1 Scope
This standard specifies a method for determining the dynamic water resistance of leather.
This standard is applicable to all flexible leathers such as leathers intended for footwear uppers.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods (GB/T 6682 - 2008, ISO 3696:1987, MOD)
QB/T 2706 Leather - Chemical, Physical and Mechanical and Fastness Tests - Sampling Location (QB/T 2706-2005, ISO 2418:2002, MOD)
QB/T 2707 Leather - Physical and Mechanical Tests - Sample Preparation and Conditioning (QB/T 2707-2005, ISO 2419:2002, MOD)
3 Principle
A test piece is formed into the shape of a trough and flexed whilst partially immersed in water. The time taken for water to penetrate through the test piece is measured. The method also allows the percentage mass of water absorbed and the mass of water transmitted through the test piece to be determined.
Foreword i
1 Scope
2 Normative References
3 Principle
4 Apparatus
5 Sampling and Sample Preparation
6 Procedure
7 Expression of Result
8 Test Report
1 Scope
This standard specifies a method for determining the dynamic water resistance of leather.
This standard is applicable to all flexible leathers such as leathers intended for footwear uppers.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods (GB/T 6682 - 2008, ISO 3696:1987, MOD)
QB/T 2706 Leather - Chemical, Physical and Mechanical and Fastness Tests - Sampling Location (QB/T 2706-2005, ISO 2418:2002, MOD)
QB/T 2707 Leather - Physical and Mechanical Tests - Sample Preparation and Conditioning (QB/T 2707-2005, ISO 2419:2002, MOD)
3 Principle
A test piece is formed into the shape of a trough and flexed whilst partially immersed in water. The time taken for water to penetrate through the test piece is measured. The method also allows the percentage mass of water absorbed and the mass of water transmitted through the test piece to be determined.
Contents of GB/T 22890-2008
Foreword i
1 Scope
2 Normative References
3 Principle
4 Apparatus
5 Sampling and Sample Preparation
6 Procedure
7 Expression of Result
8 Test Report
