GB/T 5169.21-2017 PDF in English
GB/T 5169.21-2017 (GB/T5169.21-2017, GBT 5169.21-2017, GBT5169.21-2017)
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Fire hazard testing for electric and electronic products -- Part 21: Abnormal heat -- Ball pressure test method
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Standards related to (historical): GB/T 5169.21-2017
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GB/T 5169.21-2017: PDF in English (GBT 5169.21-2017) GB/T 5169.21-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.220.40; 29.020
K 04
GB/T 5169.21-2017 / IEC 60695-10-2:2014
Replacing GB/T 5169.21-2006
Fire Hazard Testing for Electric and Electronic
Products - Part 21: Abnormal Heat - Ball Pressure Test
Method
(ISO 60695-10-2:2014, Fire Hazard Testing – Part 10-2: Abnormal Heat
– Ball Pressure Test Method, IDT)
ISSUED ON: DECEMBER 29, 2017
IMPLEMENTED ON: JULY 01, 2018
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
Introduction ... 7
1 Scope ... 8
2 Normative References ... 8
3 Terms and Definitions ... 9
4 General Description of the Test Method ... 9
5 Apparatus ... 10
6 Test Specimens ... 11
7 Conditioning ... 12
8 Test Procedure ... 12
9 Evaluation of Test Results ... 15
10 Information to be Given in the Relevant Product Standard ... 16
11 Test Report ... 16
Annex A (Informative) Correlation between the Ball Pressure Test and the Vicat
Softening Temperature Test of ISO 306 ... 17
Annex B (Informative) Indentation Depth Method ... 18
Bibliography ... 19
Foreword
GB/T 5169 Fire Hazard Testing for Electric and Electronic Products has published or
plans to publish the following parts:
--- Part 1: Terminology Concerning Fire Tests;
--- Part 2: Guidance for Assessing the Fire Hazard – General Guidelines;
--- Part 5: Test Flame Needle Flame Test Method Apparatus – Confirmation Test
Method and Guidance;
--- Part 9: Guidance for Assessing the Fire Hazard – Pre-Selection Testing
Procedures – General Guidelines;
--- Part 10: Glow/Hot-Wire Based Test Methods – Glow-Wire Apparatus and
Common Test Procedure;
--- Part 11: Glowing/Hot-Wire Based Test Methods – Glow-Wire Flammability Test
Method for End-Products;
--- Part 12: Glowing/Hot-Wire Based Test Methods – Glow-Wire Flammability Index
(GWFI) Test Method for Materials;
--- Part 13: Basic Test Methods for Glowing Filament/Hot-Wire – Test Methods for
Glow Wire Ignition Temperature (GWIT);
--- Part 14: Test Flames – 1kW Nominal Pre-Mixed Flame – Apparatus,
Confirmatory Test Arrangement and Guidance;
--- Part 15: Test Flames – 500W Flames – Apparatus and Confirmation Test
Methods;
--- Part 16: Test Flames – 50W Horizontal and Vertical Flame Test Methods;
--- Part 17: Test Flames – 500W Flame Test Method;
--- Part 18: Toxicity of Fire Effluent – General Guidance;
--- Part 19: Abnormal Heat – Mould Stress Relief Distortion Test;
--- Part 20: Surface Spread of Flame – Summary and Relevance of Test Methods;
--- Part 21: Abnormal Heat -Ball Pressure Test;
--- Part 22: Test Flames – 50W Flame – Apparatus and Confirmational Test Method;
--- Part 23: Test Flames – 500W Vertical Flame Test Method for Tubular Polymeric
Materials;
--- Part 24: Guidance for Assessing the Fire Hazard – Insulating Liquids;
--- Part 25: Smoke Obscuration – General Guidance;
--- Part 26: Smoke Obscuration – Summary and Relevance of Test Methods;
--- Part 27: Smoke Obscuration – Small-Scale Static Test – Description of the
Apparatus;
--- Part 28: Smoke Obscuration – Small-Scale Static Test – Materials;
--- Part 29: Heat Release – General Guidance;
--- Part 30: Heat Release – Summary and Relevance of Test Methods;
--- Part 31: Surface Spread of Flame – General Guidance;
--- Part 32: Heat Release – Heat Release of Insulating Liquid;
--- Part 33: Guidance for Assessing the Fire Hazard – Ignitability - General Guidance;
--- Part 34: Guidance for Assessing the Fire Hazard – Ignitability – Summary and
Relevance of Test Methods;
--- Part 35: Corrosion Damage Effects of Fire Effluent - General Guidance;
--- Part 36: Corrosion Damage Effects of Fire Effluent - Summary and Relevance of
Test Methods;
--- Part 38: Toxicity of Fire Effluent - Summary and Relevance of Test Methods;
--- Part 39: Toxicity of Fire Effluent - Use and Interpretation of Test Results;
--- Part 40: Toxicity of Fire Effluent - Estimation of Toxic Potency - Apparatus and
Test Method;
--- Part 41: Toxicity of Fire Effluent - Estimation of Toxic Potency - Calculation and
Interpretation of Test Results;
--- Part 42: Test Flames – Confirmatory Tests – Guidance;
--- Part 44: Guidance for Assessing the Fire Hazard – Fire Hazard Assessment.
This Part is Part 21 of GB/T 5169.
This Part was drafted as per the rules specified in GB/T 1.1-2009.
This Part replaced GB/T 5169.21-2006 Fire Hazard Testing for Electric and Electronic
Products - Part 21: Abnormal Heat - Ball Pressure Test. Compared with GB/T 5169.21-
2006, the major technical changes of this Standard are as follows:
--- Add the purpose of the test method (see Clause 1 of this Edition; Clause 1 of
2006 Edition);
--- Add terms and definitions (see Clause 3 of this Edition);
--- Increase the accuracy requirements of the temperature measuring device (see
5.5 of this Edition);
--- Increase the type of test method, from the original only confirmatory test, add a
type of material pre-selection test (see Clauses 6 and 8 of this Edition; Clauses
5 and 7 of 2006 Edition);
--- Modify the observation method of test results (indentation) (see 8.4, 8.5 and
Figure 2 of this Edition; 7.2 and Figure 2 of 2006 Edition);
--- Add the provisions on the test report format (see Clause 11 of this Edition);
--- Add Annex A "Correlation between Ball Pressure Test and Vicat Softening
Temperature Test of ISO 306" (see Annex A of this Edition);
--- Add Annex B " Indentation Depth Method" (see Annex B of this Edition).
This Part uses the translation method to equivalently adopt IEC 60695-10-2:2014 Fire
Hazard Testing – Part 10-2: Abnormal Heat- Ball Pressure Test Method.
The Chinese documents that have a consistent correspondence with the international
documents cited in this Part are as follows:
--- GB/T 308.1-2013 Rolling Bearings – Balls - Part 1: Steel Balls (ISO 3290-1:2008,
NEQ);
--- GB/T 5471-2008 Plastics - Compression Moulding of Test Specimens of
Thermosetting Materials (ISO 295:2004, IDT);
--- GB/T 9352-2008 Plastics - Compression Moulding of Test Specimens of
Thermoplastic Materials (ISO 293:2004, IDT);
--- GB/T 11026.4-2012 Electrical Insulating Materials - Thermal Endurance
Properties - Part 4: Ageing Ovens - Single-Chamber Ovens (IEC 60216-4-1:2006,
IDT);
--- GB/T 16499-2008 The Preparation of Safety Publication and the Use of Basic
Safety Publications and Group Safety Publications (neq IEC Guide 104:1997);
Fire Hazard Testing for Electric and Electronic
Products - Part 21: Abnormal Heat - Ball Pressure Test
Method
1 Scope
This Part of GB/T 5169 specifies the ball pressure test as a method for evaluating the
softening temperature and accelerated material flow under load of polymeric materials
and parts of end products in their ability to resist abnormal heat. It is applicable to the
materials used in electrotechnical equipment, subassemblies and components, and to
solid electrical insulating materials except ceramics.
NOTE: The Ball Pressure test method is not appropriate for certain elastomers, foamed
materials, and other materials that tend to be soft at room temperature. Product Committees
are encouraged to evaluate these materials using other methods such as IEC 60695-10-3[3].
This basic safety publication is intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 104
and ISO/IEC Guide 51.
One of the responsibilities of a technical committee is, wherever applicable, to make
use of basic safety publications in the preparation of its publications. The requirements,
test methods or test conditions of this basic safety publication will not apply unless
specifically referred to or included in the relevant publications.
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) is applicable to this document.
ISO 293 Plastics – Compression Moulding of Test Specimens of Thermoplastic
Materials
ISO 294 (all parts) Plastics – Injection Moulding of Test Specimen of
Thermoplastic Materials
ISO 295 Plastics – Compression Moulding of Test Specimens of Thermosetting
...... Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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