This part of GB/T8804 specifies the test methods for tensile properties, including tensile yield stress and elongation at break. This part is applicable to polyolefin pipes for various purposes. GB/T 8804.3-2003 Determination of tensile properties of thermoplastic pipes Part 3: Polyolefin pipes GB/T8804.3-2003 Standard download decompression password: www.bzxz.net

G/T8804-20034 Determination of tensile properties of heat-resistant plastic pipes is divided into three parts: Part 1: General principles of test methods:
GB/T 8804.3-2003
Part 3: Hard deep polyvinyl chloride (FVC-U), chlorinated polyvinyl chloride (PVC-C) and high impact polyoxyethylene (PVCHT) materials, Part 3: Polyolefin flame pipes wwW.bzxz.Net
This part is based on Part 3 of GB/T880-2003, and adopts IS06259-3:1997 Thermoplastic materials - Determination of tensile properties - Part 3: Polyolefin pipes (English version). This part removes T1506259-3:!397 informative appendix A, appendix B, appendix 1, and appendix F. Compared with GB\1884.21988, the main changes of this part are as follows: 1: the specified pipe range is expanded from polyethylene material to type-A pipe; 2. The shape and size of the test specimens are changed from two types to three types. The size of the cutting specimen is different from that of the machine-made specimen. The test speed is changed from nm/min+2.5mm/min to one type according to the different specimen types.
4. The "Original" chapter is added:
This part replaces GRT8824.2-1988 from the date of implementation. This standard is proposed by the China Light Industry Federation. This standard is under the jurisdiction of the National Plastic Products Standardization Committee. This part is drafted by Huaye Guangchao Plastic Co., Ltd. and planned by Fujian Yatong New Materials Technology Co., Ltd. The main drafters of this part are Gao Jinyu, Zhou Lingren, and Fan Gu. 1
1 Fan Gu
Determination of tensile properties of thermoplastic plastic pipes
Part 3 Polyolefin materials
GB/T8804.3-2003
This part of GB/T8804 specifies the test method for the tensile properties of polyolefin (polyethylene, cross-linked olefins, aluminum and aluminum) thermoplastic pipes, especially the following properties: 1-Extend stress,
Elongation of the material,
This part applies to For the case of olefin pipes, the material shall be processed through the fine grinding of the specimens to a certain extent according to the present document; 2. General principles for test methods for the properties of plastic pipes can be found in CBT3804.12 Normative referenced documents
The clauses in the following documents become the clauses of this part through reference in this part: Any document with a specific date of application, its subsequent amendments (excluding errata) or revisions are not applicable to this part; however, the parties who have reached an agreement on this part shall study whether the new versions of these documents can be used. For all references to the specified period, the latest applicable part is GR/TRM4.1-20U3 Determination of tensile properties of thermoplastics Part 1 Test method (IDT15) 6259-J: 1Ss7)
C: B/T1C491992 Test method for tensile properties of plastics 3 Principle
GB18804.1 Chapter 3, applicable to the thermoplastic pipes included in this part. 4 Equipment
See GB/T88C4.1 Chapter 4,
5 Test specimens
5.1 Test specimen requirements
5.1.1 General
For pipes with a wall thickness of 12 mm or less, dumbbell cutting or mechanical cutting can be used. For pipes with a thickness greater than 2 mm, mechanical cutting should be used. 5.1, 2 The size of the test specimen is the same as the thickness of the material used for the test. The shape and size of the test specimen are selected from Figure 1 and Table 1, Figure 2 and Table 2; Figure 3 and Figure 3. Note 1: The test specimen in Figure 1 is similar to the type 41R test specimen in GB/T34512. A smaller style can be used in the delivery rate 2 test specimen of CB8304.22003+,
2: In order to avoid the test specimen from sinking in the solid, it is recommended that the end of the test piece be measured according to the following relationship: r - er. -15u.ut?
5.2 Preparation of the test specimen
The test specimen shall be prepared from the bar in accordance with the requirements of 5, 2.1 of GB/T1.1 and the following) or). a) Pipes with a wall thickness less than or equal to 12 mm shall be cut by cutting or mechanical processing according to the following types: GH/T BB04.3-2003. For pipes with a wall thickness greater than 5 mm and less than 12 mm, use type 1. For pipes with a wall thickness less than or equal to 5 mm, use type 2. b) Pipes with a wall thickness less than 12 mm shall be cut by cutting or mechanical processing according to the following types: GH/T BB04.3-2003. For pipes with a wall thickness greater than 5 mm and less than 12 mm, use type 1. For pipes with a wall thickness less than 12 mm, use type 3. Use mechanical processing to prepare the sample. AN Figure 1 Type 1 Sample Table 1 Type 1 Sample Dimensions Total Length Parallel Length Parallel Length Parallel Length Diameter Large Diameter Marking Line Distance Distance Distance Distance Distance Distance Distance Distance Figure 2 Type 2 Sample Unit Price is meter width 50=0, 5
Table 2 Type 2 specimen dimensions
Minimum total length
Parallel length
Parallel thickness
Minor radius
Large radius
Standard spacing
Loose missing amount
Figure 3 Type 3 specimen
Table 3 Type 3 specimen dimensions
Minimum total length
Parallel length
Parallel thickness
Standard spacing
Ratio of cutting height
GH/T 8804.3--2003
Unit: mm
25 ±1
Thickness of plate
Unit: mm
100±3
25 ±1
30—5
CB/T 8804.3—2003
5.3 Cutting method
Cutting method GB/T8804.1 5.2.2.2. According to the thickness of the pipe, select the corresponding cutter for type 1 or type 2 test specimen (GB/T8804.1 7, 5). Use the cutter at room temperature to evenly apply pressure to the inner surface of the specimen. 5.4 Machining method
See GH/18834.1 5.2.2.3,
6 Adjustment
See GB/T880:.1,
7 Test speed
The test speed is related to the pipe's ductility: See Table 4. If other speeds are used, the relationship between this speed and the specified speed must be stated. In case of objection, use the following heating speed: 4 Test speed
Nominal wall size of the forest m
8 Test according to the steps
Only the sample is made
Mechanical engineering
Effective cutting or machining
Functional processing
See GR/T R0,1 Chapter 10,
Note: The point type of fast car reaches the test value. The test is stopped before it breaks. The test results
G/T 68 G4.: Chapter 9
10 Test report
See G/T 834,1 Chapter 10. Test and type
Type 2
Type 1
Type 1
Test face speed/Lrien/min
100251088 1/
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