QB/T 2706-2005Leather. Chemical, physical and mechanical and fastness tests. Sampling location (English PDF)

Foreword

This standard is the revision of QB/T3812.1-1999 "Leather-Laboratory sample -

Location and identification".

This standard modifies and adopts ISO 2418: 2002 "Leather - Chemical, physical and

mechanical and fastness tests - Sampling location", which is based on International

Leather Craftsmen and chemists Federation (IULTCS) standards IUP 2 and IUC 2.

QB/T 3812.1-1999 equivalently adopts ISO 2418:1972. The ISO 2418 has been revised,

which was replaced by ISO 2418:2002.

This standard was redrafted in accordance with ISO 2418:2002.

According to the actual situation in China, this standard has made the following

technical modifications, when adopting ISO 2418:2002:

- The "International leather industry terminology" (Second edition) was quoted in

the "Normative references" of the original standard; in this standard, DELETE the

chapter "Normative references", the subsequent chapters and articles are numbered

accordingly;

- DELETE the descriptive overhang paragraph in "Terms and definitions".

This standard has also made the following editorial changes:

- DELETE the foreword of the ISO standard;

- CHANGE the word "this international standard" into "this standard".

Compared with QB/T 3812.1-1999, the main changes of this standard are as follows:

- CANCEL some definitions in the original standard;

- CANCEL contents of Chapters 3 and 4 in the original standard;

- ADJUST the requirements for identification.

This standard was proposed by China National Light Industry Federation.

This standard shall be under the jurisdiction of the National Leather Industry

Standardization Technical Committee (SAC/TC 252).

Drafting organization of this standard: China Leather and Footwear Industry Research

Institute.

1 Scope

This standard specifies the location, where laboratory samples are cut, from a single

(piece) of leather, as well as the method for marking the cut laboratory samples.

This standard applies to leather, which is processed from various mammalian skins.

This standard does not apply to leather, which is processed from bird, fish, reptile skins.

2 Terms and definitions

The following terms and definitions apply to this standard.

2.1

Laboratory sample

Samples, which are taken from the areas specified in Chapter 4.

3 Location of laboratory samples

1 ~ 4.