GB/T 25880-2010Measurement of fallen hair for fur - Method of instrument for fallen hair (English PDF)

Foreword

The standard proposed by the People's Republic of China Ministry of Agriculture. This standard by the National Standardization Technical Committee of animal husbandry. This standard was drafted. the Ministry of Agriculture Animal fur and products Quality Supervision and Testing Center (Lanzhou), Chinese Academy of Agricultural Sciences, Lanzhou Livestock And Veterinary Institute. The main drafters of this standard. elegant piano, often Magnolia, Xi Bin, Dutian Qing, Li Hong, Guo Tianfen cattle Chun-e, Wang Hongbo, Liang Lina. Fur hair loss hair loss tester Test Method Method

1 Scope

GB/T 25880-2010 is the Chinese national standard on measurement of fallen hair for fur - method of instrument for fallen hair, in the field of textile and leather technology. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 10 January 2011 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 June 2011. Classification: ICS 59.140.20, CCS B45. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This standard specifies the principle of measuring the amount of fur, lint-free method lint tester, operating rules. This standard applies to beaver, fox and mink fur other implementation.

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 6529 Textiles Standard conditioning and testing atmosphere

GB/T 8170-2008 revised value represents about rules and limit values \u200b\u200band judgment

3 Terms and Definitions

The following terms and definitions apply to this standard.

3.1 The amount of hair loss weightsoffalenhair Under specified conditions, the total amount of samples per 100cm2 fur hairs and brush rubbing off the hair and velvet, in units of mg/100cm2. Principle

4 On a fixed area, after a certain pressure, so that the hair and brush friction is measured by the total amount plush fur shedding.

5 Instruments

5.1 fur hair loss tester.

5.1.1 fur brush lint tester mechanical transmission, making both straight-way brush grinding motion.

5.1.2 Test fur length. 270mm, 210mm, 150mm.

5.1.3 Brush reciprocating speed. 26 times/min.

5.1.4 Brush Size. 75cm × 60cm.

5.1.5 Counter range. 1 to 999 times.

5.1.6 Pressure on the brush hairs of. 8.83 × 104Pa ± 40Pa.

5.3 a stainless steel plate. 550mm × 160mm × 1mm.

5.4 A balance. accuracy 0.0001g.

6 Standard atmospheric testing and the humidity

6.1 temperature, humidity and implemented in accordance with the provisions of GB/T 6529's.

6.2 The humidity. tile samples before testing fur, wool face exposed in the test standard atmosphere, the humidity less than 24h.

7 Sampling

Sampling sites should be in the fur center back position, the projection area is not less than the instrument drain board area.