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GB/T 21865-2008Standard test methods for determining average grain size using semiautomatic and automatic image analysis (English PDF)

用半自动和自动图象分析法测量平均粒度的标准测试方法

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Issued by

Standardization Administration of China

Level / Type

National · Recommended

Issue date

May 12, 2008

Implementation date

September 1, 2008

Scope

GB/T 21865-2008 is the English-translated version of 用半自动和自动图象分析法测量平均粒度的标准测试方法.

GB/T 21865-2008 — This standard specifies the basic method of measuring the average grain size, and grain intercept area metal and nonmetal polycrystalline material distribution.

This standard applies to single-phase and two-phase system and other specimen type axial elongation and grain structure. This standard also applies to other similar substance crystal structure, such as the material of the honeycomb structure.

This standard requires the use of semi-automatic or fully automatic image analysis instruments. This standard is only recommended as a test method, it can not determine whether to accept or material that is suitable for testing the scope of application.

This standard does not consider all trial-related security issues. Test measures should be responsible for their own safety and health-related.

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Document preview — GB/T 21865-2008

National Standard of the People's Republic of China

ICS: 13.300
Classification: A 80

Issued by: Standardization Administration of China

What this standard covers1
Document data2

What this standard covers

This standard defines the metallic and non-metallic polycrystalline material with an average grain size and grain size distribution intercept the basic measurement method. This standard applies to equiaxed grain structure type and extension -type single -phase and two-phase system specimens. This standard also applies to other similar crystal structure of the material, such as a cellular structure of the material. This standard requires the use of semi-automatic or fully automatic image analysis instruments. This standard only as a recommended test method, it can not determine whether to accept or by suitable test material scope of application. This standard does not consider all the relevant test security issues. Tests should be responsible for their own safety and health -related measures.

Document data

International classification (ICS): 13.300.

Chinese classification (CCS): A80.

Estimated length of the Chinese original: 28,234 words.

Adopted international standard: ASTM E1382-2004, IDT.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 19 pages — is available in the English PDF.

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