QB/T 2728-2005 Physical and mechanical tests on leather - Determination of atomization properties
Some standard content:
ICS59.14C
Classification number: Y45
Registration number: 15780-2005
Light Industry Standard of the People's Republic of China
QB/T2728-2005
Physical and mechanical testsDeterminatign of foging rharacleristics2005-03.·19 issue
National Development and Reform Commission of the People's Republic of China2005-09-01 implementation
QB/T2728-2005
This standard is modified to adopt the International Union of Leather Artists and Chemists (IULI) standard IUP Measurement of chemical properties of cementitious materials This standard was modified by the national standard group 1so to Io/170?:2004 Determination of chemical properties of cementitious materials (Leather-Physical and mechanical tests--Determining chemical properties of cementitious materials)
The small standard is consistent with the German national standard DEN75201:1992 Determining the chemical properties of cementitious materials in motor vehicles Vehicles) in accordance with the technical requirements of the standard based on the actual situation of our country, the following technical modifications are made: in the specification, the scope of application of "furniture leather" and other related research requirements is added, in addition to the method A, the filter car description, in addition to the appendix A, the description of the knife: "normative references" will be changed from the original standard to the current standard: - the original principle is changed, in addition to the reference literature: - the burning grid used in 3.2.1 and 4.2.1 is cancelled: - the reference "
" in 3.2.9 and 4.2.9 is deleted - the actual situation of analysis and inspection in my country is carried out: 3.2.13 stipulates that the level of acid and medium is "standard" , the method stops the test from happening:
for prevention. The standard will not only affect the use of the above products. In addition to the reference "notes" in 3.3.1 and 4.3.1, the "notes" in 3.53.3.3.4.7 of the process are converted into the meaning of this standard: the "notes" in 4.5 and 4.6" (operation requirements) are converted into the non-sequential standard article 4.4.4 to make it more convenient for the author to use it: 3.6.3 is changed to 3.6.1, the original 3.6.1 and 3.6.2 are sequentially changed to 3.6.2 and 3.6.3, 4.6.3 is changed to 4.6.1, and the original 4.6.1 and 4.6.2 are postponed to 4.6.2 and 4.6.3. The standard also made the following editorial revisions: deleted the child! The front of the standard:
"This standard" is a word for "this standard" instead of "" as the decimal point. "This standard was proposed by the China Light Industry Federation and promoted by the China Leather Standardization Committee (SATC2). The drafting unit of this standard is: Xinhui Yishou Industrial Co., Ltd., China National Leather Research Institute. The drafters of this standard are: Xiaosong, Yu Huaihai, Shi Miaocheng, Shi Jie, and the producers of this standard are:
1. Physical and mechanical tests for leather Determination of atomization properties QB/T2728-2005
This standard specifies the determination methods of leather performance, including reflection method (method A), mass method (force method B1. The standard applies to leather for automotive decoration, leather for furniture and other leathers with protective properties. The following referenced documents are used as references in this standard and become the terms of this standard. All referenced documents with a specified period and their accompanying amendments (excluding those in the automotive industry or other versions) are not applicable to this standard. However, the latest versions of these referenced documents can be used based on the requirements of this standard. From the outdated documents, the latest versions of them are used for the standard, QB/T27U6 Chemical, mechanical and chemical test sampling of belts QB/T270 Leather single material test machine sampling preparation and inspection method Section 3 Method A—Reflection method 3.1 Principle The sample is heated in the heat dissipation cup, and the reflection position of the condensed dew on the separation piece is expressed as the ratio of the reflection position of the blank test to the reflection position of the blank test. 3.2 Apparatus
3.2.1 Flat bottom analysis, made of hot plate glass, 1.11 half cup 11, flame retardant outer bar (state soil 2) mm, height (1905, small piece weight 450g
3.2.2 Constant temperature dissolution device should be able to maintain a constant temperature of (100±1)℃, and accommodate at least 3 beakers (3.2.1). Temperature scale: The edge of the temperature bath is 30mm high, and the beaker temperature range is 75mm. 3.2.3 Heat transfer filter, 100% system determination:
point: this material or, such as shadow The price of alcohol. The country is deep in water, and the evaluation is fast. 3.2.4 Cooling system, (211) the requirements of the cooling mass such as the plate) station (cooling the inner degree of the brain alone", the surface of the cooling should be flat, the cooling mass is enough to resist the burning in the floating party with leakage: : filled with cold mass stock 1kg
3.2.5 gold two not: outer diameter (01) mm: inner air (74±1/mm, An <10±)) mm: A to (5±1g: made of stainless steel.
dense village map, sex before the epidemic lemon collection, inside (95+1)mr. thickness <4.(0.1)mm, (65 on 5) RHD: 3.2.6
reflector, which is reflected at the entrance angle and 0°. 3. 2. 7
3.2.8 With time instrument, degree mint:
3.2.9 Dryness, with five rituals,
3.2.10 Test slope, the family needs to use the cloak or when the wind cloak is of the same quality, thickness (3.2)mm, minimum size 110mm×0mm, with scale on the surface, the plate can be used more than 10 times a month. 3.2.11 Grid, made of certified material, with mesh, thickness 10-02) mm, with a width of 400 nm, the center of the reflector must be (25+5) nm. 3.2.12 Grid is a condensate reflector. The actual size depends on the design. 3.2.13 Disodium disodium phthalate (DP), standard: 3.2.14 Washing. Glass detergent. 3.2.16 Hot water or high ion water. Ethanol. 3 2. 18 Lang. 3. 2. 19 de-pressing, ethanol I porridge
3.2.2D reading energy water, product group uschn) 1.0g drop alcohol (external purity: 27.11 profit 72.9 distilled water before liquid content three: North economic point has 6N/m clothing and industry six, 3.2.21 brush, diameter 8mm
3.2.22 mold, inside Sa is suitable for retreat like evil, support diameter (801mm, sender 3707 provisions 32.23 B if, talk, or calculated
3.2.24 method, set method, straight cup 125mm.3.3 version sample and 3.3.1 Sample preparation
3.3.1 Cut the sample according to QB/2716 with a die cutter 13.2.22). Divide the sample into two groups for 4 phases and 2 phases. If the test results of the first two samples meet the requirements, the second sample can be tested. 3.3.2 Scan the sample and store it in the medium (3.2.9). Use industrial oxygen and industrial combustion agent. If the test fails in the first phase, the sample should be placed in the medium. The humidity should be deep before the test. If the same effect can be achieved, the sample can be used. 4 cleaning method
3.4.1 In the downstream tiger (3.2.1, gold pressure/3.2.5), tripod to Figure: 3.2.6) West times or 4 live version live washing steps in the light, steaming or cloud ten water in the wet flushing flow and dry, 3.4.2 method to measure the reduction of glass pieces 3.2.10, people T (3.4.2.2) or machine washing (3.4.2.13.4.2.1 Lu flow reduction belt in the appropriate three washing agents (ie Shi 5) it recognizes the guest down the washing test point lost from the film, Sichuan steaming stay forever in the wet clean ten oceans benefit smooth,
3.1?2 Use alcohol/water to wash the test leather sheet, and wash it during the day. 3.4.3 Check the carbon sheet, and do not allow any stains. 3. Use a brush (3.2.21) to test the sheet surface with a thin line of water. If the sheet is cleaned within 2s, use 3.4.2.1 or 3.4.2.2 to clean it. If the edge of the line is small, then discard the bucket: the light shown is small and the water meter is used to measure the force. 3.4.5 Clean the outside of the beaker: use pliers or two cases (3.2.> on it. 3.4.6 In a clean room, dust-free environment, keep the receiver clean: 3.4.? The test will not be too light and will not be directly produced with your hands. The sample, clean and your instrument, etc., will return to H, absorb the production t r73.2.23)
3.5 Procedure
In the dense drop (3.2.2), a small amount of effective heat micro-body (3.2.3) is injected, and the liquid surface is 1mm away from the concentration cup (5? Soil 3). 3.5.1
3.5.2 Place in a constant temperature bath to raise the humidity of the liquid to (10 ± 1 °C). 3.5.3 Modify the invertor (3.2.7)
3.5.4 Place 1 clean piece of film with a black content <3.2.12) on a single surface and add 3.2.11 to it. 3.5.5 Turn the inverse timer: after 00 seconds, record the first time, do not repeat the value of the inverse timer twice, and calculate the average value of the 4 reflectors. 3.5.6 Put the sample into the clean wide cup <3.2.1) and then put the micro-ring (3.2.5) on the test surface. 3.5.7 Put the customer's sense 13.2.6) on the surface of the beaker (3.2.24). 3.5.9 Heat the test 5 times and repeat 3,3.4~-3.5.8 and probe. 3..10 Bring the cup back to a constant temperature of (100+1), place the cold plate (3.24) on the plate, and cool for 35.11 (18+5) minutes. Be careful to drop the nuclear elimination, water almost causes the placement (atomization - be careful, drum in the standard ten, free H light has:
business daily inspection service cooling situation: the surface mountain cooling particles, transparency, distribution, etc., record 35121.50 ten 52mim jin in the test report, and then 3.5.4.7.5.5 three return product feedback values. If the annual test block does not deviate from the average elimination of the two sample results book 2U%, use the second fine sample to conduct a new test, 3.6 calibration test
3 6.1 said 1TDF (7.2.13) (10.0-.1) into the final cup of ten net: :36.2 3.5.7~3.5.12 for parallel calibration test 3.6.3 3.5.2 3.5.6 on the T net rate sheet this emitter remaining 4 A value, calculate the difference F, ..3.64 will harm the book (3.2.6>. Sugar Rui and thick paper (3.2.24) in the order of the word in the wear cup pre-36.5 will block the cup shock cover stand (100 ± 1) constant temperature bath, grid clean plate (3.2.4) effect to the filter paper: cool down and then down. (180 up 5) m mountain, be careful grid cloud burning lips, release small standard bad cold, buy the effect cover (equalization of the side of the store!, free level 3.6.6
1.5U soil S1mml film, according to 2.5.4*3.5.6 re-integrate it, take the flat groove signal. 3.68 grant 3.7.1 calculate IT>P for the stock separation film atomization first: the bond position should be (77+3): Can fruit chemical he is not there, give food test dangerous service conditions, flat new reach test. 3.7 about the obvious expression
3.1 test case directly, according to formula 1) calculation, calibration test equal , connect formula (2) etc., the information is expressed as:
Wu Zhong:
R×100
Perform calibration test according to 3.5.6 for the first time: put the sample in, and test according to 3.5.12 for the reflection value of the film: R·-3.6.2 Perform calibration test for the first time: measure the reflection value of the steel film: R
Method 3.6.? Perform liquid 3.7.2 Calculate the average value of the atomization of all samples and express the result as half-mean. 4 Method R: Mass method 4.1 Change the sample to the standard method and add the cooling source to the control ring. The quality of the cooling material is measured. The results of the method are not comparable. 3 QH/T 27282DD5
4.2 Install
4.2.1 Flat beaker, made of agent, with ring mouth on top, beaker outer body (90+2>mm, height (1 state two 5), small mass 50g
4.2.2 Constant temperature treatment, constant humidity at 110+1, at least 3 beakers can be inserted into the salt bath: the height of the beaker should be 30mm, the bottom of the beaker should be 75mm.4.2.3 Liquid level, store 100g
Note: small outside the material, especially ethylene glycol is better, the step it cracks the rate of water, the market method is a false 44 cooling system, 11 water through the plate ( Lead) The part of the cooling island should be cooled by the temperature bath to determine the buoyancy of the temperature. Filled with water-cooled scraper, submerged 1*, 42.5 gold, outer diameter (8) mm, inner diameter (741) mm, height <10+1> mm, mass: 551) g, made of stainless steel
4.2.6 Need to be compared with the figure, ketone mold stock or polymer stock, inner (951) mm: thickness (4.0 (.1) mm. width (65-5) TRIID.4.2.7 half a day, confirmed n.01mg
4.2.8 timer, required 1min.
4.2.9 drying belt, with phosphorus pentoxide... 1.2.10 Test distance, the month has a glass or windshield rod back of the mass hall (3. center soil 0.2) m, the most people into 10mm to the most 13mm circular figure. bzxZ.net
: the method is no longer used as a continental technology film by mass reduction method to make the middle 4.2.11 film, : 0.03.00% mm, diameter 03 = 1m. 4.2.12
di (2-ethyl = - hexyl:) 1 aldehyde | dt- (2-cthyl-hexyl} phthale | DDP!, standard purity. Note: the source of the material teacher month one table leaf. Extended use should be forgotten, 4213 home harmony
city Nao detoxicant:
steam rumor to seek a dense, water,
4.2.16 case correction to, or one, or sealed in. mold, with - environment of the circular shape, diameter (50 soil 1) m in accordance with QB /27 Finish 4.2.17
fall line, light energy dismantle, prove 125mm.
dry group, aromatic rubber
43 Sampling and test sample preparation
4.31 Take the column according to QB/T2706, month model (4.2.17; 4.3.2 Purchase and store the samples, ten blasting devices (4.2.9), with phosphorus oxide as the thousandth original, less than 2 people: if the test is sucked, the next dry sample is taken and the test age is recalculated, The degree of the game range try to choose the evil card operation road creative feeling in the three explorations: Note: the overall stock, to achieve the same effect, you can use 4.4 cleaning || tt || 4.4.17 on the delivery cleaning right 4.2.1), gold two rings (4.2.5), rate through the figure (4.2.6) high-grade drum film (4.2.10) twice or nearly 10,000 when both come from the new device ten sand sources, use steamed water or large water orchid room overflow under the rinse and dry 4.4.2 in the method - store the cup surface and then, or cut off 4.4.3 Standard: Temperature, clean and no pollution in the test. 4.4.4 The test should not be used directly in the test room, clean the burning ring, etc., to the set, rice or 32.23!
4.5 Procedure
4.5.1 At the value of the welcome drop: 42.3). 1. The heat transfer liquid (4.2.3). The surface\burning ring edge is right distance: 57±3) mm. 4
4.5.2 Play the constant temperature bath, and the liquid temperature rises to? 10±1）℃.QB/T27282005
4.5.3 Weigh the lead foil (4.2.11 to ensure that the effective limit should not exceed 10mm4. 5.4 Place it in the clean beaker 14.2.1). Place the full reduction ring (4.2.5) in the test column:.r prevent the test from moving during the test.
4.5.5 Place the rate time post: 4.2.6), weigh the sales range: under light, share the film! 4.3.10 and filter paper 4.2.18! Put the sample in the cup
4. b. day x sample book 4.5.3.~4.5.5. 4.5.7 burn not placed in (1 (10 on 1) constant temperature, put the cold plate (4.24) on the paper, cool and 4.5. day (1%. + 0.2), the final original evil is large enough, put it in the ten drying machine 4.2.19), the change is <3.75-0.25)h
4.5. day new spherical lead mold, fine bowl 0.01mg, certificate record quality. 4.6 according to the standard test
4.8, 1 mi take D0F4.2. 1211.0±0. 1 more. Put it into a clean beaker, 4.6.2 core 4.5.4-4.5.9 into a calibration test
4.6.3 weigh the sample film (4.2.11, refined coffee rate 0.01mg, from weighing hand notes to the time of wearing the test ridge is called the heart but 1Umin4.day.4 with Figure 4.2.6), weigh the annual film (light two can be changed to 14.2.10) and filter red 4.2.18) items! Collect at the top of the ring.
4.6.5 Place the cooled sample on the paper (4.2.4) with the surface facing downwards after 16.0±0.2b. Carefully remove the foil from the top of the beaker or place it in a medium (4.2.10). The surface of the sample should still be (3.75-0.25) 1.
4.6.7 Weigh the sample with a single mass of 0.01mg and record the mass. 4. day,% with 30% condensate aluminum fan production quality cloud piece member initial element quantity, calculate the custom value, zero fog value is considered to be? 4.90 a 0.25 mg: rainbow frame coupon ratio is not accurate in this range: dangerous inspection test conditions, new society test adjustment 4.7 results of the expression
4.. test multiple value report formula, calibration test OP case value according to formula (4) fraud section, effective value in grams:
F,=m,\ m,
tiue -m -ml.
Wherein:
Carry out the test in 4.5.3, weigh the original mass of the sample, these units are grams (): (3)
After changing the method, continue to test in 4.5.9. The mass of the lead sheet with the excited object is measured, the unit is (mg) Pt
, and the initial items of the aluminum foil are measured in 4.6.2. The mass of the lead sheet with the excited object is measured in the calibration test: the minimum is picogram (m4.7.2 The translation value of each sample is equalized, and the result is about 5 Direct liquid display, accurate to 0.5 Test report
Test technology should include the following contents:
a) Sample number, company number, manufacturer (or standard QB/T2728-2005
Test method Method A, Method B;
Test results (Method A, Fe: in %; Method D, F: in m): Leakage conditions that occur during the test, such as (3.5.1 Table 3.5.1 Frequency, transparency, distribution, etc.): Abnormal phenomena that occur during the test:
Safety test method! The differences between this standard and the test method: Test personnel, period
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