SCOPE OF APPLICATION | 기술 표준 ENGINEERING STANDARD | SHT/SHTS |
ALL询盘范文 | 1/58 |
ESTABLISHED | MATERIAL SPECIFICATION | SPEC No. |
POLYMERIC MATERIALS RESEARCH TEAM | MS 200-41 |
TITLE: TEST STANDARD – SOFT VULCANIZED RUBBER |
CONTENTS 1.SCOPE 2.TEST ITEMS夜来香花语 3.GENERAL TEST CONDITIONS 4.TESTING 4.1 HARDNESS TEST 4.2 TENSILE TEST 4.3 AGING TEST 4.4 COMPRESSION SET TEST 4.5 OIL RESISTANCE TEST 4.6 TEAR RESISTANCE TEST 4.7 OZONE RESISTANCE TEST 4.8 COLD SHORTNESS TEST 4.9 BEND TEST 4.10 IMPACT RESISIENCE TEST 4.11 LOW ELONGATION STRESS TEST 4.12 METAL ADHESION TEST 4.13 PEEL STRENGTH TEST 4.14 PERMANENT EXTENSION SET TEST 5.OTHERS |
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a | EMS40706 | RETYPING | ALL | 11.23.04 | H.O.KIM |
| 海南三亚温度 | 870708 | ISSUE OF ENGLISH SPECIFICATION | ALL | JUL.08.'87 | |
SYM | EO NO | DESCRIPTION OF CHANGE | REV.PAGE | REV.DATE | REV.BY |
ESTABLISHMENT 1985. 02. 21 | 一朝回到解放前REFERENCE | PREPARED BY SIGNED H.O.KIM | CHECKED BY SIGNED B.K.MIN | APPROVED BY SIGNED T.W.HWANG |
ORIGINAL FILED AT IPIS (ES/MS MANAGEMENT SYSTEM) |
11-18-04 | 11-18-04 | 11-22-04 |
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1F-SG-00016 HYUNDAIㆍKIA MOTOR
1.Scope
This specification applies to the test standard required to specify the quality of soft vulcanized rubber.
2.Test Items
The test items required in this specificaton shall be listed as follows :
(1)Hardness Test
(2)Tensile Test
(3)Aging Test
(4)Compression Set Test
(5)Oil Resistance Test
(6)Tear Resistance Test
(7)Ozone Resistance Test
(8)Cold Shortness Test
(9)Bend Test
(10) Impact Resilience Test
(11) Low Elongation Stress Test
(12) Metal Adhesion Test
(13) Peel Strength Test
(14) Permanent Extension Set Test
3.General Test Conditions
3.1 Normal State of Laboratory :
+10
-0
The normal state of laboratory shall be as a rule at 20 ℃ and the test temperature shall be reported.十万个为什么的读后感3.2 Normal State of Test Specimens :
Test specimens shall be, as a rule, allowed to stand at least 24 hr after vulcanization and 1 hr or more in the normal state before test.
3.3 Rounding of Test Result :
The test results shall be rounded in accordance with KS A 0021 (Rules for Rounding Off of Numerical Values) and indicated in accordance with the digit in Table 1.
TABLE 1
Test Item | Measurement | Test Result Indication |
Tensile Strength (kgf/㎠) Elongation (%) Tensile Stress (kgf/㎠) 机灵的拼音Elongation Set (%) Hardness (graduation) Peel Strength (kgf/㎝) Metal Adhesion (kgf/㎠ or kgf/㎝) Tear Strength (kgf/㎝) Compression Set (%) Impact Resilience (%) Oil Resistance (Percentage by weight or by volume) Low Elongation Stress (㎏/㎠) Low Temperature (℃) Tear Length (㎜) | Integer Integer Integer Integer Integer One decimal One decimal One decimal One decimal Integer One decimal One decimal 谬论- One decimal | 因为是医生 Integer Significant Figures : 2 Integer Integer Integer One decimal Integer Integer Integer Integer One decimal One decimal Integer One decimal |
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3.4 Record :
The applied conditions shall be reported in the test results.
4.TESTING
4.1 Hardness Test
(1)Purpo
This test is intended to measure the hardness of vulcanized rubber. As a rule, a spring type durometer (types A and C) shall apply to this test.
(2) Test Specimens
Prepare a specimen 12㎜ or more thick as a rule for A type ; if less that 12㎜ thick, place two or more specimens face to face preferably to make 12㎜ or more.
For C type, u a specimen 6㎜ or more thick ; if less than 6㎜, place face to face prefera
bly to make 6㎜ or more. If a surface to be measured(1) is not smooth, it shall be sanded to get smooth.
Note (1) : The surface to be measured shall be wide enough to permit the presr plane of the durometer at least to be covered by the said surface.
(3) Tester
U spring type hardness tester, type A or type C. An example of them is shown in Fig.1.
FIG. 1
When the presr plane(2) comes in contact with the test specimen surface, this hardness tester is to indicate the distance, by which the rubber surface brings back the presr foot(4) projecting beyond the center hole of the presr plane by means of spring pressure(3), as hardness in the graduation(5).
The tester shall be inspected at least every 3 months.
Note :
(2) The presr plane shall be square to the presr foot and have a center hole to permit the presr foot to get through. The diameter of the presr plane shall be 10㎜ or more.
(3) The tolerance on the graduation and the standard line (Fig.3) indicating the relation between the presr foot displacement and spring force shall be ±8 g for type A ; ±20 g for type C. No free play shall exist between the movement of the presr foot and that of the pointer.
