Ningxia Coal Industry Co., Ltd., Kaifeng Longyu Chemical Co., Ltd., Yankuang Lunan Chemical Co., Ltd. , Chongqing Kejufu Engineering Plastics Co., Ltd., Jilin Provincial Product Quality Supervision and Inspection Institute, China General Nuclear Power Juner (Zhejiang) New Materials Co., Ltd.
Administrative Organization National Plastics Standardization Technical Committee (SAC/TC 15)
Proposing organization China Petroleum and Chemical Industry Federation
Issuing agency(ies) State Administration for Market Regulation, National Standardization Administration

BASIC DATA
Standard ID GB/T 22271.2-2008 (GB/T22271.2-2008)
Description (Translated English) Plastics. Polyoxymethylene (POM) moulding and extrusion materials. Part 2: Preparation of test specimens and determination of properties
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G31
Classification of International Standard 83.080.20
Word Count Estimation 7,723
Date of Issue 2008-08-04
Date of Implementation 2009-04-01
Quoted Standard GB/T 1033.1-2008; GB/T 1034-2008; GB/T 1040.1-2006; GB/T 1040.2-2006; GB/T 1043.1-2008; GB/T 1408.1-2006; GB/T 1409-2006; GB/T 1410-2006; GB/T 1634.1-2004; GB/T 1634.2-2004; GB/T 1843-2008; GB/T 2918-1998; GBB/T 3682-2000; GB/T 4207-2003; GB/T 9341-2008; GB/T 11546-2006; GB/T 11997-2008; GB/T 17037.1-1997; GB/T 17037.3-2003; GB/T 17037.4-2003; GB/T 19466.3-2004; GB/T 19467.1-2004; GB/T 22271.1-2008; IEC 60296-1982
Adopted Standard ISO 9988-2-1999, IDT
Drafting Organization National Quality Supervision and Inspection Center of synthetic resin
Administrative Organization National Standardization Technical Committee general method of plastic resins and plastic products Technical Committee
Regulation (derived from) National Standard Approval Announcement 2008 No.12 (Total No.125)
Proposing organization China Petroleum and Chemical Industry Association
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies test methods and preparation of polyoxymethylene molding and extruding the material properties of the sample measured. Given before the test sample before molding and processing and conditioning requirements. This section provides sample preparation methods and conditions, as well as methods for measuring the sample. Lists the performance and test methods to characterize POM molding and extrusion materials.


GB/T 22271.2-2021 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.080.20 CCS G 31 GB/T 22271.2-2021 / ISO 29988-2:2018 Replacing GB/T 22271.2-2008 Plastics - Polyoxymethylene (POM) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 29988-2:2018, IDT) ISSUED ON: OCTOBER 11, 2021 IMPLEMENTED ON: MAY 01, 2022 Issued by: State Administration for Market Regulation; Standardization Administration of PRC. Table of Contents Foreword ... 3  Introduction ... 5  1 Scope ... 6  2 Normative references ... 6  3 Definitions and terms ... 8  4 Preparation of specimen ... 8  5 State conditioning of specimen ... 9  6 Performance determination ... 9  Appendix NA (Informative) Chinese documents that have a consistent correspondence with the international documents as normatively cited in this document ... 12  References ... 14  Plastics - Polyoxymethylene (POM) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties 1 Scope This document specifies methods for the preparation of test specimens AND the determination of properties, for polyoxymethylene molding and extrusion materials. This document specifies the handling of the tested material, as well as the state conditioning requirements for the tested material prior to molding and the specimen prior to testing. This document specifies the methods and conditions for specimen preparation, as well as the method for measuring the specimen. This document applies to POM molding and extrusion materials. This document lists properties and test methods, for characterizing polyoxymethylene molding and extrusion materials. These properties are selected from general test methods. Some other particularly important or widely used test methods, for POM molding and extrusion materials, are also covered in this document, along with characteristic properties: melt flow rate and tensile modulus of elasticity. In order to obtain comparable and reproducible test results, it is intended to be carried out, in accordance with the sample preparation process and state conditioning method, sample size, test method, which is specified in this document. Test data, which uses different specimen sizes or specimen preparation methods, may not be consistent. 2 Normative references The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, for dated references, only the version corresponding to the date applies to this document; for undated references, the latest version (including all amendments) is applicable to this document. ISO 62 Plastics - Determination of water absorption ISO 75-2 Plastics - Determination of temperature of deflection under load - Part 2: Plastics and ebonite ISO 178 Plastics - Determination of flexural properties IEC 60296 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear IEC 62631-3-1 Dielectric and resistive properties of solid insulating materials - Part 3-1: Determination of resistive properties (DC Methods) - Volume resistance and volume resistivity - General method IEC 62631-3-2 Dielectric and resistive properties of solid insulating materials - Part 3-2: Determination of resistive properties (DC methods) - Surface resistance and surface resistivity 3 Definitions and terms There are no terms and definitions, that need to be defined, in this document. ISO and IEC maintain terminology databases for standardization, at the following websites: - IEC Electropedia: available at http://www.electropedia.org/ - ISO Online browsing platform: available at https://www.iso.org/obp 4 Preparation of specimen 4.1 Overview Specimens shall be prepared, using injection molding. Specimens shall be prepared, using the same process and the same processing conditions. Standard conditions are as given in Table 1. Materials shall be kept in moisture-proof containers until processing. 4.2 Pretreatment of materials before molding Material samples generally do not require pretreatment, prior to processing. Note: POM molding material particle surfaces can absorb moisture, which may cause surface defects in molded specimens. In order to ensure that the surface of the specimen is free of defects, the material can be dried at a temperature of 80 °C, for at least 4 h. 4.3 Injection Specimens shall be prepared, according to ISO 294-1, ISO 294-3 or ISO 294-4, using the conditions specified in Table 1. tracking indices of solid insulating materials (IEC 60112:2009, IDT); - GB/T 9341-2008 Plastics - Determination of flexural properties (ISO 178:2001, IDT); - GB/T 11546.1-2008 Plastics - Determination of creep behavior - Part 1: Tensile creep (ISO 899-1:2003, IDT); - GB/T 17037.1-2019 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 1: General principles, and molding of multipurpose and bar test specimens (ISO 294-1:2017, MOD); - GB/T 17037.3-2003 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 3: Small plates (ISO 294-3:2002, IDT); - GB/T 17037.4-2003 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 4: Determination of moulding shrinkage (ISO 294- 4:2001, IDT); - GB/T 19466.3-2004 Plastics - Differential scanning calorimetry (DSC) - Part 3: Determination of temperature and enthalpy of melting and crystallization (ISO 11357-3:1999, IDT); - GB/T 19467.1-2004 Plastics - Acquisition and presentation of comparable single- point data - Part 1: Moulding materials (ISO 10350-1:1998, MOD); - GB/T 31838.2-2019 Dielectric and resistive properties of solid insulating materials - Part 2: Determination of resistive properties (DC Methods) - Volume resistance and volume resistivity - General method (IEC 62631-3-1:2016, IDT); - GB/T 31838.3-2019 Dielectric and resistive properties of solid insulating materials - Part 3: Determination of resistive properties (DC methods) - Surface resistance and surface resistivity (IEC 62631-3-2:2015, IDT); - GB/T 36800.2-2018 Plastics - Thermomechanical analysis (TMA) - Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature (ISO 11359-2:1999, IDT); - GB/T 37426-2019 Plastics - Test specimens (ISO 20753:2018, MOD). ......


GB/T 22271.2-2008 . Plastics Polyoxymethylene (POM) moulding and extrusion materials Part 2. Preparation of test specimens and determination of properties ICS 83.080.20 G31 National Standards of People's Republic of China GB/T 22271.2-2008/ISO 9988-2.1999 Plastic polyoxymethylene (POM) molding and extrusion materials Part 2. Sample preparation and determination of properties (ISO 9988-2.1999, IDT) Posted 2008-08-04 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Foreword GB/T 22271 "plastic polyoxymethylene (POM) molding and extrusion materials" is divided into two parts. --- Part 1. Designation system and basis; --- Part 2. Sample preparation and performance measurement. This section GB/T 22271 Part 2, this part identical with ISO 9988-2.1999 "Plastics molding and extrusion --- Plastic materials --- Part 2. Sample Preparation and Performance Testing "(1999 in English). For ease of use, this section made the following editorial changes. --- To the "international standards" be replaced by the "Standard" or "GB/T 22271", the "this part of ISO 9988" to "GB/T 22271 This part of "or" this part "; --- Remove the ISO 9988-2.1999 Foreword; --- Increasing the foreword of national standards in this section. This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Standardization Technical Committee of plastic resin, plastic products and general methods Technical Committee (SAC/TC15/SC4) Centralized. This section is responsible for drafting. National Quality Supervision and Inspection Center of synthetic resin, Yuntianhua Company. Participated in the drafting of this section. National Chemical Building Materials Test Center, Guangzhou Blonde Technology Co., Ltd., Shandong Dawn Group. The main drafters of this section. Zheng Ning, Wang Jiandong, Saline, general Xuetao, Hu Zhiying. This section first release. GB/T 22271.2-2008/ISO 9988-2.1999 Plastic polyoxymethylene (POM) molding and extrusion materials Part 2. Sample preparation and determination of properties 1 Scope This section GB/T 22271 specifies the test methods for preparation and properties of molding and extrusion material sample measured. Given The molding and before the test sample before treatment and conditioning requirements. It specifies the sample preparation methods and conditions, and methods of measurement of the sample. Lists characterization molding and extrusion materials And test methods. These properties are selected from the GB/T 19467-2004 General test method, the other for molding and extrusion materials are widely used Or important test method is also included in this standard, such as the performance of specified in Section 1, the melt flow rate And tensile modulus. In order to obtain repeatable test results comparable, it is necessary to use a sample preparation method and state regulation of the provisions of this section, the sample size And test methods. Data of different sizes or different sample preparation method was not comparable. 2 Normative references The following documents contain provisions which, through GB/T 22271 in this part of the reference in terms of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. 1033.1-2008 non-plastic foam density measurement GB/T Part 1. Immersion method, liquid pyknometer method and titration method (ISO 1183-1.2004, IDT) GB/T 1034-2008 Plastics Determination of water absorption (ISO 62.1999, IDT) GB /1040.1-2006 Plastics Determination of tensile properties T Part 1. General (ISO 527-1.1993, IDT) GB /1040.2-2006 Plastics Determination of tensile properties T - Part 2. Test plastics molding and extrusion conditions (ISO 527- 2.1993, IDT) GB /1043.1-2008 plastic Charpy impact properties measured T Part 1. Non-instrumented impact test (ISO 179-1. 2000, IDT) GB/T 1408.1-2006 electrical insulating materials strength test methods - Part 1. Tests at power frequencies (IEC 60243-1.1998, IDT) GB/T 1409-2006 Measurement of electrical insulating materials at power, audio, high-frequency (including meter wavelengths included) of the permittivity and dielectric loss Consumption factor recommended method (IEC 60250. 1969, IDT) GB/T 1410-2006 solid insulating material volume resistivity and surface resistivity test methods (IEC 60093. 1980, IDT) Determination of GB/T 1634.1-2004 Plastics deflection temperature under load - Part 1. General test method (ISO 75-1.2003, IDT) GB/T 1634.2-2004 Determination of plastic deflection temperature under load - Part 2. Plastics, ebonite and long-fiber-reinforced composite materials Material (ISO 75-2.2003, IDT) Determination of strength (ISO 180.2000, IDT) GB/T 1843-2008 plastic Izod impact GB/T 2918-1998 standard plastic sample conditioning and environmental tests (idt ISO 291.1997) GB/T 3682-2000 quality thermoplastic melt flow rate and melt volume flow rate measurement (idt ISO 1133. GB/T 22271.2-2008/ISO 9988-2.1999 ......

Similar standards: GB/T 22271.1-2021  GB/T 22271.3-2016  
Similar PDFs (Auto-delivered in 9 seconds): GB/T 22271.2-2021  GB/T 22271.1-2021  GB/T 24128-2018  GB/T 19277.2-2013