| EPDM MEMBRANE BASED ON ASTM - D4637 | ||
|---|---|---|
| PROPERTIES | TEST METHOD | SPECIFICATION | 
| Tolerance on Nominal Thickness,% | ASTM D 412 | ± 10% | 
| Color | Visual | Black | 
| Hardness | ASTM D2240 | 65 ± 5 Sh A | 
| Tensile Strength ( min ) | ASTM D412 | 90 kg/cm2 | 
| Elongation at Break ( min ) | ASTM D412 | 300% | 
| Tear Resistance kg/cm | ASTM D624 (Method C) | 30 kg/cm | 
| Drop in physical properties - Ageing After 100C for 600 Hrs | ||
| - Tensile Strength min. | ASTM D - 412 | 10% | 
| - Elongation ( % ) | ASTM D - 412 | 30% | 
| - Tear resistance (kg/cm) | ASTM - 412 | 15% | 
| - Linear dimensional change max. % | ASTM D - 1204 | +/- 2% | 
| Ozone Resistance: On exposure to 100 ppm and Ozone in air 96 hrs. @ 40 C at 20 % strain | ASTM D 1149 | No crack | 
| Glass transition Temperature : | ASTM D - 746 | -55 | 
| Resistance Water absorption, after 7 days immersion in 70° C, % change in mass | ASTM D 471 | 4.0 | 
| Compression set, 22 Hrs. at 70°C | ASTM D 395 | 30% | 
| Specification No: ZRWP100/1 | Rev. No.: 9.8 | Rev. No.: 9.8 | 
| EPDM MEMBRANE BASED ON ASTM 6134 | ||
|---|---|---|
| PROPERTIES | TEST METHOD | SPECIFICATION | 
| Tolerance on Nominal Thickness,% | ASTM D 412 | ± 10 | 
| Color | Visual | Black | 
| Hardness | ASTM D2240 | 65 ± 5 Sh A | 
| Tensile Strength ( min ) | ASTM D412 | 90 kg/cm2 | 
| Elongation at Break ( min ) | ASTM D412 | 300% | 
| Abrasion Resistance ( max ) | ASTM D5963 | 250 mm3 | 
| Compression Set (70° C/24 hrs) (max) | ASTM D395 (Method B) | 34% | 
| Tear Resistance (Angular) min | ASTM D624 (Method C) | 30 kg/cm | 
| Resistance to Heat Aging | ||
| - Tensile Strength min. | ASTM D - 412 | 85 kg/cm2 | 
| - Elongation ( % ) | ASTM D - 412 | 210 | 
| - Linear dimensional change max. % | ASTM D - 1204 | ± 1 | 
| - Brittleness temperature °C | ASTM D 746 | -45 | 
| Resistance water absorption, after 166Hrs. Immersion @ 70 ° C | ||
| % change in mass | ASTM D 471 | 4.0 | 
| Water Vapor Permeability Max. per-mills | ASTM E 96 | 3.5 | 
| Specification No: ZRWP100/10 | Rev. No: 9.8 | Rev. No: 9.8 |