Some standard content:
Classification number G33
Reservation number 9114-2001
Light Industry Standard of the People's Republic of China
QB/T 2517-2001
Disposable plastic drip irrigation tape
200t-07-16 Issued
China Light Industry Federation
2001-11-01 Implementation
QB/T2517-2001
Disposable plastic drip irrigation tape is a plastic water-saving irrigation device with a dripper, which is made of high molecular polymer as the basic material and is economically produced through plastic molds. Most of the inspection methods adopted in this standard adopt the internationally advanced test force method, among which the measurement of size, tensile strength, flow uniformity, and water resistance test are based on IS9261:1 1 Agricultural irrigation equipment dripper technical specification 67.2-19946 Micro-full water dispenser, micro-oil dispenser, micro-water belt
General science Recyclable plastic dripper is used for agricultural irrigation, forest greening, forestry, apple industry, water-saving engineering construction, furnace, etc.
This standard is issued by the General Business Department of China Federation of Industry and Commerce, and this standard is the national standard quality standardization center. The main drafters of this standard are Guo Jueren, Huang Rui, and Li Shuangsan, who are the leaders of the new Zhou Da Industry Co., Ltd. -YTYKANrKAca
Light Industry Standard of the People's Republic of China
Disposable Plastic Drip Irrigation Tape
QB/T 2517—2001
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking of disposable plastic drip irrigation tape. Packaging, transportation and storage.
The standard is suitable for the use of plastic as the main raw material, and is passed through a high-efficiency dripping belt with a dripper (referred to as "drip collection"). 2 Reference standards
The following standards contain the following provisions: The provisions of this standard are constituted by reference in this standard. At the time of publication of this standard, the versions shown are valid. All standards are publicly available, and the parties using this standard should explore the possibility of using the latest version of the standard.
R/29:8:1998 Plastic test state measurement and test standard environment GB/T17188- 1997 Industry condensation equipment full pipe technology specification and test method SL.T67.2-1994 Micro clarifier
3 definition
3.1 drip tape ertiltingtape
repair micro, micro expression
sheet, screen, manufacturing specification has been introduced 1 processing with holes and other equipment, the pipe wall is thin, the roll is formed into a whole belt as a drop belt,
3.2 working pressure tonina! workingpresnre by full chain section steam wide row of guarantee to obtain the water after the proper use of learning, 3 .3—Reform
Gong Di Man · Only once, for crops from the continent: 4 Product classification
The rated working pressure is divided into four categories, classified in Table 1:
Product category
Rated working pressure A9P3
5 Technical requirements
The inner diameter of the swimming pool shall comply with the provisions of Table 2.
Nominal inner diameter and grade limit deviation
Nominal diameter
Limit deviation
China Light Industry Federation 2001-07-16 Approved 16
2001 -11-01 implementation
GB/12511-2007
5.2 The nominal thickness of the lifting shall comply with the provisions of Table 3. Table 3 Nominal thickness and limit deviation
Nominal thickness
Limited deviation
53 The average wall thickness deviation of the dissolving step is %.
5.4 The difference between the heads is 5%,
5.5 Each coil and each section length shall comply with the requirements of Table 4 0.20
Table 4 Number and length
5.6 Color
Ditzi card is generally black,
5 7 Pull performance
Length tn
The standard dripper should be able to withstand a pull of 130N without breaking. The distance between the standard drippers after the test should not change by more than 5% relative to the distance before the test.
8 The difference between the drip flow rate of the dripper and the rated flow rate should not exceed 10%.
5.9 The drip irrigation water should not be exposed to oxygen and should not leak.
B Test method
B.1 Test conditions Test environment
The test should be carried out in accordance with the standard environment and the standard adjustment range in GB/T 2918. The state adjustment time should be more than:
6.2 Specifications and dimensions
6. 2. 1 Inner diameter
According to 9.3.3 of 0B/T17188-1997, the inner diameter of the tape is measured by inserting a new body (the angle is not more than 10°) at the end of the tape. The tape should not be enlarged. Make a circular mark on the tape along the end of the tape, and measure the vertical height of the mark.
6.2.2 Average standard deviation and wall limit deviation. Use a thickness gauge with an accuracy of 0.01mm to measure the thickness of the tape at four points with equal spacing. Calculate the average value. The thickness of the tape (such as the edge of the tape) is calculated by the formula (1).
At-Imu(tin-tc
Thickness limit deviation, mm:
The maximum value of the measured thickness, mm;
-YTYKANrKAca-
QB/T2517—2001
The minimum value of the measured thickness, mmt
Transverse thickness, mml.
The average wall deviation is calculated according to the formula: tsx100%
: tsx100%
——Average wall deviation, mm:
The arithmetic mean of the measured values of the thickness at the following points, mm. 6.23 Flow hole spacing
Core SL sheet 62 1994 5.4.3, use the degree of strength! mm, external water: 1 unequal spacing of the name of the test benefit has been the minimum value of the groove,
6.3 tensile test
According to 5L/T67.2-1994 5.5, on the 3 sections of 30 long drip purple, make two horizontal markings with a spacing of 20cm (including an outlet and a middle), fix it on the tension device of the tensile test machine, gradually apply tension, hold for 15min and then release the tension. Set aside for at least 30 minutes. Measure the standard flow. 6.1 Elimination flow uniformity test
According to the provisions of 9.1.1 and 9.1.2 of GR/1788-1997, and 8.1 of GB/T17188-1997, measure the flow of 25 dripping elements, the pressure at the entrance of the vertical ditch water element, and record the measured flow of each standard water element. Calculate according to formula (3) (4) (5) (6). -||t t||9-40/×100%
Formula: Average flow rate of the outlet, Lh: 4
The flow rate of the water outlet, Lh
nThe number of outlets (25);
—1Water diversion deviation coefficient:
Outlet flow standard deviation:
Rated flow, Lh;
. The average reading is the deviation from the rated flow. ·(3)
6.5Appendix water medical test
OB/T 2517-2U01www.bzxz.net
6. 5. 1 Test sample
5 sections of full seaken, each section contains at least 5 water stops, 5.5.2 Connect the drip joint to the water supply device, plug the end, fill the full belt with water, exhaust the air thoroughly, gradually increase the water pressure to 1.3 sieve frequency set. 1. fold pressure, maintain for 60 minutes, and the pressure fluctuation during the test is not more than 2%. 7 Inspection regulations
7.1 The product grade can only be shipped after being inspected and qualified by the quality inspection department of the manufacturer and accompanied by the product enterprise control certificate. 7.2 Batch
The same grid drip tape produced under the same raw materials, formula and process conditions is a batch, and each batch is not more than 1000 rolls. The roll is the sample unit.
7.3 Factory age inspection
7.3.15.1~5.6 According to Table 5, the water half of the meter is 1, and the qualified quality crown water half AQT. is 6.5. uInspect according to the provisions of the joint flash set by both parties.
Table 5 Arch sampling method
Batch standard solid recommendation
151--289
281--505
561-~t20n
Sample to large flower
Grade judgment level
No grade judgment number ratio
1.3.2 Standard design teaching single sample combined sample according to the test force method provisions capture this line 5.7, 5.8, 5.9 test 7.4 Formal control inspection
The standard inspection shall be carried out once a year for the technical requirements. If any of the following situations occurs, the type of product shall be withdrawn:
) New products or old products shall be transferred to the production form for plastic identification: b) There are significant changes in structure, materials, and technology, which may affect the performance of products: b) After a long period of suspension of production, when resuming production: When the results of the factory inspection are different from those of the previous inspection:
The national quality supervision agency proposes the requirements for type or inspection. 7.5 Determination of the standard
7:5.1 Determination of the quality of the sample unit
The items specified in this standard shall be inspected. If there is one item in the inspection result that does not meet the requirements of this standard, the sample shall be determined as unqualified.
7.5.2 Determination of delivery batch quantity
5.1--5.6 According to the provisions of Table 5, if there are unqualified test results in the tensile strength, flow uniformity and elastic resistance tests, they should be doubled in the original batch and the unqualified items should be re-tested. After all the unqualified items are corrected, the batch is judged to be qualified:
8. Marking, packaging, connection, initial storage
-YKNKA
8.1 Marking
The product marking should have
QB/T 2517—2001
Inspection certificate, including: product name, classification and specification, manufacturer, time, production phase, production and inspection number, adopted standard number:
b) Production manual, including: flow rate curve of dripper, rated flow rate of dripper, rated working force. 8.2 Packaging
Generally, the products are packed with kraft paper or plastic film. The packaging should be firm: or packed according to the requirements of the customers. 8.3 When the products are packed, they shall not be subjected to strong pressure, throwing and pressing. 8.4 Storage
The storage surface shall be neat and orderly, and the stacking height shall not exceed 3m. It shall be away from heat sources and shall not be stored for several days. The storage period is 1 year.
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