|
PROPERTIES |
TEST METHOD |
VALUES FPS UNITS |
TEST METHOD |
VALUES METRIC UNITS |
| SPECIFIC GRAVITY | DIN 53508 | 1.60 ± 0.05 | ASTM D297 | 1.60 ± 0.05 |
| HARDNESS | DIN 53505 | 65 ± 5 SH A | ASTM D2240 | 65 ± 5 SH A |
| TENSILE STRENGTH ( MIN ) | DIN 53504 | 716 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 ISO 815-1 | 30 | ASTM D395 METHOD B | 30 |
| TEAR RESISTANCE ( ANGULAR ) MIN | DIN 53515 | 196 LBS/INCH | ASTM D624 | 35 KG/CM |
| CHANGE IN PROPERTIES | ||||
| HEAT AGEING ( 72 HRS. AT 70 ºC ) | ASTM D573 | |||
| — HARDNESS (PTS) | + 5 (MAX) | + 5 (MAX) | ||
| — TENSILE STRENGTH (%) | + 10 / – 15 | + 10 / – 15 | ||
| — ELONGATION AT BREAK (%) | + 10 / – 20 | + 10 / – 20 | ||
| VOLUME SWELL : AT 70º C FOR 72 HRS/IN | ASTM D 471 | |||
| IRM OIL NO.1 | + 2 % | + 2 % | ||
| IRM OIL NO.2 | + 15% | + 15% | ||
| IRM OIL NO.3 | + 45% | + 45% | ||
| POLYMER CONTENT (NEOPRENE) | 100% | 100% | ||
| CHEMICAL RESISTANCE | ||||
| — OZONE | FAIR | ASTM D 1149 | FAIR | |
| — DILUTE ACIDS AND BASES | GOOD | GOOD | ||
| — CONCENTRATED ACIDS AND BASES | FAIR | FAIR | ||
| — OILS | GOOD | GOOD | ||
| — SOLVENTS | FAIR | FAIR | ||
| TEMPERATURE RANGE | -30º TO + 130º C | -30º TO + 130º C | ||
| COLOUR | WHITE – RAL 1015 | |||
| EXTRACTANTS | TEST CONDITION | AMOUNT OF EXTRACTIVES (MG/INCH²) | ACCEPTABLE LIMIT (MG/INCH²) | CONCLUSION |
| Distilled Water | at reflux temp’ for 7 hours | <0.1 | <20 | Pass |
| Distilled Water | at reflux temp for succeeding 2 hours of extraction | <0.1 | <1 | Pass |
| n-Hexane | at reflux temp’ for 7 hours | <0.1 | <175 | Pass |
| n-Hexane | at reflux temp for succeeding 2 hours of extraction | <0.1 | <4 | Pass |
Notes:
- mg/inch² = milligram per square inch
- °C = degrees Celsius
