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GB/T 6976-2007Test method for measure length of the wool staple natural formation (English PDF)

羊毛毛丛自然长度试验方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 27, 2007

Implementation date

March 1, 2008

Scope

GB/T 6976-2007 is the English-translated version of 羊毛毛丛自然长度试验方法.

GB/T 6976-2007 is the Chinese standard "Test method for measure length of the wool staple natural formation". Its scope clause reads: This standard specifies the test method for determination of the state of nature under natural wool staple length.

This standard applies to the determination of natural wool staple length. This standard also applies to other animal hair. Its clauses include terms and definitions; tools; sampling.

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Document preview — GB/T 6976-2007

National Standard of the People's Republic of China

ICS: 59.060.10
Classification: B 40
Replacing: GB/T 6976-1986

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

1 Scope
2 Normative references
3 Terms and Definitions
5 Tools
6 Sampling

1 Scope

This standard specifies the test method for determination of the state of nature under natural wool staple length.

This standard applies to the determination of natural wool staple length. This standard also applies to other animal hair.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 8170 numerical rounding rules

3 Terms and Definitions

The following terms and definitions apply to this standard.

3.1

When a pair of wool fiber without stretching, curling unspoiled, measured along the axis of staple obtained staple length.

3.2

Greasy hair taken as a whole, chiseled tow.

3.3

Top planar hair bundle.

3.4

Conical hair bundle.

3.5

Top it showed a braid-like staple.

Principle 4

Length measurement instrument with a clump of hair samples obtained in the natural state length measurement to calculate the average length of its distribution parameters.

5 Tools

Velvet panels, steel ruler (precision value 1mm), take the model.

6 Sampling

6.1

gross grant from randomly selected batches of samples in accordance with the method and amount of the corresponding product standards required.

6.2

batch samples at random from the laboratory sample, sample weight of not less than 4kg.

6.3 will be divided into laboratory samples, etc

after mixing 2 parts, one of which was used as sample preparation.

......
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

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Editions of GB/T 6976

Edition	Title	Revision	Status
GB/T 6976-2007	Test method for measure length of the wool staple natural formation	current edition	Current
GB/T 6976-1986	Test method for measure length of the wool staple natural formation	previous edition	Superseded

This page sells the current edition, GB/T 6976-2007. Earlier editions are listed for reference only.

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