GB/T 13835.3-2009Test method for rabbit hair - Part 3: Percentage of foreign matter, coarse hair and loosen hair (English PDF)

Foreword

GB/T 13835 "rabbit fiber test method" consists of the following nine sections.

--- Part 1. Sampling;

--- Part 2. The average length and short hair ratio manual transmission method;

--- Part 3. impurity rate, coarse hair and loose hair rate;

--- Part 4. Regain oven method;

--- Part 5. single fiber breaking strength and elongation at break;

--- Part 6. diameter projection microscopy;

--- Part 7. whiteness;

--- Part 8. ether extract content;

--- Part 9. crimp performance. This section GB/T 13835 Part 3. GB/T 13835.3-1992 "rabbit impurity rate test methods" in this section instead. This section compared with the GB/T 13835.3-1992 The main changes are as follows:

--- Increasing the GB/T 6529 (Chapter 2 of this edition) normative reference documents;

--- Delete method summary (Chapter 4 of the 1992 edition);

--- Adds two types of hair, coarse, loose hair rate, hirsute rate and impurity rate terms (Chapter 3 of this edition);

--- Increasing the preset humidity, the humidity and atmospheric testing standards (Chapter 5 of this edition);

1 Scope

GB/T 13835.3-2009 is the Chinese national standard on test method for rabbit hair - part 3: percentage of foreign matter, coarse hair and loosen 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 23 April 2009 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 September 2009. Classification: ICS 59.060.01, CCS W20. 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.

GB/T 13835 provisions of this part of the rabbit impurity rate, coarse hair loose hair and method of measuring the rate of hand picking method. This section applies to the determination of rabbit impurity rate, coarse hair and loose hair rate.

2 Normative references

The following documents contain provisions which, through reference

GB/T 13835 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, we are encouraged to reach agreement under this section All parties that proposed to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 6529 Textiles Standard conditioning and testing atmosphere

GB/T 8170 repair value expressed about the rules and limit values and judgment

GB/T 13835.1 rabbit hair fiber test methods - Part 1. Sampling

3 Terms and Definitions

The following terms and definitions apply GB/T 13835 in this section.

3.1 Inclusion in the rabbit skin blocks variegated wool, vegetable matter, fecal dust and sand and other non-fibrous material rabbit.

3.2 On one fiber, both coarse and fine wool rabbit hair fiber characteristics.

3.3 Diameter greater than or equal 30µm, and there are two or more myeloid without hair curly fur fibers.

3.4 And easy to tear loose hair without damaging the quality of the hair mass divided by the total mass of the sample (after removing impurities), expressed as a percentage.

3.5 The total mass of coarse wool and two types of mass divided by the sample (after removing impurities), expressed as a percentage.

3.6 Quality rabbit inclusions divided by the total mass of the sample, expressed as a percentage.

4 Apparatus and appliances

4.1 Balance, dividing the value of 0.001g.

4.2 stainless steel tweezers, 120mm ~ 150mm.