This standard specifies the location of laboratory samples cut from a single piece of leather, as well as the method of marking the cut laboratory samples. This standard applies to leather made from the skins of various mammals. This standard does not apply to leather made from the skins of birds, fish and reptiles. QB/T 2706-2005 Sampling Locations for Chemical, Physical, Mechanical and Color Fastness Tests on Leather QB/T2706-2005 Standard Download Decompression Password: www.bzxz.net

1cS 59.*40
Classification 5: Y15
Case No.: 15758-2005
Light Industry Standard of the People's Republic of China
QB/T27062005
Replaces QB/T3812.1-1999
Chemical, physical, mechanical and fastness testsSampling location
(IS0 2418:2002.Leather—Chemical, physical and icchanicaland fastness tests—Sampling location,MoD)2005-03-19 issue
National Development and Reform Commission of the People's Republic of China2005-09-01 implementation
Wood standard QD/3H12.[1 single test in the column, the location and the mark of the revision Q/2706-2005
water you temperature you change to use 241:2002 support with chemical, physical and mechanical and selection (1eeT-Chemical, lhysical and nechanieal and fastrestes[s—Saraptinglocation, the national standard is equivalent to the Union of Industrial Technologists and Engineers (ULICS) standard IUC2QHT3812.1-1990 and adopts ISO2418:1972. ISO2418 has been revised. ISO2419:2002 replaces ISO2418:1972. This standard is based on ISO2418:202:4 and is based on the actual situation and ISO2419:3002. The following technical modifications are made. The original standard used "national technical reference" (first paragraph) in the "normative document" of the original standard. This standard deletes the "normative reference" in the original standard. After that, the "technical reference" in the "technical reference" section is added. This standard also makes the following comprehensive modifications; - In addition to the previous product of the ISO standard, this standard also makes the following comprehensive modifications; - In addition to the previous product of the ISO standard, this standard also makes the following comprehensive modifications; - In addition to the previous product of the ISO standard, this standard also makes the following comprehensive modifications; The "Central China Source Standard" was changed to "Ben Han". Compared with 0B/T3812.1-19, the following changes were made: the definition of the quality standard was cancelled: the original standard was cleared, 3, 1. The requirements for your understanding were adjusted:
This standard is in line with the requirements of the National Industrial Cooperation Association (SAC/T252). Standard origin: Industry code skin Hua private belt The person in charge of this standard is Zhao Liguo. This standard was first issued in October 1984 as Beijing standard GB4689.1-1984, and was converted into light industry standard B/3812.1-1999 in April 1999. This standard is effective from the date of implementation, replacing the original light industry standard B3812.1-1909 for testing sample locations and markings of belts.
1 Specification
QB/T 27062005bZxz.net
Sampling Locations for Chemical, Physical, Mechanical and Color Fastness Tests on Leather This standard specifies the locations for cutting test samples from a single piece of leather and the marking of the cut test samples. This standard is applicable to leather made from the skins of mammals as above, while this standard is applicable to leather made from the skins of birds and other animals. 2 Terms and Definitions
The following terms and definitions apply to this standard. 2.1
Laboratory Samples
Take new samples from the specified areas in Section 4. 3 Location of experimental samples
3.1 Overview
3.1.1 Selection of samples
3.1.1.1 Sampling The area of ​​sample selection in the experimental room should not be affected by obvious types of injuries, such as lacerations and knife wounds during puncture. 3.1.1.2 Sampling procedure for physical, chemical and color fastness tests Sampling 3.1.2 Sampling for physical and color fastness tests
Samples for physical and color fastness tests shall be taken from the shaded area in Figure 1-4 or from the initial sampling area. 3.1.3 Sampling for chemical tests
3.1.3.1 Samples for chemical tests shall be taken from the shaded blue area in Figure 1-4. 3.1.3.2 If the minimum required sample size for chemical testing cannot be obtained, sample the sample from the corresponding part of the sample. If this still cannot be obtained, sample the sample from the adjacent part. 3.1.3.3 Except for the analysis, the sample that has not been tested in the material test can be used for chemical testing. In the analysis, the sample for chemical testing can only be obtained from the part that has been tested. 3.2 The sample size of the sample should be 100% square and/or HLMV. In smaller samples, the spacing of the individual samples can be appropriately reduced. When sampling from smaller samples, if the sampling method is changed, the difference should be kept to the same level as the original sample.
3.3 The sample size of the sample should be 100% square and/or HLMV. 3.4 Shoulder leather
According to the figure, take the square ABV without shadow strips and/or the shadow strip AG with shadow strips. 3.5 Abdominal leather
Connect the square block GR of the most original strips in Figure 4 and/or the square skin MNG and OR with shadow strips. QB/T27062005
: C, G, BC
=2A34F=K=CFGE-EHL
LRH: 16--(50:1 5)mm
Figure 1 whole year
a group: vertical G,
CA-AB,AF=ID:JR=EF,GR=EI:HLLKHN:AE（51>>mrm
Figure 2 half back leather
1 part, line: line line
QB/T27062005
RP=P5,DC-2AD:AE=(=AG:CP=20±2*mm4/:50±$mFigure 3 shoulder leather
AD is vertical to CA·AR;GA=FH=EF:G-IR=OU/4:LG=GN=HPGl/=(150±15）m:4R=20 ±2)mum Figure 4 Abdominal grass
Q/T2706-2005
Storage of laboratory samples
Laboratory samples should be free from contamination and the influence of local heat sources. Labeling of laboratory samples
5.1 Labeling of the direction of the sample
The sample should be marked with an arrow pointing to the head near the dorsal line. 5.2 Labeling
Laboratory sample labels should include the following contents: small label number:
b, sample name, number, type:
batch number of samples;
) When collecting
the number of samples:
actual interest "with this case"
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