QB/T 2472-2000 Soft polyvinyl chloride calendered tenter film for agricultural use
Some standard content:
Classification number G33
Reservation number 69162000
Light Industry Standard of the People's Republic of China
QB/T24722000
Soft polyvinyl chloride calendered tenter film for agricultural use 2000-03-30 issued
State Bureau of Light Industry
2000-08-01 actual bottle
GB/T 2472—2000
This standard is equivalent to the Japanese industry standard JIS K6732-19966 "vinyl film for clothing industry" standard. The standard is included in the measurement of the original thickness and the average thickness, the difference between the original thickness and the average thickness, and the difference between the original thickness and the average thickness. According to the specific characteristics of my country, the tensile strength, temperature resistance, and crack strength are higher than JI5K6732. The drip-free performance is added, and the water spray, heat loss rate, and adhesion resistance are required. The accelerated weather resistance is required. This standard is proposed by the National Bureau of Industry and Commerce. This standard is drafted by the National Plastic Products Standardization Center. This standard is drafted by the following responsible persons: Loubei Plastics Research Institute, which is a subsidiary of Xifeng Materials Co., Ltd. This standard is drafted by People: Nai Xiaobi, Zijie, Pin, Guan Libin, Li Yujun. YYKNaIKA
Light Industry Standard of the People's Republic of China
Agricultural
, Soft Polyvinyl Nitrogen Calendered Stretched Film
/T2472—2000
This standard specifies the product classification, requirements, test methods, inspection rules and marking, packaging, transportation and storage of soft polyvinyl nitrile calendered stretch film for agricultural use. It is applicable to the production of soft polyvinyl nitrile calendered stretch film (referred to as "thin film") by the method of calendering and stretching with deep-effect ethylene resin as the base, adding plasticizer, stabilizer and other additives. 21 Application Standard
5 The provisions contained in the standard shall constitute the provisions of this standard by being written in this standard. When this standard is revised, the versions shown are all narrow-effect: All parties using this standard should discuss and use the latest versions of the following standards: GB712828-1987 Inspection plan for batch testing and batch sample table (applicable to continuous batch inspection) B2918-1998 Standard environment for testing the state of the test pen of the material GET6673-1986 Determination of the length and width of the flower piece GB/T 13022—1991
QB/1130-1991
Test method for tensile properties of plastic film
Test method for right-angle cracking properties of plastic
Test method for low-temperature elongation of plastic
HG2-163—1965
3 Product classification
The classification of thin film is shown in Table 1.
Education and production
tt||Drip-free film
1 Requirements
4.1 Specification size
For use in agricultural products, flowers, saplings, etc. in sheds or wet spaces
4.1.1 The length and width shall comply with the requirements of Table 2. 4.1.2 The length of each roll shall be agreed upon by the supplier and the buyer. One break is allowed. The length of each section shall not be less than 30m. 4.2 The appearance shall comply with the provisions of Table 3.
4.3 The physical structure or properties shall comply with the provisions of Table 4: the drip-free film shall also comply with the provisions of Table 5. National Light Industry Bureau 2000-03-30 approved
20DD-0B-D1 implementation
tax benefits
no quota
multi-person film
nominal size,
2000--4500
limit difference
B2472-2000
public training size number
0.08-0.14
Note: [special requirements can be negotiated by both parties, thickness
limit deviation
benefit evaluation
average and degree difference
2 bay film within the storage period of the public hall 0.0mm due to the frequency of production and the increase in the original value table 3 | |tt||Spray frost"
water permanent help
sexual disappearance and settlement un1
permitted plate
rui point to all
divided enemy degree
drinking period"
piece/100gm×100mm
superior product
allowed amount
light part
setting slight difference
full sweat disease
not allowed
not allowed
0.3:~心.8am
0.3~U.mnt
Zhongning self-three products in low degree,
single chemical great addition of cross and scar resistance,
on the surface of the amine coating formed what fog collection.
The output of internal additives,
Stretch strength (paper/micro
Straight for Bo double change (chain/horizontal)
Low mixed long table (new spread)
Add dyeing phase fire
Wugongshanming
Yuyi thin storage
HTKoNer Ka-
Search and average again
America allows R use K
Product
Not allowed to use
Does not affect the use
Does not affect the quality
Does not affect the use
Not allowed
Not allowed
Light tube small flat
.3--c.sotn
No lubrication, human core
Excellent product
Method drop performance
After use, Dahai Energy
9B/T2472—2000
Sample surface 1. The integrated water record or water film starts to move when the time is too much to allow the sample inner surface record Water disease, there is a relatively obvious water reverse method: it should be used at the beginning of the storage period, and the extension period should not exceed 6, 5 test methods
5.1 Pregnancy details
5.1.1 Samples must be drawn from each batch of delivered products, and the sample must be cut and selected in the full film old inspection rate (about 2m), and the weaving direction of the film should be determined.
5.1.2 Pregnancy and width should be captured according to the provisions of Table 6, and the difference should be tested for physical machine performance and drip reduction performance.
As shown in Figure 1. The sample is assembled into three strips and the effective thickness test is performed. The information is measured at 5 points along the width direction, and the difference between the maximum or minimum value and the nominal thickness change is recorded in the range of 15 points using a 0.00 mask. is the control limit difference of the thickness.
In the 15-point measurement values recorded, the maximum values and the three minimum values are removed, and the arithmetic mean of the remaining 9 thickness points is taken as the average thickness of the film. Calculate the average thickness difference, and the difference between the thickness and the semi-automatic thickness is calculated according to formula 1), (%)-
Wherein, the negative value between the thickness and the average thickness, %:
flat thickness, m
t—9-point maximum measurement value, mm;
5.3 Width and length
9-point segment small measurement value, mm.
Anti-static GBT (673).
5.4 Appearance
In natural light According to the following, the corresponding measuring tools are used. -51
The old and weak surface misalignment ticket is used to measure the distance between the most and most outer edges of the single side of the sample with a steel tape measure of mm, and the two measured values are taken as the test results:. 5.5 Mechanical properties
5.5.1 Test rod preparation
According to the provisions of 5.1, take a sample that is long enough horizontally, and then prepare the sample according to the position shown in Figure 2. 5.5.2 The standard environment for the condition adjustment and test of the sample is the standard environment and normal deflection specified in GBT2918. The condition adjustment time is 4h: 1: 5.5.3 Tensile strength and elongation at break
According to the provisions of GB/T13022. Use a 1-axis test machine, and the test speed (no load) is (250±25) mm/mil. 3
5.5.4 Low temperature elongation
The test shall be carried out in accordance with the requirements of H02-162.
5.5.5 Heat loss rate
QB/T 2472--2000
Then determine the test value according to the actual test sample
Test value
Unit: mm
Take a 40mm×G0mm test sample and place it in a container filled with water (or silica gel) for 3 hours. After taking it out, measure the temperature to 0.0001, and then put it into a (10±2) non-heating oven for 6 hours. Place the test sample in the oven at 23°C and raise it to the same level as the mercury ball of the thermometer., the distance between the test piece and the water ball is not more than 80, the distance between the test pieces is not less than 30mm, take the test pieces from the box, and put them into the cooling room of the dryer to get the best result.
The heat loss rate is calculated according to formula (2).
n(%)me=m
Formula:
Heat mass of a sample, g
Heat mass of a sample after heating, g.
HKoNer Ka-
QB/T2472-2000
Calculate the average value of the test results, and keep the first decimal point. 5.5. Water-oil mixture
Take a piece of sample of 50 mm × 100 mm as shown in Figure 2, place it in a drying container filled with anhydrous calcium sulfate (or silica gel) for 4 h, take it out and weigh it to 0.0001 g, then put it into (50 ± 2) ℃ water and keep it for 24 h. The test piece should be completely immersed in water and should not overlap or pass through the wall of the container. Different samples should not be tested in the same container. Take out the sample, absorb it between two pieces of filter paper, then put it into the oven at (50±2)°C and keep it at 81°C, then put it into an anhydrous zinc sulfate (or silica gel) container and cool it to room temperature. Then weigh it, accurately weigh the total mass. The water extract is calculated according to (): 0.0001g, and the total mass is used for permanent extraction. %; tt||G. The original mass of the sample is:
The mass of the sample after water extraction is:
Calculate the average value of the whole sample and keep it confidential to the first place after the center point. n
1 tensile test Strength, new installation, toughness test details: 2-property elongation test: 1-corner crack test specimen: 4-water extractable film: 5-drag loss test Figure 2
5.5.B No performance
08/T2472-2000
Take three test pieces of 400m[n×700I, the sample surface should be flat, clean and not folded. 5.5.8.1 Test tape
No drip tester: as shown in Figure 3;
b) Thermometer;
c) Toughness meter.
Figure 3 Schematic diagram of filterless tester
AB=20Dm1
AE-115mm
A-120mm
CH=gnrrm
Gl1-38mm
5.5.8.2 Test steps
a) Inject water to a depth of 2 into the filterless tester water head and make it warm (temperature + 1) (after stirring evenly, observe the water temperature;
b) Place the tester in the direction of the light droplet tester A and seal it. The sample is flattened to form a "glass greenhouse" shape, and the stopwatch is started at the same time:
) Observe the change of the droplet source on the inner surface of the sample, and wait until the water gathers on the sample or the water film begins to flow, and record the stopwatch time. Take the best value of three test pieces as the test result. 5.5.9 The drip-free performance test within 6 months of use shall be carried out in accordance with 5.5.8, and the flow time shall not be recorded. 6 Inspection specifications
6.1 Fine batches
The film shall be inspected in batches. The films with the same raw materials, square, process and thickness of the same specification produced by Liancheng are below 50 mm.
5.2 Sampling
The random sampling method shall be adopted.
The specifications and appearance shall be in accordance with the provisions of G/T2828. The normal inspection sampling plan shall be adopted. The inspection level is II, and the standard quality level (AQL) is 6.5, see Table 6.
6.3 Inspection classification
6. 3. 1 Factory inspection, inspection items include all items except water discharge, heat loss rate and non-drip membrane performance within 60,000 hours, and inspection shall be carried out according to all technical requirements specified in this standard. During normal production, it shall be carried out at least once. When there is one of the following conditions, plastic inspection shall also be carried out) When the old raw materials and the second process have a great impact on the output performance during normal production: 6) When the product is produced for a long time:
) When the finalization of the product or the conversion of the old product! During production: d! When the relevant test results of the factory inspection and the above-mentioned type inspection are greatly different; d! When the national quality supervision agency puts forward the requirement of type inspection. Table 6
State quantity
S-- 90
91--150
151~·280
281--50u
6.4 Rules
6.4.1 Quantity of this unit to determine
Select the quantity
Arrange the effect
Qualified and unqualified
Unqualified
According to the appearance, refer to 4.1, 4.2, physical and mechanical properties according to 4.3. All the units are inspected, it is recommended that this unit is qualified.
6.4.2 Quality determination of the batch
Specification, appearance, performance test results, if there are any unqualified items: then the original batch should be re-sampled, and the unqualified items should be re-tested, and the batch should be considered as a potential batch. t.4.3 Determination of product quality grade
The lowest grade of all test results shall be used as the grade. 7 Marking, packaging, transportation and storage
1.1 Marking
The product should have product information on the packaging, and the certificate should indicate: a) product name and address:
b) product name
e) product specifications:
e! Creation or production batch number:
QB/T 2472·2000
+) Product flow main state and adopted standard number: g) Qualification inspector code:
h) Clean car (rubber 50kg90kg:
7.2 Packaging
The film should be rolled with hard tube or paper tube. If it is external (other support), it should be wrapped with film, cowhide or chemical packaging materials. 7.3 Transportation
The film should be prevented from mechanical magnetic twisting during transportation: It should be prevented from being drenched, rained, and polluted by the sun and station. 7.4 Temporary storage
The film should be kept in a clean, yin-reduced, and raised environment. The same should be done in the same place as the packaging. The pile should not be overloaded, and it should not exceed six layers at a time. The heat source should not be lowered. From the production H period, the storage time should be HKoNer Ka-2 Test steps: 1) In the drip tester, inject water with a depth of 2 and make it warm (1/2) (after stirring evenly); 2) Place the tester in the direction of the light drop tester A and seal it. 3) Observe the drip source on the inner surface of the sample and wait until the water gathers or the water film begins to flow. 4) Take the best value of three test pieces as the test result. 5.5.9 The drip-free performance test within 6 months shall be carried out according to 5.5.8, and the flow time shall not be recorded. 6 Inspection specifications: 6.1 Batch: The film shall be inspected in batches. The film with the same raw material, method, process and thickness of the same specification produced by Liancheng is less than 50 mm.
5.2 Sampling
Random sampling method is adopted.
Specifications and appearance are in accordance with the provisions of G/T2828. A normal inspection single sampling plan is adopted. The inspection level is II, and the standard quality level (AQL) is 6.5. See Table 6.
6.3 Inspection classification
6.3. 1 Factory inspection, inspection items include all items except water discharge, heat loss rate and non-drip membrane performance within 60,000 hours, and inspection shall be carried out according to all technical requirements specified in this standard. During normal production, it shall be carried out at least once. When there is one of the following conditions, plastic inspection shall also be carried out) When the old raw materials and the second process have a great impact on the output performance during normal production: 6) When the product is produced for a long time:
) When the finalization of the product or the conversion of the old product! During production: d! When the relevant test results of the factory inspection and the above-mentioned type inspection are greatly different; d! When the national quality supervision agency puts forward the requirement of type inspection. Table 6
State quantity
S-- 90
91--150
151~·280
281--50u
6.4 Rules
6.4.1 Quantity of this unit to determine
Select the quantity
Arrange the effect
Qualified and unqualified
Unqualified
According to the appearance, refer to 4.1, 4.2, physical and mechanical properties according to 4.3. All the units are inspected, it is recommended that this unit is qualified.
6.4.2 Quality determination of the batch
Specification, appearance, performance test results, if there are any unqualified items: then the original batch should be re-sampled, and the unqualified items should be re-tested, and the batch should be considered as a potential batch. t.4.3 Determination of product quality grade
The lowest grade of all test results shall be used as the grade. 7 Marking, packaging, transportation and storage
1.1 Marking
The product should have product information on the packaging, and the certificate should indicate: a) product name and address:
b) product namebzxZ.net
e) product specifications:
e! Creation or production batch number:
QB/T 2472·2000
+) Product flow main state and adopted standard number: g) Qualification inspector code:
h) Clean car (rubber 50kg90kg:
7.2 Packaging
The film should be rolled with hard tube or paper tube. If it is external (other support), it should be wrapped with film, cowhide or chemical packaging materials. 7.3 Transportation
The film should be prevented from mechanical magnetic twisting during transportation: It should be prevented from being drenched, rained, and polluted by the sun and station. 7.4 Temporary storage
The film should be kept in a clean, yin-reduced, and raised environment. The same should be done in the same place as the packaging. The pile should not be overloaded, and it should not exceed six layers at a time. The heat source should not be lowered. From the production H period, the storage time should be HKoNer Ka-2 Test steps: 1) In the drip tester, inject water with a depth of 2 and make it warm (1/2) (after stirring evenly); 2) Place the tester in the direction of the light drop tester A and seal it. 3) Observe the drip source on the inner surface of the sample and wait until the water gathers or the water film begins to flow. 4) Take the best value of three test pieces as the test result. 5.5.9 The drip-free performance test within 6 months shall be carried out according to 5.5.8, and the flow time shall not be recorded. 6 Inspection specifications: 6.1 Batch: The film shall be inspected in batches. The film with the same raw material, method, process and thickness of the same specification produced by Liancheng is less than 50 mm.
5.2 Sampling
Random sampling method is adopted.
Specifications and appearance are in accordance with the provisions of G/T2828. A normal inspection single sampling plan is adopted. The inspection level is II, and the standard quality level (AQL) is 6.5. See Table 6.
6.3 Inspection classification
6.3. 1 Factory inspection, inspection items include all items except water discharge, heat loss rate and non-drip membrane performance within 60,000 hours, and inspection shall be carried out according to all technical requirements specified in this standard. During normal production, it shall be carried out at least once. When there is one of the following conditions, plastic inspection shall also be carried out) When the old raw materials and the second process have a great impact on the output performance during normal production: 6) When the product is produced for a long time:
) When the finalization of the product or the conversion of the old product! During production: d! When the relevant test results of the factory inspection and the above-mentioned type inspection are greatly different; d! When the national quality supervision agency puts forward the requirement of type inspection. Table 6
State quantity
S-- 90
91--150
151~·280
281--50u
6.4 Rules
6.4.1 Quantity of this unit to determine
Select the quantity
Arrange the effect
Qualified and unqualified
Unqualified
According to the appearance, refer to 4.1, 4.2, physical and mechanical properties according to 4.3. All the units are inspected, it is recommended that this unit is qualified.
6.4.2 Quality determination of the batch
Specification, appearance, performance test results, if there are any unqualified items: then the original batch should be re-sampled, and the unqualified items should be re-tested, and the batch should be considered as a potential batch. t.4.3 Determination of product quality grade
The lowest grade of all test results shall be used as the grade. 7 Marking, packaging, transportation and storage
1.1 Marking
The product should have product information on the packaging, and the certificate should indicate: a) product name and address:
b) product name
e) product specifications:
e! Creation or production batch number:
QB/T 2472·2000
+) Product flow main state and adopted standard number: g) Qualification inspector code:
h) Clean car (rubber 50kg90kg:
7.2 Packaging
The film should be rolled with hard tube or paper tube. If it is external (other support), it should be wrapped with film, cowhide or chemical packaging materials. 7.3 Transportation
The film should be prevented from mechanical magnetic twisting during transportation: It should be prevented from being drenched, rained, and polluted by the sun and station. 7.4 Temporary storage
The film should be kept in a clean, yin-reduced, and raised environment. The same should be done in the same place as the packaging. The pile should not be overloaded, and it should not exceed six layers at a time. The heat source should not be lowered. From the production H period, the storage time should be HKoNer Ka-
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