GB/T 41758.2-2022Plastics - Polyketone (PK) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (English PDF)

Foreword

This document was drafted in accordance with the rules given in GB/T 1.1-2020,

Directives for standardization - Part 1: Rules for the structure and drafting of

standardizing documents.

This document is Part 2 of GB/T 41758 Plastics - Polyketone (PK) moulding and

extrusion materials. The following parts have been released for GB/T 41758:

-- Part 1: Designation system and basis for specifications

-- Part 2: Preparation of test specimens and determination of properties.

This document is modified from ISO 21970-2:2019 Plastics - Polyketone (PK)

moulding and extrusion materials - Part 2: Preparation of test specimens and

determination of properties.

The technical differences between this document and ISO 21970-2:2019 and the

reasons are as follows:

-- Use the normatively referenced GB/T 41758.1 to replace ISO 21970-1 (see

Chapter 1), to adapt to the technical conditions in China;

-- Use the normatively referenced GB/T 17037.1 to replace ISO 294-1 (see 4.3), to

adapt to the technical conditions in China;

-- Use the normatively referenced GB/T 2918 to replace ISO 291 (see Chapter 5), to

adapt to the technical conditions in China;

-- Use the normatively referenced GB/T 19467.1 to replace ISO 10350-1 (see

Chapter 6), to adapt to the technical conditions in China;

-- Use the normatively referenced GB 2536 to replace IEC 60296 (see Table 2), to

adapt to the technical conditions in China;

-- Use the normatively referenced GB/T 3682.1 to replace ISO 1133-1 (see Table 2),

to adapt to the technical conditions in China;

-- Use the normatively referenced GB/T 37426 to replace ISO 20753 (see Table 2),

to adapt to the technical conditions in China;

-- Use the normatively referenced GB/T 1033.1 to replace ISO 1183-1 (see Table 2),

to adapt to the technical conditions in China;

-- Use the normatively referenced GB/T 1033.2 to replace ISO 1183-2 (see Table 2),

to adapt to the technical conditions in China;

Plastics - Polyketone (PK) moulding and extrusion materials

- Part 2: Preparation of test specimens and determination of

properties

1 Scope

This document describes the preparation of test specimens and test methods for the

determination of properties of polyketone moulding and extrusion materials. It specifies

requirements for the handling of the test material and/or the conditioning of the test

material before moulding and the test specimens before testing.

The determination method of properties is selected from the general test methods in

GB/T 19467.1. This document also lists other test methods widely used or of special

significance for moulding and extrusion materials, as well as the determination methods

for characteristic properties in GB/T 41758.1.

In order to ensure that the test results are reproducible and repeatable, it is necessary to

use the methods for preparation of test specimens and state conditioning specified in

this document, as well as the specified specimen size and test method. Test data

obtained using specimens prepared under different conditions or using specimens of

different dimensions may not be consistent.

2 Normative references

The following documents are normatively referenced in this document and are

indispensable for its application. For dated references, only the version corresponding

to that date is applicable to this document; for undated references, the latest version

(including all amendments) is applicable to this document.

GB/T 1033.1, Plastics - Methods for determining the density of non-cellular plastics

- Part 1: Immersion method liquid pyknometer method and titration method (GB/T

1033.1-2008, ISO 1183-1:2004, IDT)

GB/T 1033.2, Plastics - Methods for determining the density of non-cellular plastics

- Part 2: Density gradient column method (GB/T 1033.2-2010, ISO 1183-2:2004,

MOD)

GB/T 1033.3, Plastics - Methods for determining the density of non-cellular plastics

- Part 3: Gas pyknometer method (GB/T 1033.3-2010, ISO 1183-3:1999, IDT)

GB/T 9345.4, Plastics - Determination of ash - Part 4: Polyamides (GB/T 9345.4-

2008, ISO 3451-4:1998, IDT)

GB/T 12006.2, Plastics - Polyamides - Part 2: Determination of water content (GB/T

12006.2-2009, ISO 15512:1999, MOD)

GB/T 16422.1, Plastics - Methods of exposure to laboratory light sources - Part 1:

General guidance (GB/T 16422.1-2019, ISO 4892-1:2016, IDT)

GB/T 16422.2, Plastics - Methods of exposure to laboratory light sources - Part 2:

Xenon-arc lamps (GB/T 16422.2-2014, ISO 4892-2:2006, IDT)

GB/T 16422.3, Plastics - Methods of exposure to laboratory light sources - Part 3:

Fluorescent UV lamps (GB/T 16422.3-2014, ISO 4892-3:2006, IDT)

GB/T 16422.4, Plastics - Methods of exposure to laboratory light sources - Part 4:

Open-flame carbon-arc lamps (GB/T 16422.4-2014, ISO 4892-4:2004, IDT)

GB/T 17037.1, Plastics - Injection moulding of test specimens of thermoplastic

materials - Part 1: General principles, and moulding of multipurpose and bar test

specimens (GB/T 17037.1-2019, ISO 294-1:2017, MOD)

GB/T 19466.2, Plastics - Differential scanning calorimetry (DSC) - Part 2:

Determination of glass transition temperature (GB/T 19466.2-2004, ISO 11357-

2:1999, IDT)

GB/T 19466.3, Plastics - Differential scanning calorimetry (DSC) - Part 3:

Determination of temperature and enthalpy of melting and crystalliation (GB/T

19466.3-2004, ISO 11357-3:1999, IDT)

GB/T 19467.1, Plastics - Acquisition and presentation of comparable single-point

data - Part 1: Moulding materials (GB/T 19467.1-2004, ISO 10350-1:1998, MOD)

GB/T 31838.2, Solid insulating materials - Dielectric and resistive properties - Part

2: Resistive properties (DC methods) - Volume resistance and volume resistivity

(GB/T 31838.2-2019, IEC 62631-3-1:2016, IDT)

GB/T 31838.3, Solid insulating materials - Dielectric and resistive properties - Part

3: Resistive properties (DC methods) - Surface resistance and surface resistivity

(GB/T 31838.3-2019, IEC 62631-3-2:2015, IDT)

GB/T 31838.6, Solid insulating materials - Dielectric and resistive properties - Part

6: Dielectric properties (AC method) - Relative permittivity and dielectric

dissipation factor (frequencies 0.1 Hz ~ 10 MHz) (GB/T 31838.6-2021, IEC 62631-

2-1:2018, IDT)

GB/T 36800.2, Plastics - Thermomechanical analysis (TMA) - Part 2: Determination

of coefficient of linear thermal expansion and glass transition temperature (GB/T

36800.2-2018, ISO 11359-2:1999, IDT)

GB/T 37426, Plastics - Test specimens (GB/T 37426-2019, ISO 20753:2018, MOD)

GB/T 41758.1, Plastics - Polyketone (PK) moulding and extrusion materials - Part

1: Designation system and basis for specifications (GB/T 41758.1-2022, ISO 21970-

1:2019, MOD)

ISO 6603-2, Plastics - Determination of puncture impact behaviour of rigid plastics

- Part 2: Instrumented impact testing

3 Terms and definitions

No terms and definitions need to be defined in this document.

4 Preparation of test specimens