Standard No.:	GB/T 4689.21-2008
English Name:	Leather - Physical and mechanical tests - Determination of the static absorption of water
Chinese Name:	皮革 物理和机械试验 静态吸水性的测定
Chinese Classification:	Y46    Furs and leathers
Professional Classification:	GB    National Standard
ICS Classification:	59.140.30 59.140.30    Leather and furs 59.140.30
Issued by:	AQSIQ; SAC
Issued on:	2008-7-31
Implemented on:	2009-5-1
Status:	valid
Superseding:	GB/T 4689.21-1996 Leather-Determination of absorption of water
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	90.0
Delivery:	via email in 1 business day

1 Scope This standard specifies a method for determining the water absorption of leather under static conditions. This standard is applicable to all leather. 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies. GB/T 6682-1992 Water for Laboratory Use - Specifications (neq ISO 3696:1987) 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) QB/T 2715 Leather - Physical and Mechanical Tests - Determination of Apparent Density (QB/T 2715-2005, ISO 2420:2002, MOD)

Foreword i 1 Scope 2 Normative References 3 Principle 4 Apparatus 5 Sampling and Test Conditions 6 Procedure 7 Expression of Results 8 Test Report