| (1) SMOKE DENSITY TEST | Standard Specification | Test Equipment | Test Procedure |
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ASDM D2843
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Smoke Density Chamber With Specimen Holder, ignition system and photometric system complete | The Test Sample is exposed to flame at 40 psi pressure for 4 minute the light absorption date are plotted on graph as time versus smoke density(%) |
| (2) OXYGEN INDEX TEST/TEMPERATURE INDEX TEST | Standard Specification | Test Equipment | Test Procedure |
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ASTM D 2863 | Flammability unit with digital oxygen index recorder. | The sample 7 to 15 cm long 6.5 + 0.5 mm wide thick in a minimum concentration of oxygen on a N2 + O2 mixture just support candle like burning at room temperature |
| (3) HCL (HALOGEN ACID GAS) TEST | Standard Specification | Test Equipment | Test Procedure |
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IEC-754 PT. 1 | Tabular furnace and uniform 110 + 5 mm/min flow rate air flow meter. | 0.5-1.0 gram of the material from the cable sheth is burnt in ceramic tube inside a tubular furnace at 800 oC. The volume of corrosive gases (HCI) present in the combustion products are analyses chemically. |
| (4)FLAMMABILITY TEST | |||
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(a) Swedish chimney method | ||
| Standard Specification | Test Equipment | Test Procedure | |
| SS 424-14-75 Class F3 | Vertical steel tube with rectangular openings, lid and conical tray for ignition fluid | Burning flame from a measured quantity of ehana is applied on the 850 mm long cable for a calculated time and the under composed length from the top is measured. | |
| (b) Grouped vertical cables under fire condition. | |||
| Standard Specification | Test Equipment | Test Procedure | |
| IEEE -383 | Vertical tray with ladder arrangement ribbion gas burner and special temperature indicator. | The layer of cable mounted on the vertical tray is subjected to flame from a ribbon gas burner for a period of 20 minutes and then shut off. The flame should not propagate and burn the total height of eight feet long cables | |