GB/T 22271.2-2008 Replaced National standards

GB/T 22271.2-2008 Plastics—Polyoxymethylene(POM)moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties

GB/T 22271.2-2008 Plastics—Polyoxymethylene(POM)moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties

Publish Date: 2008-08-04 Implement Date: 2009-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 22271.2-2008

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Basic standards and general methods for synthetic resins and plastics

ICS Name: Thermoplastic plastics

Publish Date: 2008-08-04

Implement Date: 2009-04-01

Pages: 6 pages

Scope

This part of GB/T 22271 specifies the test methods for the preparation and performance determination of polyformaldehyde molding and extrusion materials. It gives the requirements for sample preparation, pre-test treatment, and state adjustment before molding and testing. It specifies the methods and conditions for sample preparation, as well as the methods for measuring samples. It lists the performance characteristics and test methods for polyformaldehyde molding and extrusion materials. These performance characteristics are selected from the general test methods in GB/T 19467—2004. Other widely used or important test methods for molding and extrusion materials are also included in this standard, such as the specified performance, melt flow rate, and tensile modulus specified in Part 1. In order to obtain repeatable and comparable test results, it is necessary to adopt the sample preparation methods and state adjustment specified in this part, as well as the sample size and test methods. Data obtained from samples of different sizes or prepared by different methods are not comparable.

Development Information

Word Count: 8 Thousand words Pages: 6 pages

Same series standard

GB/T 22271.1-2008 Plastics—Polyoxymethylene(POM)moulding and extrusion materials—Part 1:Designation system and basis for specifications

Superseded by the following standards

GB/T 22271.2-2021 Plastics—Polyoxymethylene(POM) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties

Referenced Standards

GB/T 1033.1-2008 Plastics—Methods for determining the density of non-cellular plastics—Part 1:Immersion method,liquid pyknometer method and titration method GB/T 1034-2008 Plastics—Determination of water absorption GB/T 1040.1-2006 Plastics—Determination of tensile properties—Part 1:General principles GB/T 1040.2-2006 Plastics—Determination of tensile properties—Part 2:Test conditions for moulding and extrusion plastics GB/T 1043.1-2008 Plastics—Determination of charpy impact properties—Part 1:Non-instrumented impact test GB/T 1408.1-2006 Electrical strength of insulating materials—Test methods—Part 1:Tests at power frequencies GB/T 1409-2006 Recommended methods for the determination of the permittivity and dielectric dissipation fator of electrical insulating materials at power,audio and radio frequencies including meter wavelengths GB/T 1410-2006 Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials GB/T 1634.1-2004 Plastics—Determination of temperature of deflection under load—Part 1:General test method GB/T 1634.2-2004 Plastics—Determination of temperature of deflection under load—Part 2:Plastics,ebonite and long-fibre-reinforced composites GB/T 1843-2008 Plastics—Determination of izod impact strength GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 3682-2000 Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics GB/T 4207-2003 Method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions GB/T 9341-2008 Plastics—Determination of flexural properties GB/T 11546-2008 GB/T 11997-2008 Plastic—Multipurpose test specimens GB/T 17037.1-1997 Injection moulding of test specimens of thermoplastic materials—Part 1:General principles and moulding of multipurpose and bar test specimens GB/T 17037.3-2003 Plastics—Injection moulding of test specimens of thermoplastic materials—Part 3:Small plates GB/T 17037.4-2003 Plastic—Injection moulding of test specimens of thermoplastic materials—Part 4:Determination of moulding shrinkage GB/T 19466.3-2004 Plastics—Differential scanning calorimetry(DSC)—Part 3:Determination of temperature and enthalpy of melting and crystallization GB/T 19467.1-2004 Plastics—Acquisition and presentation of comparable single-point data—Part 1:Moulding materials GB/T 22271.1-2008 Plastics—Polyoxymethylene(POM)moulding and extrusion materials—Part 1:Designation system and basis for specifications IEC 60296:1982

Adopt standards

ISO 9988-2:1999

Related Standards

GB/T 6595-1986 Replaced

GB/T 6595-1986 Test method for fish eye count of polypropylene resin

Publish Date: 1986-07-24

GB/T 6598-1986 Active

GB/T 6598-1986 Determination of weight-average molecular weight of polystyrene standards by low angle laser light scattering method

Publish Date: 1986-07-24

GB/T 6599-1986 abolished_transferred

GB/T 6599-1986 Determination of molecular weight averages and molecular weight distribution of polystyrene standards by steric exclusion chromatography

Publish Date: 1986-07-24

GB/T 8330-1987 Replaced

GB/T 8330-1987 Method for the determination of true density of ion exchange resins in wet state

Publish Date: 1987-11-15

GB/T 8331-1987 Replaced

GB/T 8331-1987 Method for the determination of bulk density of ion exchange resins in wet state

Publish Date: 1987-11-15

GB/T 8324-1987 Replaced

GB/T 8324-1987 Test method for bulk factor of moulding materials

Publish Date: 1987-12-01