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GB/T 34520.2-2017Test methods for continuous silicon carbide fiber - Part 2: Diameter of single-filament fiber (English PDF)

连续碳化硅纤维测试方法第2部分：单纤维直径

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 1, 2017

Implementation date

May 1, 2018

Scope

GB/T 34520.2-2017 is the English-translated version of 连续碳化硅纤维测试方法第2部分：单纤维直径.

GB/T 34520.2-2017 is the Chinese standard "Test methods for continuous silicon carbide fiber - Part 2: Diameter of single-filament fiber".

Its scope clause reads: This section GB/T 34520 specifies the use of cross-sectional method (Method A), radial method (Method B) and micrometer method (Method C) test continuous Silicon carbide (siliconcarbide, SiC) single fiber diameter of the test environment, samples, test equipment and materials, test procedures, calculation of test results And test report.

This section applies to nearly round solid continuous SiC single fiber diameter test. Its clauses include terms and definitions; test environment; sample.

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Document preview — GB/T 34520.2-2017

National Standard of the People's Republic of China

ICS: 49.025.99
Classification: V 13

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and definitions
4 test environment
5 sample

1 Scope

This section GB/T 34520 specifies the use of cross-sectional method (Method A), radial method (Method B) and micrometer method (Method C) test continuous

Silicon carbide (siliconcarbide, SiC) single fiber diameter of the test environment, samples, test equipment and materials, test procedures, calculation of test results

And test report.

This section applies to nearly round solid continuous SiC single fiber diameter test.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

For all undated references, the latest edition (including all amendments) applies to this document.

GB/T 1446 Fiber Reinforced Plastics Performance Testing Methods

Textile and textile materials - Performance and test terms - Part 3. General

GB/T 4146.3 Textiles chemical fibers Part 3. Inspection terms

GB/T 8170 rounded repair rules and limit values of the representation and judgment

GB/T 18374 Reinforcement terms and definitions

Test methods for continuous silicon carbide fibers - Part 1. String sizing rate

Test methods for continuous silicon carbide fibers - Part 4. Tensile properties of bundles

3 Terms and definitions

GB/T 3291.3, GB/T 4146.3, GB/T 18374 and GB/T 34520.1-2017 defined terms and definitions apply to this file.

4 test environment

4.1

Standard test environment conditions According to GB/T 1446 provides that the temperature is 23 °C ± 2 °C, relative humidity of 50% ± 10%.

4.2

In other environmental conditions for testing, the test environment temperature and relative humidity should be specified in the test report.

5 sample

5.1

When using cross-section method (method A) diameter measurement, there is no need to remove the sample surface sizing agent. Radial method (method B) and micrometer method are used (Method C) diameter measurement, the sample surface sizing agent may not be removed, but should be described in the test report; not specified should be GB/T 34520.1-

2017 in 7.2 to remove the sample surface sizing agent.

5.2

Sample Before testing according to the provisions of GB/T 1446 24h state adjustment.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Cited by

GB/T 43760-2024Continuous silicon carbide fiber with low oxygen and high carbon

Similar standards

GB/T 46904-2026|GB/T 43128-2023|GB/T 37766-2019|GB/T 34517-2017|GB/T 34520.1-2017|GB/T 34520.3-2017

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