This standard specifies the method for determining the shrinkage temperature of leather. This standard is applicable to all types of leather. QB/T 2713-2005 Determination of shrinkage temperature of leather in physical and mechanical tests QB/T2713-2005 Standard download decompression password: www.bzxz.net

ICS59.140
Classification number: Y45
Reservation number 1-15765-2005
Light Industry Standard of the People's Republic of China
QB/T 2713—2005
Generation QT3812.8-19
Physical and mechanical tests
Determinatlon of shrinkage temperature(ISD 3380:2002, Leather-—Physical and mechanical tests-Determinatlon of shrinkage temperalure up tu 100'C, MOD)2005-03-19 Issued
National Development and Reform Commission of the People's Republic of China 2005-09-01 Implementation
This standard is a test sample of QB3812.8-1999 shrinkage temperature of the skin section. QB/T2713-205
This standard is modified to adopt Section 0:2: Physical and mechanical test until the shrinkage of the risk of 1ePhysicalandrechanicaltcst-LiewrminationpfshrinkagetcmpcralureuplaIan> This international standard is the International Union of Reinforced Chemists (IULTCS) standard [6. QB/T3512.R1999 etc. ISO3380:1975, TSO31801 was revised, ISO3380:2002 replaced ISO3380:1975. This standard is a revision of IS03380:2002. According to the actual situation in my country, this standard made the following technical changes when adopting the international standard IS03380:2002: "Normative Reference Documents" 10: The original referenced TSO standard was written as the reference standard of my country: In order to prevent unnecessary reference to the standard in use, the reference "Note 1" in 5.3 was added, and the "Note 2" was retained: The two references A (only the source of the device) were cancelled. This standard also made the following editorial changes: -- The front of the ISO standard was deleted: -- The words "not an international standard" were changed to "this standard" "Standard"; "use decimal point"; "replace the symbol as decimal point"; "Compared with 1999, this standard 0R/T3812.81999, the following changes have been added: 2 "normative references" have been added: 5 "preparation of sample collection" has been added: 6 in the original standard and the single content has been deleted. This standard is proposed by China Light Industry Federation. This standard is under the jurisdiction of China Enterprise Standardization Technical Committee (SAC/TC252). The drafting unit of this standard: China Leather Footwear Industry Research Institute. The main drafters of this standard: China. This standard was first issued in January 194 as the original national standard (B 9.8-1984), and was converted into the industrial standard Q8/1312.8-1 in April 1999. This is the first time. From the implementation of this standard, it will replace the original The light industry standard QR/T3812.8-1999 issued by the National Light Industry Bureau - Determination of Leather Shrinkage Temperature - Scope - Determination of shrinkage temperature of leather physical and mechanical tests - Method for determination of shrinkage temperature of leather This standard is applicable to various types of leather. 2 Normative referenced documents - QB/T2713-2005 - The clauses in the following documents become the clauses of this standard through reference to this standard. For any dated referenced documents, their subsequent amendments (excluding errors) or revised versions shall not be used in this standard. However, the latest versions of these documents are encouraged to be used based on the research of the parties who have reached an agreement on the standard. For any undated referenced documents, the latest versions shall apply to this standard. GB/T6682-1992 Analysis of laboratory water standards and test methods QBT2706-2005 Chemical, physical, mechanical and color test on leather (ISO2418:2002, MOD) QR/T2709-2005 Determination of thickness of leather and mechanical test (ISO2589:2002, MOD) 3 Principle
The test piece is placed in water and heated. The water overflows at a certain heating rate and the test piece suddenly shrinks. The temperature at this time is called the shrinkage temperature. 4 Apparatus
4.1 Shrinkage temperature meter
Shrinkage temperature meter (see Figure 1) should include the following 5 parts: 4.1.1 Container, minimum volume 500mL, minimum depth 11Dmm, can be conditioned at a temperature above 100℃: 4.1.2 Sample fixture, small nail or fire, at (30±5)mm above the affected part of the container. 4.1.3 Test hook, movable hook or hook, one end is connected to the sample, the other end is connected to the connecting line passing through the pulley, and the other end of the connecting line is connected to a weight that is 1/2 of the weight of the movable hook. 4.1.4 Indicator, monitor the movement. Any movement of the test hook is transmitted and displayed through the pulley and indicator, and can be magnified by at least 5 and displayed on the indicator.
4.1.5 Thermometer, with a scale division of 1°C and an accuracy of 0.5°C. The sensor is placed near the middle of the sample and its range is suitable for the sample being tested.
4.1. Steamed stuffing water is deionized water, which meets the requirements of GB/6682-1992 for water treatment. 4.1.7 Heater, which can heat the steamed water or deionized water in the heat exchanger at a temperature of (2±.2)°C/m. 4.1.8 Stirrer, effectively stir the water in the container so that the temperature difference between the top and bottom of the sample does not exceed 1°C. QBT 27°3-2LL5
1-test,! -Just cat, 5, 4 small: 2 degree: send special, 6 a guest: 7 this piece: 8 piece Figure 1 shrinkage temperature positionbzxZ.net
4.2 thickness gauge
Taiwan 03-2005 regulations,
1.3I dryer
Set can hold the British wear of the Austrian device
4.4 vacuum pump
You in 2 half of the dye point in this reduced instead of non-4.5 slope glass test tube.
Inner diameter (), commercial 11m
5 take and sample preparation
5.1 take
put Q4/T2706--20052 regulations.
5.2 Cover tracking:
Send Q0/2709-2005 standard optical measurement sample thickness 5.3 Test tray preparation
Now 4 samples, 2 with parallel sides, 2 test sides, increase the size of the "smaller", the size of the sample is 502) 3.0.2, the sample volume is 3ml, the size of the sample is ummr2.0+0.2) mm: Note: Room into the standard gas
6 Procedure
1 Detailed fee 6.1.-6.3 for maintenance, wet reading kidney 6.1~6.3 fast work. QR/T2713--2005
6.1 A test piece (4.>) that does not need to be tested is introduced into (5.5-0.5) of water or deionized water. The test piece will flow into it. When necessary, the test piece can be tested with the highest pressure equalization to ensure that the sample is in the groove. 6.2 Insert the tube into the "operator (4.3>), ensure that the tube is in the appropriate state, hang the operator empty and maintain the vacuum degree at 4P with a Inr..-?micl.
63 to allow the gas to enter the instrument at a depth of 1, and continue to immerse the sample in oil-water for 11h~6h. 6.4 Fix one end of the test piece on the sample fixture (4.1.2, and the other end on the test piece (4.1.3). Connect the induction line and the strap to ensure that the test piece can be stretched in the correct position.
6.5 Insert a qualified test piece of water or a high pressure test piece into the test piece. Into the belt, make the water surface less than 30% of the original test column. If the pre-squeezing tube temperature or the top juice shrinkage humidity is less than 60%, the water rate is less than the predicted collection temperature. BR light water, keep the water temperature injection skin X (2 + 0.2) V / mm6. Record the temperature and machine readings for two times, and really make the test product reach the boiling temperature of the collection period. If the water sample is reduced, record the temperature at the time of comparison. 5. Monthly inspection to verify the best or the indicator with the corresponding temperature of the mountain practice, we will select the maximum length shrinkage of 0.3% when the temperature should not exceed the limit! The temperature recorded is the shrinkage temperature.
6.9 to 6.8 if the actual shrinkage temperature is not linked to the water content of the 5 change, the state of the result, the best condition of the main technology 6.1-6..
Test report
Read the technical specifications of the receiving parts and contain the following:
b) Part name, summary, type
e) Product details, sampling conditions that are inconsistent with QB/T2706-2005: d) Average value of the receiving temperature (c) Differences between the treasure and the technical standard.
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