|
PROPERTIES |
TEST METHOD |
VALUES FPS UNITS |
TEST METHOD |
VALUES METRIC UNITS |
| SPECIFIC GRAVITY | DIN 53508 | 1.4 ± 0.5 | ASTM D297 | 1.4 ± 0.5 |
| HARDNESS | DIN 53505 | 57 ± 5 SH A | ASTM D2240 | 57 ± 5 SH A |
| TENSILE STRENGTH ( MIN ) | DIN 53504 | 50 KG/CM2 | ASTM D412 | 711 PSI |
| ELONGATION AT BREAK ( MIN ) | DIN 53504 | 600% | ASTM D412 | 600% |
| COMPRESSION SET (70ºC/24 HRS/25% SET) (MAX) | DIN 53517 | 40% | ASTM D395 METHOD B | 40% |
| TEAR RESISTANCE ( ANGULAR ) MIN | DIN 53515 | 101 LBS/INCH | ASTM D624 | 18 KG/CM |
| CHANGE IN PROPERTIES AFTER | ||||
| HEAT AGEING ( 72 HRS. AT 70 ºC ) | ASTM D573 | |||
| — HARDNESS (PTS) | + 5 (MAX) | + 5 (MAX) | ||
| — TENSILE STRENGTH (%) | + 10/ – 10 | + 10/ – 10 | ||
| — ELONGATION AT BREAK (%) | + 10/ – 10 | + 10/ – 10 | ||
| POLYMER CONTENT (EPDM) | 100% | 100% | ||
| CHEMICAL RESISTANCE | ||||
| — OZONE | EXCELLENT | ASTM D 1149 | EXCELLENT | |
| — DILUTE ACIDS AND BASES | EXCELLENT | EXCELLENT | ||
| — CONCENTRATED ACIDS AND BASES | EXCELLENT | EXCELLENT | ||
| — OILS | EXCELLENT | EXCELLENT | ||
| — SOLVENTS | NOT RECOMMENDED | NOT RECOMMENDED | ||
| TEMPERATURE RANGE | -25º TO + 140º C | -25º TO + 140º C | ||
| COLOUR | WHITE | |||
Test Name – Determination of Amount of extractives Method: With reference to US FDA 21 CFR 177.2600
|
Extractants |
Test Condition |
Amount of Extractives mg/inch² |
Acceptable Limit mg/inch² |
Conclusion |
|
1 |
||||
|
Distilled Water |
70 °C for 2 hours |
10 |
20 |
Pass |
|
n-Hexane |
70 °C for 2 hours |
100 |
175 |
Pass |
Note:
- mg/inch2 denotes Milligram per square inch
- °C denotes Degrees Celsius
