|
PROPERTIES |
TEST METHOD |
VALUES FPS UNITS |
TEST METHOD |
VALUES METRIC UNITS |
| SPECIFIC GRAVITY | DIN 53508 | 1.45 ± 0.05 | ASTM D297 | 1.45 ± 0.05 |
| HARDNESS | DIN 53505 | 70 ± 5 SH A | ASTM D2240 | 70 ± 5 SH A |
| TENSILE STRENGTH (MIN) | DIN 53504 | 858 PSI | ASTM D412 | 50 KG/CM2 |
| ELONGATION AT BREAK (MIN) | DIN 53504 | 250% | ASTM D412 | 250% |
| COMPRESSION SET (70 ºC/24 HRS/25% SET) (MAX) | DIN 53517 | 50% | ASTM D395 METHOD B | 50% |
| TEAR RESISTANCE (ANGULAR) MIN | DIN 53515 | 84 LBS/INCH | ASTM D624 | 15 KG/CM |
| CHANGE IN PROPERTIES | ||||
| HEAT AGEING (72 HRS. AT 70 ºC) | ASTM D573 | |||
| — HARDNESS (PTS) | + 5 (MAX) | + 5 (MAX) | ||
| — TENSILE STRENGTH (%) | ± 20% (MAX) | ± 20% (MAX) | ||
| — ELONGATION AT BREAK (%) | ± 30% (MAX) | ± 30% (MAX) | ||
| VOLUME SWELL : AT 70º C FOR 72 HRS/IN | ASTM D 471 | |||
| IRM OIL NO.1 | 18% | 19% | ||
| IRM OIL NO.2 | 37% | 37% | ||
| IRM OIL NO.3 | 72% | 72% | ||
| POLYMER CONTENT (NEOPRENE) | 30% | 30% | ||
| CHEMICAL RESISTANCE | ||||
| — OZONE | FAIR | ASTM D 1149 | FAIR | |
| — DILUTE ACIDS AND BASES | GOOD | GOOD | ||
| — CONCENTRATED ACIDS AND BASES | FAIR | FAIR | ||
| — OILS | FAIR | FAIR | ||
| — SOLVENTS | NOT RECOMMENDED | NOT RECOMMENDED | ||
| TEMPERATURE RANGE | -30 º TO +90º C | -30 º TO +90º C | ||
| COLOUR | BLACK | |||
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