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GB/T 21189-2007 English PDF

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GB/T 21189-2007: Verification of pendulum impact-testing machines used for Charpy, lzod and tensile impact-testing of plastics
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 21189-2007	English	879	Add to Cart	6 days [Need to translate]	Verification of pendulum impact-testing machines used for Charpy, lzod and tensile impact-testing of plastics	Valid	GB/T 21189-2007

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Basic data

Standard ID	GB/T 21189-2007 (GB/T21189-2007)
Description (Translated English)	Verification of pendulum impact-testing machines used for Charpy, lzod and tensile impact-testing of plastics
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	N72
Classification of International Standard	19.060; 83.200
Word Count Estimation	35,347
Date of Issue	2007-11-14
Date of Implementation	2008-05-01
Adopted Standard	ISO 13802-1999, MOD
Regulation (derived from)	China Announcement of Newly Approved National Standards No. 12 of 2007 (No. 112 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the ISO 179-1, ISO 180 and ISO 8256, respectively, as described in plastic Charpy impact test, Izod impact test and tensile impact tests using a pendulum impact testing machines methods. This standard set only involves pendulum tester. The impact of the sample in the process of absorbing impact energy W (see 2. 13) is equal to the potential energy of the pendulum E (see 2. 12) and after the impact test the difference between the residual energy of the pendulum. Consider the loss of friction and air resistance (see Table 2 and 4. 6), the impact energy to be amended. The method described in this standard formula on test machine geometry and physical properties of the various parts of the test method. Some geometrical properties of testing the assembled machine is difficult to be tested, so the manufacturer responsible for these performance tests, and the testing machine can be provided for examination according to the standard reference plane. These methods in the test installation, the repair, or after the movement when the cycle test to be applied. This standard applies with the provisions of Chapter 4 of the geometric and physical properties of various capacity and (or) type of pendulum impact testing machines. Inspection according to the standard pendulum impact testing machine is suitable for all types of notched and unnotched impact test specimens.

GB/T 21189-2007: Verification of pendulum impact-testing machines used for Charpy, lzod and tensile impact-testing of plastics

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Verification of pendulum impact-testing machines used for Charpy, lzod and tensile impact-testing of plastics ICS 19.060; 83.200 N72 National Standards of People's Republic of China Plastic simply supported beam, Izod and tensile impact test Pendulum impact testing machines (ISO 13802.1999, Plastics-Verificationofpendulumimpact-testing machines-Charpy, lzodandtensileimpact-testing, MOD) Posted 2007-11-14 2008-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Preface Ⅰ 1 Scope 1 2 Terms and definitions 1 3 3 Measuring Instruments Test 4 Test 3 Machine 5 inspection cycle 17 6 Inspection Report 17 Appendix A (informative) Relationship between the length of each pendulum 18 Annex B (informative) frame and the pendulum mass ratio of the mass 19 Annex C (informative) pendulum impact during deceleration 21 Relations Annex D (informative) pendulum motion and movement between the frame 23 Annex E (informative) Charpy impact test machine with pendulum test model 28 References 31

Foreword

This revised standard adopts ISO 13802.1999 "Plastics pendulum impact testing machines simply supported beam, Izod and tensile impact test Test "(in English), including Technical Corrigendum ISO 13802.1999/Cor. 1.2000 (in English). The standard ISO 13802.1999 made the following minor modifications. a) modify the standard name; b) Remove the preface to the international standards; c) international technical standards errata content into the body, and they are involved in the provision of margin space with vertical double identity White Office; d) increasing the term "angle of attack" and definitions; e) Remove international standard Chapter 2, "normative references." Because in addition to the international standard Normative references ISO 8256.1990's Table 1, other data were all cited references, this, this standard made the following treatments. 1) The ISO 8256.2004 (ISO 8256.1990 revision) directly into Table 1 of this standard; 2) increase the "References." The list of international standards "Normative references" in the content as an information reference file column The "Reference" (using ISO 8256.2004 instead of ISO 8256.1990); f) Table 2 test types "stretch" to "stretch/simply supported beam"; g) The equation (11), equation (12) is Wf, 1, Wf, 2 and Wf, 3 were changed Wf, 1, Wf, 2 and Wf, 3. Please note that some of the content of this standard may involve patents. The standard release mechanism should not bear the responsibility to identify these patents. The Standard Appendix A, Appendix B, Appendix C, Appendix D and Appendix E is an informative annex. The standard proposed by China Machinery Industry Federation. This standard by the National Standardization Technical Committee tester (SAC/TC122) centralized. This standard was drafted. Changchun Institute of test machine, Chengde Precision Testing Machine Co., Ltd. Dahua tester. The main drafters of this standard. Guo Yongxiang, Wang Xinhua, Wang Tiemei. This standard was first published. Plastic simply supported beam, Izod and tensile impact test Pendulum impact testing machines

1 Scope

This standard has been specified in ISO 179-1, Plastics simply supported ISO 180 and ISO 8256 are described in the beam impact test, Izod impact Tensile test and impact test used pendulum impact testing machine test methods. This standard only relates to pendulum tester. During the impact of sample absorbed impact energy W (see 2.13) is equal to the potential energy of the pendulum E (see 2.12) difference between the residual energy after the impact of the sample and the pendulum. Friction loss and air resistance (see Table 2 and 4.6), the impact of Energy correction. The method described in this standard is about the testing machine geometry and physical properties of the various parts of the test. Some geometric properties of the assembled test Testing machine difficult to test on, so by the manufacturer responsible for these performance tests, and provided on the tester can be tested according to this standard Reference plane. When these methods are to be applied in the test installation, repair, after moving or periodic inspection. This standard applies to geometric and physical properties have specified in Chapter 4 of the various capacity and (or) the type of pendulum impact tester. According to the standard inspection pendulum impact testing machine is suitable for all types of notched and unnotched impact test specimens. Appendix A describes the various characteristics of the length of the pendulum, the pendulum relationship between potential energy and the moment of inertia of the pendulum. Appendix B shows the frame quality than the computer and the quality of the pendulum method, in order to avoid errors resulting impact energy. Appendix C describes the Charpy impact test, after the impact of the sample as the instantaneous rate of change of the pendulum impact energy function, and Given predetermined capacity Charpy impact energy measurement range. Appendix D rack chassis rigidity discuss issues in order to prevent the reaction force causes the pendulum motion of the rack results in resonance. Appendix E gives the size of the model test Charpy impact test machine used.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 Use standard or calibrated reference material, qualified instrument calibration verification tests. 2.2 Under specified conditions, to determine the magnitude of the measuring instrument or measuring system indicated by the corresponding standard or standards now known magnitude complex The relationship between a set of operations. 2.3 TP Pendulum position away from the vertical angle of not more than 5 °, to complete a swing (reciprocatingly) the time required, in seconds. 2.4 A little pendulum on this point in the swing plane on the specimen and the impact of vertical oscillating shaft no reaction.

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