QB/T 2667.2-2004 Multi-hole integrated plastic pipes for buried communications Part 2: Polyethylene (PE) multi-hole integrated pipes
Some standard content:
ICs 83.140.30
Classification number, G33
Registration number: 15133-2005
Light Industry Standard of the People's Republic of China
QB/T2667.2—2004
Buried multi-hole plastics pipes for communicatior Part 2:Polyethylene(PE)multi-holepipes2004-12-14 Issued by the National Development and Reform Commission of the People's Republic of China on June 1, 2005. Implemented by the QB2667 Buried porous plastic pipes. It is divided into the following parts: Part 1: Rigid polyvinyl chloride (PV-2); Part 2: Polyethylene (PF) porous pipes. This part is the second part of QB267 "Buried porous plastic pipes". This part is proposed by the China Light Industry Federation. QE/T2667.2—2004 This part is under the jurisdiction of the Shandong Provincial Science and Technology Product Standardization Technical Committee, Pipes, Fittings and Valves Technical Committee. Ten drafting units of this part are: Shandong Provincial Science and Technology Industry Testing Center, Jinan Hongfa Telecommunication Engineering Plastic Products Co., Ltd., Fanzhou Mingsen Materials Co., Ltd., Chaofei Jile New Materials Science and Technology Co., Ltd., Qianbo Yuanhui Plastic Rolling Co., Ltd. The main contributors of this part are: Ying Xumei, Yue Qingyang, Chaoban, Zhang Yongniu, Gao Lin. This part is first published.
YKAoNYKa=
1Fan Lice||tt ||Porous one-piece plastic pipes for buried communication
Part 2: Polyethylene (PE) porous one-piece pipes QB/T2667.2-2504
This part defines the porous plastic materials with polyurethane resin as the main material, the extruded one-piece plastic pipes (hereinafter referred to as "materials"), product classification, requirements, test methods, inspection rules and markings, installation, transportation ...
The following documents shall become the provisions of this part through the use of technical documents outside the scope of this part: From the date of the note H, all subsequent amendments (excluding errors) or revisions shall not apply to this part, however, the latest versions of these documents may be used by the parties to the study that have reached an agreement on the changes to this part: For any referenced documents of the past, the latest version shall not apply to this part. GBT228.1-2H3 Design Sampling Inspection Procedures Part 1: Acceptance Limits (AOL) Inspection and Testing (ISO 2859-1:1909.r)
GR/T2918—1998
GB/1 6671-21
GB/T8802-2001
Standard environment for testing of material specimens or bearings (idt[SO391:1997] Determination of longitudinal curvature of long-term plastic pipes (eq1502505:1994) Determination of the temperature of thermoplastic materials and fittings S00:105GB89.04.3-2003 Determination of tensile properties of thermoplastic elastic materials Part 3: Flexible olefin materials 6253:1
GB/T8805
Determination of bending strength of flexible plastic pipes (GB/T805-1988, eVASMD212 21981)
GR/88 2 Pipe measurement method (GB/88061988VSO3126:1974) 3 Product classification
3.1 Section structure
Flower-shaped porous pipe
Grid closed porous pipe
3.2 Product marking
This part number
Sub-hole meaning inch meaning nominal outer thickness nominal inner thickness × effective hole material
Porous section structure (for grid multi-hole pipe): grid hole rate (D)
"The hole size is not less than that specified in Table 1, 2 and Table 3. The average effective hole efficiency of the size is %. 1
QB/T2667.2:2004
Typical pipe with inner hole of 32mm~nominal outer thickness of 2.2am and nominal inner diameter of 20mm/belt 7% CTPE32X2.2/2.×7QHT7i67.2—2XM3.3 Schematic diagram of cross-section characteristics and structural dimensions of pipes 3.3.1 Plum blossom-shaped pipes
3.3.1.1 Typical plum blossom-shaped porous pipe cross-section diagram Figure 1a ) Figure 1e)a
Some dynamic load-bearing capacity test dimensions of the external negative capacity test, one general size: one minimum external some not: one minimum internal villa Figure 1 Typical cross-sectional structure of plum blossom-shaped porous pipes shown in Figure 3.3.1.2 The structural dimensions of the flower-shaped porous pipe are shown in Table 1, Table 1 The structural dimensions of plum blossom-shaped porous pipes
Effective load
holes, upper, seven
Grid-shaped porous materials
24(26)
32 :33)
Space is abandoned
Typical grid-shaped household pipe structure is shown in Figure 2a and Figure 2c 3.3.2.1
Small village A
4-it is a village outside to get the test of the material giant sales gift good degree: the following size: the feeling of the small outside: the minimum thickness of the grid-shaped minimum internal thickness Figure 2, typical grid-shaped porous pipe structure diagram 2
YKAoNY Ka
33.2.2 Typical grid-shaped porous pipe rod structure dimensions are shown in Table 2. Table 2 Grid-shaped porous pipe structure dimensions
Multi-effect hole
32 533:
Material type auto annual summary table 3:
Xing called Zhu again
1. 1-- 2. 0
.1--3.n
The color of the pipe should be consistent,
is the minimum inner wall thickness deviation of the pipe.
3. 1--4, 0
is the color, the performance can be determined by the required effect,
QB/T2857.2
As far as possible, the outer wall thickness should be as small as possible!
Special category
Continue
4.2 Appearance
The outer wall of the material should not be deformed, and the pipe should not have gas, cracks, discoloration lines and anti-corrosion. The inner and outer walls should be smooth, the pipe end should be flat, and straight with the pipe axis. 43 Pipe size and weaving tolerance
4.3.1 The length of the pipe is generally 18m. m, 10m long (or coiled pipe, the supply and demand are determined by double doses. The maximum deviation is -0.4!:
4.3.2 The structural dimensions and weaving of the pipe shall be in accordance with the table), table, and table 3. The pipe size shall be less than 2 (excluding the pipe with the pipe inserted). The pipe is not allowed to have S-shaped weaving (except coiled pipe) 4.3.3
1. 4 Physical and mechanical properties
The physical and mechanical properties should meet the actual requirements. Physical and mechanical properties
Elongation at break
Characteristics of external mass performance
ky/2mum
Drag test tube
Specification of mechanical test tube
Test method
QB/T2667.22004
5 Test method
5.1 Test environment
Except for municipal regulations, the sample shall be tested under the conditions of (23±2) for not less than 24h in accordance with the provisions of GBT2918-1998. And the test shall be carried out under the conditions of northern weather. 5.2 Appearance inspection
Use the naked eye to inspect the sample, and the tube can be illuminated by a light source. If necessary, the sample shall also be inspected 5.3 Dimension measurement
5.3.1 Length
Measure with an accuracy of not less than 1mm.
5.3.2 Structural dimensions and deviations of pipes
5.3.2.1 Size of sub-holes in pipes (B
Measure with a ruler with an accuracy of not less than 1002mm. Collect 100 samples and measure each sub-hole of the same sample according to the provisions of G/TR6. For multi-shaped pipes, take the inner diameter direction of the measuring plate. For multi-shaped pipes, take the inner center. The minimum size of the hole is calculated. 5.3.2.2 The cross-sectional thickness of the porous body (e1, e2) is measured by a wall thickness gauge with an accuracy of less than 10.01mm or other measuring instruments of similar accuracy. Take three or more and measure the outer and inner walls of the same cross-section of the porous pipe according to the provisions of 86 (the joint of the plum blossom-shaped porous pipe and the corner of the porous pipe). The measurement position is the same as 5.3.2.1, and the inner and outer wall thickness or minimum value is calculated respectively. 5.3.3 Bending width
Measure according to the provisions of GB/T8805
5.4 Physical and mechanical properties
5.4.1 Tensile strength and elongation at break
Test according to GB/8804.3-2003. Test speed (50±5) 1mm/min. Plum blossom bar hole pipe, 5 test specimens are selected in turn along the outer surface of the test direction (if there are less than 5 holes, another section of pipe can be selected to obtain 5 test specimens): Grid twisted multi-injection. 5 test specimens are selected in turn along the outer surface of the pipe along the test direction, and the effective size of the test specimen is guaranteed to meet the test size requirements in GB/T8804.3-2003. bzxZ.net
5.4.2 Longitudinal shrinkage
Test according to GB/T6671-200! Test. Test temperature is 100℃, and test time is 1h. 5.4.3 External load resistance performance
5.4.3.1 Sample preparation
Take a (200±5) mm section from each of the three pipes as the test piece: place it in a standard catalytic environment at a temperature of (23±2)℃ for 24 hours, 5. 4. 3. 2 Test equipment
Test equipment that can provide a test speed of (5+1) mm/min, and the minimum size of the platen is not less than 200m5.4.3.3 Test steps
Place the test rod between the plates of the test equipment, so that the axis of the pipe is parallel to the pressure plate, and the A direction is consistent with the contraction direction. The test speed is (5±1) mm/min. When the deformation is 3% of the initial height of the opening during the lifting test, record the compression load of this pair: the test result is the half-mean of the two specimens.
5.4.4 Static friction factor| |tt||Take (100) + 0) mm material from a pipe as a sample, and place a relay (HDPE) with a diameter of (12.5 ± 0.5) mm and a length of (200 ± 5) mm as the wall port of the pipe. Then slowly pick up the pipe port with the cable out at a speed of (5 1) mm/min until the cable just moves. Measure the height of the pick-up at this time (Figure 3), and calculate the friction coefficient. Take the average signal of the three samples as the test result. The calculation formula is as follows: 1:4
HY KANY Ka=
Or use the angle measuring instrument to measure the ratio:
Tube material thickness, the unit is variable meter! And):
The angle between the pipe and the horizontal plane is mm.
Figure 3 Static rate factor test height diagram
6 Inspection specification
QB/T 2667.2-2004
A batch of products, the same force and the same process of continuous wrinkling of the same light-weight bamboo shoots is a batch, each batch of no more than 50 trays; the first production period is not 7 days 501, the 7th production number is a pallet. 6.2 Delivery inspection
6.2.1 Factory hot test items are 4.1, 4.2, 4.3 and the single tensile strength in Table 4, elongation at break, longitudinal shrinkage, and multi-load performance.
6.2.24.1, 4.2 and 4.3 are in accordance with GB 2828.1-2003. The normal sampling plan is adopted. The general inspection water quality limit (AQL) is 6.5, see supplement 5. Table 5 Acceptance quality limit (A01.) The sampling method with a sampling number of 8.5 requires acceptance Ac
: 5! --280
28: --500
M01:~: 200
[~3200
Single operation as the basis
Rejection number R
QB/T2667.2-2004
.2.3 In counting the relevant samples, randomly take (enough samples, and carry out the tensile strength, elongation at break, time recovery rate and external load resistance performance tests in 4.1:
6.3 Type inspection
Type inspection items have been the full stringent requirements of the fourth day. -Number of cases, it shall be carried out once every two years. If one of the following circumstances occurs, type inspection shall be carried out.
) New products or old products transferred to the factory for production and trial production and identification: b) Give structure. 1. When the material is relatively large and the product performance can be affected by changes in the fabric, the product will be produced quickly after long-term use. When the factory inspection results are significantly different from the secondary inspection results, the quality supervision agency shall submit a type inspection. 6.4 Judgment rules || tt || Jun According to the test method specified in this part, the inspection is carried out: the product quality is judged by the inspection results and technical requirements of the station. The color, appearance, and dimensions are inspected according to the requirements of 4.1, 4.2, and 4.3, and the judgment is made according to 5: When one of the physical and mechanical properties does not meet the requirements, double samples should be randomly selected for re-inspection of the item. If the product still fails to meet the standards, the batch is deemed to be unqualified. 7.1 Marking In addition to the specified markings, the product should have at least one marking: full name, trademark, date of manufacture: Each pipe should have at least one regular marking. 7.2 Transportation During loading and unloading, the product shall not be subjected to sudden pulling, throwing and weight. 7.3 Storage The storage area of the pipes shall be flat and neat, the stacking height shall not be more than 2 meters, and the distance from the heat source shall not be less than 1m, and the pipes shall be well protected.3 Type inspection
Type inspection items have been fully stringent requirements for the 4th day. -In general, it is carried out every two years. If one of the following circumstances occurs, type inspection should be carried out.
) New products or old products are transferred to the factory for production and trial production and type identification: b) For structure. Materials, 1. Art fabrics are relatively easy to change and can affect product performance) Products are produced after long-term post-production, "when there is a large difference between the factory inspection results and the secondary inspection results: When the quality supervision agency proposes a type inspection. 6.4 Judgment rules
According to the test methods specified in this part, the inspection is carried out: The received inspection results and technical requirements are used to judge the quality of the product. Color, appearance, and dimensions are inspected according to the requirements of 4.1, 4.2, and 4.3, and judged according to 5: When the physical and mechanical properties do not meet the requirements, double samples should be randomly selected for re-inspection of the item, If the product still fails to meet the standards, the batch is deemed to be unqualified. 7.1 Marking In addition to the specified markings, the product should have at least one marking: full name, trademark, date of manufacture: Each pipe should have at least one regular marking. 7.2 Transportation During loading and unloading, the product shall not be subjected to sudden pulling, throwing and weight. 7.3 Storage The storage area of the pipes shall be flat and neat, the stacking height shall not be more than 2 meters, and the distance from the heat source shall not be less than 1m, and the pipes shall be well protected.3 Type inspection
Type inspection items have been fully stringent requirements for the 4th day. -In general, it is carried out every two years. If one of the following circumstances occurs, type inspection should be carried out.
) New products or old products are transferred to the factory for production and trial production and type identification: b) For structure. Materials, 1. Art fabrics are relatively easy to change and can affect product performance) Products are produced after long-term post-production, "when there is a large difference between the factory inspection results and the secondary inspection results: When the quality supervision agency proposes a type inspection. 6.4 Judgment rules
According to the test methods specified in this part, the inspection is carried out: The received inspection results and technical requirements are used to judge the quality of the product. Color, appearance, and dimensions are inspected according to the requirements of 4.1, 4.2, and 4.3, and judged according to 5: When the physical and mechanical properties do not meet the requirements, double samples should be randomly selected for re-inspection of the item, If the product still fails to meet the standards, the batch is deemed to be unqualified. 7.1 Marking
In addition to the specified markings, the product should have at least one marking: full name, trademark, date of manufacture: Each pipe should have at least one regular marking
7.2 Transportation
During loading and unloading, the product shall not be subjected to sudden pulling, throwing and weight. 7.3 Storage
The storage area of the pipes shall be flat and neat, the stacking height shall not be more than 2 meters, and the distance from the heat source shall not be less than 1m, and the pipes shall be well protected.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.