Conductive and Compressive Heat Resistance Tester

Product introduction:

1.1 This test method is used to measure the thermal-protective properties of materials that provide thermal insulation when contact is made with hot surfaces during a limited exposure up to 1 min.

1.1.1 During this limited time exposure, the temperature can reach a threshold approaching 600 °F (316 °C).

1.2 Because there is significant potential for injury, the thermal-insulative properties of the materials used in the construction of protective clothing including, but not limited to, woven fabrics, knit fabrics, battings, sheet structures, and any composites, need to demonstrate they are capable of reaching a heat threshold that is sufficient to allow prediction of either a pain sensation or a second-degree burn injury to human tissue.

Standard:

ASTMF1060-2018: Standard test method for evaluation of conductive and compressive heat resistance (CCHR).

Technical parameters:

1. Hot plate: minimum of at least 200mm(8in), achieve a temperature of at least 371℃ (700ºF) ；

2. Surface plate: 6.4mm thick, 140 by 140mm wide, with a 2.4mm hole drilled from the edge to the center of the plate；

3. Cabilbration specimen: six new, not previously tested sheets of ordinary newspaper with total thickness of 0.53± 0.05mm(0.021± 0.002in.);

4. Specimen: cut and identify five test specimens , 100x 150± 2mm.