GB/T 16799-2008 English PDF (GB/T16799-2008)

GB/T 16799-2008: Furniture leather
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GB/T 16799-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.140.30
Y 46
Replacing GB/T 16799-1997
Furniture leather
ISSUED ON. JULY 31, 2008
IMPLEMENTED ON. MAY 01, 2009
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Product classification ... 5 
4 Requirements ... 5 
5 Grading ... 6 
6 Test methods ... 6 
7 Inspection rules ... 8 
8 Marking, packaging, transportation, storage... 9 
Foreword
This standard refers to ISO/DIS 16131.2000 “Upholstery leather characteristics
- Furniture leather”.
This standard replaces GB/T 16799-1997 “Furniture leather”.
As compared with GB/T 16799-1997, the main changes of this standard are as
follows.
- Product classification is further divided from two categories into three
categories;
- CANCEL the “tensile strength” indicator;
- USE the “tear force” indicator to replace the “tear strength” indicator;
- CHANGE the “friction color fastness” test method;
- ADD the “alkaline sweat” rubbing color fastness index, respectively
SPECIFY the rubbing color fastness of smooth leather and suede leather;
- ADD such indicators as the “fastness to break”, “light resistance”, “wear
resistance”, “odor” and so on;
- ADD the limit requirements for harmful substances “banned azo dyes” and
“free formaldehyde”;
- MODIFY the product qualification judgment principle.
This standard was proposed by the China National Light Industry Council.
This standard shall be under the jurisdiction of the National Leather Industry
Standardization Technical Committee (SAC/TC 252).
Drafting organizations of this standard. Xingye Leather Technology Co., Ltd.,
China Leather and Footwear Industry Research Institute.
The main drafters of this standard. Cai Jianshe, Hu Bin, Sun Huiyong, Luo
Fengxu, Yuan Qinglu.
This standard replaces the standard previously issued as follows.
- GB/T 16799-1997.
Furniture leather
1 Scope
This standard specifies the product classification, requirements, grading, test
methods, inspection rules and markings, packaging, transportation and storage
of furniture leather.
This standard applies to all kinds of furniture leather.
2 Normative references
The provisions in following documents become the provisions of this standard
through reference in this standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this standard;
however, parties who reach an agreement based on this standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB/T 4689.20 Leather - Determination for adhesion of finish (GB/T 4689.20-
1996, eqv ISO 11644.1993)
GB/T 19941 Leather and fur-Chemical tests - Determination of formaldehyde
content (GB/T 19941-2005, ISO/TS 17226.2003, MOD)
GB/T 19942 Leather and fur - Chemical tests - Determination of banned azo
colourants (GB/T 19942-2005, ISO/TS 17234.2003, MOD)
GB 20400 Leather and fur - Limit of harmful matter
QB/T 2464.23 Determination method for color fastness of leather to
perspiration (QB/T 2464.23-1999, eqv ISO 11641.1993)
QB/T 2537 Leather - Tests for color fastness - Color fastness to cycles of to-
and-fro rubbing (QB/T 2537-2001, eqv ISO 11640.1993)
QB/T 2710 Leather - Physical and mechanical tests - Determination of
tensile strength and percentage extension (QB/T 2710-2005, ISO 3376.2002,
MOD)
QB/T 2711 Leather - Physical and mechanical tests - Determination of tear
load - Double edge tear (QB/T 2711-2005, ISO 3377-2.2002, MOD)
6.1.10 Banned azo dyes
It is tested in accordance with GB/T 19942.
6.1.11 Free formaldehyde
It is tested in accordance with GB/T 19941 spectrophotometry.
6.2 Sensory requirements
Under natural light, choose a line of sight that is visible to perform sensory test.
7 Inspection rules
7.1 Batching
An inspection batch is composed of the same variety of products produced by
the same variety of raw materials and produced in accordance with the same
production process.
7.2 Exit-factory inspection
The product shall be inspected before leaving the factory, and it can be exit-
factory after passing the inspection and being attached with certificate.
7.3 Type inspection
7.3.1 Type inspection shall be carried out in any of the following cases.
a) When there are major changes in raw materials, processes and chemical
materials;
b) When the it resumes production after a long-term production suspension
(six months);
c) When the quality supervision institutions at all levels of the country
propose to carry out type inspection requirements;
d) At the time of normal production, the type inspection shall be carried out
at least once every six months.
7.3.2 Number of samples
Three (pieces) are randomly selected from the products that passed the
inspection for inspection.
7.3.3 Qualification judgment
GB/T 16799-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.140.30
Y 46
Replacing GB/T 16799-1997
Furniture leather
ISSUED ON. JULY 31, 2008
IMPLEMENTED ON. MAY 01, 2009
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Product classification ... 5 
4 Requirements ... 5 
5 Grading ... 6 
6 Test methods ... 6 
7 Inspection rules ... 8 
8 Marking, packaging, transportation, storage... 9 
Foreword
This standard refers to ISO/DIS 16131.2000 “Upholstery leather characteristics
- Furniture leather”.
This standard replaces GB/T 16799-1997 “Furniture leather”.
As compared with GB/T 16799-1997, the main changes of this standard are as
follows.
- Product classification is further divided from two categories into three
categories;
- CANCEL the “tensile strength” indicator;
- USE the “tear force” indicator to replace the “tear strength” indicator;
- CHANGE the “friction color fastness” test method;
- ADD the “alkaline sweat” rubbing color fastness index, respectively
SPECIFY the rubbing color fastness of smooth leather and suede leather;
- ADD such indicators as the “fastness to break”, “light resistance”, “wear
resistance”, “odor” and so on;
- ADD the limit requirements for harmful substances “banned azo dyes” and
“free formaldehyde”;
- MODIFY the product qualification judgment principle.
This standard was proposed by the China National Light Industry Council.
This standard shall be under the jurisdiction of the National Leather Industry
Standardization Technical Committee (SAC/TC 252).
Drafting organizations of this standard. Xingye Leather Technology Co., Ltd.,
China Leather and Footwear Industry Research Institute.
The main drafters of this standard. Cai Jianshe, Hu Bin, Sun Huiyong, Luo
Fengxu, Yuan Qinglu.
This standard replaces the standard previously issued as follows.
- GB/T 16799-1997.
Furniture leather
1 Scope
This standard specifies the product classification, requirements, grading, test
methods, inspection rules and markings, packaging, transportation and storage
of furniture leather.
This standard applies to all kinds of furniture leather.
2 Normative references
The provisions in following documents become the provisions of this standard
through reference in this standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this standard;
however, parties who reach an agreement based on this standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB/T 4689.20 Leather - Determination for adhesion of finish (GB/T 4689.20-
1996, eqv ISO 11644.1993)
GB/T 19941 Leather and fur-Chemical tests - Determination of formaldehyde
content (GB/T 19941-2005, ISO/TS 17226.2003, MOD)
GB/T 19942 Leather and fur - Chemical tests - Determination of banned azo
colourants (GB/T 19942-2005, ISO/TS 17234.2003, MOD)
GB 20400 Leather and fur - Limit of harmful matter
QB/T 2464.23 Determination method for color fastness of leather to
perspiration (QB/T 2464.23-1999, eqv ISO 11641.1993)
QB/T 2537 Leather - Tests for color fastness - Color fastness to cycles of to-
and-fro rubbing (QB/T 2537-2001, eqv ISO 11640.1993)
QB/T 2710 Leather - Physical and mechanical tests - Determination of
tensile strength and percentage extension (QB/T 2710-2005, ISO 3376.2002,
MOD)
QB/T 2711 Leather - Physical and mechanical tests - Determination of tear
load - Double edge tear (QB/T 2711-2005, ISO 3377-2.2002, MOD)
6.1.10 Banned azo dyes
It is tested in accordance with GB/T 19942.
6.1.11 Free formaldehyde
It is tested in accordance with GB/T 19941 spectrophotometry.
6.2 Sensory requirements
Under natural light, choose a line of sight that is visible to perform sensory test.
7 Inspection rules
7.1 Batching
An inspection batch is composed of the same variety of products produced by
the same variety of raw materials and produced in accordance with the same
production process.
7.2 Exit-factory inspection
The product shall be inspected before leaving the factory, and it can be exit-
factory after passing the inspection and being attached with certificate.
7.3 Type inspection
7.3.1 Type inspection shall be carried out in any of the following cases.
a) When there are major changes in raw materials, processes and chemical
materials;
b) When the it resumes production after a long-term production suspension
(six months);
c) When the quality supervision institutions at all levels of the country
propose to carry out type inspection requirements;
d) At the time of normal production, the type inspection shall be carried out
at least once every six months.
7.3.2 Number of samples
Three (pieces) are randomly selected from the products that passed the
inspection for inspection.
7.3.3 Qualification judgment