This standard specifies the method for measuring the thickness of leather. This standard is applicable to all types of leather. This standard is applicable to the measurement of the thickness of whole leather and test specimens. QB/T 2709-2005 Physical and mechanical tests on leather - Determination of thickness QB/T2709-2005 Standard download decompression password: www.bzxz.net

ICS59,140
Classification number: Y45
Registration number: 15761-2005
Light Industry Standard of the People's Republic of China
QB/T2709—2005
Replaces QB/T3812.4-1999
Physical and mechanical testsDeterminnton of thickness
(IS0 2589:2002, Leather--Physical and mechanical testsDeterminnton of thickness
(IS0 2589:2002, Leather--Physical and mechanical tests Tests-Juclerminatianofthickness,MOD)2005-03-19 issued
National Development and Reform Commission of the People's Republic of China implemented on September 1, 2005
QB/T2T09-2005
This standard is a revision of QB/T3812.4-1999≤Technical Reform Physical Performance Test Early Determination. This standard adopts TS02589:2002 "Determination of thickness of leather" (Leater Physical and Mechanical Tests - Tetermination of thickness). This international standard is based on the International Union of Leather Artists and Chemists (ILLTCS) standard IUP4. QB/T3812.4-1999 adopts IS02589:1972, TS02589 has been revised, and 1SO2589:20m2 replaces [S02589:1972. The standard is based on 15025B9:2002 new draft. According to the actual situation of the technical standard model, TS025 was adopted on September 9, 2002, and the following technical modifications were made: the original referenced SO standard in the "Regulatory References" was changed to the referenced relevant standard; the "5*" in the "Inner Tower" was adjusted to 5.6. This standard has been edited and revised as follows: "This international standard" has been changed to "International Standard"; "use of decimal point instead of decimal point"; "Compared with 0B3812.4-1999, the main changes are as follows: 2 "Normative document"; 3 "Principle"; 5 "Preparation for sampling and trial selection" This standard was proposed by China Light Industry Federation and issued by National Standardization Technical Committee (SAC/TC252) of China National Leather and Footwear Industry Research Institute. Main drafter: Yue Guo.
This standard was first issued in October 1984 as the original national standard GB46R9.419R4, and was converted into the light industry standard QB/T JB12.4-1944 in April 1999. This is the first time it has been approved. This standard has been implemented since January 1, replacing the light industry standard QB/T3812.4-1999 issued by the State Bureau of Light Industry. 3.wwW.bzxz.Net
1 Scope
The standard for determination of leather thickness by physical and mechanical tests specifies the determination method of leather thickness. This standard applies to various types of leather. The standard is not applicable to the determination of the thickness of the whole leather and the test specimen. 2 Normative references
QB/27092005
The following documents have become the clauses of this standard through non-standard references. The referenced documents are dated, and all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the latest versions of these documents are used by the parties who have reached an agreement on the basic standard. The latest versions are applicable to this standard. QB/T2706-2005 Sampling parts for chemical, physical, mechanical and mechanical tests on leather (ISO2418:2002, MOD) QB/T2707-2005 Preparation and adjustment of specimens for physical and mechanical tests on leather (ISO2419:3002:M0): 3 Principle
The thickness of the leather measured by the thickness gauge under a specified load and within a specified time should be the thickness of the leather. 4. Apparatus
4. Tester
4.1.1 Scale, with 0.1 mm scale increments and an accuracy of 0.02 mm for the entire measuring range. 4.1.2 Test bench, with a horizontal surface, diameter (10.00 ± 0.05) mm, height (3.0 ± 0.1) mm, mounted on a rotating medical plane with a diameter of (50.0 + 0.2) mm. The test bench is designed to support a medium amount of pressure, so that it will not appear in the test bench. This can avoid the error in the test bench. 4.1.3 The pressure point is 10.00+0.05mm, and the test can be maintained and can be moved under the condition of labor. The negative pressure generated when the pressure break is in contact with the measuring plane is (393±10). The average moving distance can be read directly on the scale (.4.1.1) Note: The data and scale form a 49.1kPa500g/m 4.1.4 Rigid beams are used to support the scale (4.1.1), test bench (4.1.2) and pressure foot (4.1.3) 5 Sampling and specimen preparation
5.1 Samples taken according to Q2706-2005 are divided into five reverse libraries, and the measuring points are ten points in the shape of 5.2 Test specimens, measure the thickness of three points, and the measuring points are in the test position to the shape of 5.3 The details of the product can be determined: the order of the measuring points of the measuring machine is filled, and the measuring points are only cross-shaped. 5.4 The single hardness is derived to avoid external bending. Take a small sample and measure the thickness of three points. The measuring points are in the same shape. 5.5 Slide the sample and measure the original thickness of five points in each part. 5.6 Check and adjust the sample according to the provisions of Q/T2707-205. 6 Procedure
Place the test piece on a horizontal surface and place the sample on the test piece with the grain facing up (if the method is to determine the grain size, the test piece can be placed on the other side). Gently lower the pressure foot and read the reading within (5-1) seconds after the foot is in contact with the test piece, and then sink it. 1
QR/T2709—2005||tt ||7: Expression of results
The result can be calculated based on the condensation value, accurate to 0.01mm8
Test report
The test report should include:
This standard is compiled by:
Group name, interpretation type:
Detailed information of the product QB/T2706-2005: Inconsistency: Test element (gas tank.2U℃/65% or 23 or 50%2 thickness of the sample mm
Differences between actual operation and added standard
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