Technical Information Quality   Our long-term commitment to quality is something that we strive to bring to our customers. Thanks to our Quality Management initiative, all of our locations have high quality controls firmly set in place. Our production at all locations is certified in accordance with ISO 9001/ 14001, the internationally recognized and highest quality standard; Hongmao Group even fulfils the even more stringent directives of the ISO TS 16949 standard. In addition, Industrial Safety Management was introduced at all the locations, in accordance with OSHAS 18001.         General Properties PROPERTY STANDARD UNIT ALUSWISSBOND THICKNESS   MM 4 GRAVITY ASTM F790-00 Kg/M2 5.5 WEIGHT ASTM F790-00 -- 1.38 THERMAL TRANSMITTANCE ASTM D696 Kcal/M.HR.0C 0.102 DEFLECTION TEMPERATURE ASTM D648-95 0C 115 LINEAR EXPANSION ASTM D696 10-6/0C 24 TENSILE STRENGTH ASTM D638 Kg/MM2 8.5 FLEXURAL STRENGTH ASTM D790 Kg/MM2 11.2 YIELD STRENGTH ASTM D696 Kg/MM2 5.1 BENDING STRENGTH ASTM D297 Kg/CM2 1344 BENDING MONENT ASTM D297 Kg/CM2 537 BENDING ELASTIC MODULUS ASTM D393 Kg/MM2 3746 PEELING STRENGTH ASTM D903 N/MM 7.2 PENCIL HARDNESS ASTM D3363 H 2H T-BEND FLEXBILITY ASTM D4145 T 1T IMPACT TEST ASTM D3281 -- NO DAMAGE ABRASION RESISTANCE ASTM D968 L/MIL 44 MORTAR RESISTANCE ASTM D1308 24HRS NO DAMAGE ACIDPOLLUTANTS ASTM D1308 37%HCL,15MINS NO DAMAGE ALKALI RESISTANCE ASTM D1308 25%NAOH,30MINS NO DAMAGE SALT SPRAY RESISTANCE ASTM B117 5%SALT,3000HRS NO DAMAGE HUMIDITY RESISTANCE ASTM D2247 100%RH,3000HRS NO DAMAGE DETERGENT RESISTANCE ASTM D2248   NO DAMAGE GLOSS RESISTANCE ASTM D523 % 98.9 CHALK RESISTANCE ASTM D4214 - . SOUND TRANSMISSION LOSS 500 HZ 28-36 DB 30