1 Scope
This part of GB/T 2423 provides a standard procedure for determining the ability of a specimen to withstand specified severities of non-repetitive or repetitive shocks.
The purpose of this test is to reveal mechanical weakness and/or degradation in specified performances, or accumulated damage or degradation caused by shocks. In conjunction with the relevant specification, this may be used in some cases to determine the structural integrity of specimens or as a means of quality control (see Sub-clause A.2).
This test is primarily intended for unpackaged specimens and for items in their transport case when the latter may be considered to be part of the specimen. If an item is to be tested unpackaged, it is referred to as a test specimen. However, if the item is packaged, then the item itself is referred to as product and the item and its packaging together are referred to as a test specimen. GB/T 2423.43-2008 may be used for testing packaged products.
This standard is written in terms of prescribed pulse shapes. Guidance for the selection and application of these pulses is given in Annex A and the characteristics of the different pulse shapes are discussed in Annex B.
Wherever possible, the test severity and the shape of the shock pulse applied to the specimen shall be such as to reproduce the effects of the actual transport or operational environment to which the specimen will be subjected, or to satisfy the design requirements if the object of the test is to assess structural integrity (see Sub-clauses A.2 and A.4).
For the purposes of this test, the specimen is always mounted to the fixture or the table of the shock testing machine during testing.
Note: The term "shock testing machine" is used throughout this standard, but other means of applying pulse shapes are not excluded.
One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 2423.43-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Mounting of specimens for vibration, impact and similar dynamic tests (IEC 60068-2-47: 2005, IDT);
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Description of test apparatus
4.1 Required characteristics
4.2 Measuring system
4.3 Mounting
5 Severities
6 Preconditioning
7 Initial measurements and functional performance test
8 Testing
9 Recovery
10 Final measurements
11 lnformation to be given in the relevant specification
12 lnformation to be given in the test report
Annex A (Normative) Selection and application of pulse shapes - Guidance
Annex B (Informative) Shock response spectra and other characteristics of pulse shapes
Annex C (Informative) Comparison between impact tests
Bibliography
1 Scope
This part of GB/T 2423 provides a standard procedure for determining the ability of a specimen to withstand specified severities of non-repetitive or repetitive shocks.
The purpose of this test is to reveal mechanical weakness and/or degradation in specified performances, or accumulated damage or degradation caused by shocks. In conjunction with the relevant specification, this may be used in some cases to determine the structural integrity of specimens or as a means of quality control (see Sub-clause A.2).
This test is primarily intended for unpackaged specimens and for items in their transport case when the latter may be considered to be part of the specimen. If an item is to be tested unpackaged, it is referred to as a test specimen. However, if the item is packaged, then the item itself is referred to as product and the item and its packaging together are referred to as a test specimen. GB/T 2423.43-2008 may be used for testing packaged products.
This standard is written in terms of prescribed pulse shapes. Guidance for the selection and application of these pulses is given in Annex A and the characteristics of the different pulse shapes are discussed in Annex B.
Wherever possible, the test severity and the shape of the shock pulse applied to the specimen shall be such as to reproduce the effects of the actual transport or operational environment to which the specimen will be subjected, or to satisfy the design requirements if the object of the test is to assess structural integrity (see Sub-clauses A.2 and A.4).
For the purposes of this test, the specimen is always mounted to the fixture or the table of the shock testing machine during testing.
Note: The term "shock testing machine" is used throughout this standard, but other means of applying pulse shapes are not excluded.
One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 2423.43-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Mounting of specimens for vibration, impact and similar dynamic tests (IEC 60068-2-47: 2005, IDT);
Contents of GB/T 2423.5-2019
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Description of test apparatus
4.1 Required characteristics
4.2 Measuring system
4.3 Mounting
5 Severities
6 Preconditioning
7 Initial measurements and functional performance test
8 Testing
9 Recovery
10 Final measurements
11 lnformation to be given in the relevant specification
12 lnformation to be given in the test report
Annex A (Normative) Selection and application of pulse shapes - Guidance
Annex B (Informative) Shock response spectra and other characteristics of pulse shapes
Annex C (Informative) Comparison between impact tests
Bibliography
