QB/T 2723-2005 Leather chemical tests - Calculation of tannin penetration, leather quality and combined tannins
Basic Information
Standard ID:
QB/T 2723-2005
Standard Name: Leather chemical tests - Calculation of tannin penetration, leather quality and combined tannins
Chinese Name:
皮革 化学试验 鞣透度、革质及结合鞣质的计算
Standard category:Light Industry Standard (QB)
state:in force
Date of Release2005-03-19
Date of Implementation:2005-09-01
standard classification number
Standard ICS number:Textile and Leather Technology >> 59.140 Leather Technology
Standard Classification Number:Light Industry, Cultural and Living Goods>>Leather Processing and Products>>Y45 Leather Processing and Products Comprehensive
Publication information
publishing house:China Light Industry Press
ISBN:155019.2771
Publication date:2005-09-01
other information
drafter:Zhao Liguo
Drafting unit:China Leather and Footwear Industry Research Institute
Focal point unit:National Leather Industry Standardization Technical Committee
Proposing unit:China Light Industry Federation
Publishing department:National Development and Reform Commission of the People's Republic of China
Introduction to standards:
This standard specifies the calculation method of tanning penetration, leather quality and combined tannins of vegetable tanned leather. This standard is applicable to vegetable tanned leather. QB/T 2723-2005 Leather chemical test Calculation of tanning penetration, leather quality and combined tannins QB/T2723-2005 Standard download decompression password: www.bzxz.net
Some standard content:
ICS58.140
Classification number, Y45Www.bzxZ.net
Preparation number: 15775-2005
Light Industry Standard of the People's Republic of China
QB/T 2723—2005
QB/T3R12.18—1999
Chemical tests-. Calculation of degree of tannage.leather substaace and bond organic 2005-03-19 Issued
National Development and Reform Commission of the People's Republic of China 2005-09-01 Implementation
1 Scope
QB/T2723—2005
Calculation of leather chemical test thickness, leather and binding substances This standard specifies the calculation method of the thickness, leather and binding substances of the model. This standard is applicable to plant leather content.
2 Terms and definitions
The following terms and definitions apply to the standard.
Bound substance
The substance that is bound to anti-collagen and not submerged in water in the plant content. 2.2
The sum of the leather and its combined substances.
Thickness
The number of membrane substances bound to each 10 parts of leather. 3 Calculation
3.1 Combined spiny matter
Total content, the value is expressed in %, calculated by formula (1): Combined release (%) = 100 (%) - [cortex (%) + aquatic organic matter (%) + total ash (%) + hydroxyl radical extract (%) + iodine extract (%) 3.2 Total quality
Total quality, the value is expressed in %, calculated by formula (2): Total quality (%) = Total quality (%) + combined spiny matter (%) 3.3 Transparency
Total transparency, the value is expressed in %, calculated by formula (3): Total content (%) × 100
Transparency (3) -
4 Expression of results
Cortex (%)
The result is retained to one decimal place, and the result of transparency is retained as an integer. ..()
QR/T2723-2005
5Test report
The test report should include the following contents:
a) Standard number;
b) Sample name, number and type;
e) Calculation results;
The differences between the actual operation and this standard. d)
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.