標(biāo)準(zhǔn)號：ISO 22088-3-2006
中文標(biāo)準(zhǔn)名稱：塑料制品.耐環(huán)境應(yīng)力開裂(ESC)測定.第3部分:彎曲帶法
英文標(biāo)準(zhǔn)名稱：Plastics - Determination of resistance to environmental stress cracking (ESC) - Part 3: Bent strip method
標(biāo)準(zhǔn)類型：G31
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：G31
國際標(biāo)準(zhǔn)分類號：83.080.01
引用標(biāo)準(zhǔn)：ISO 178;ISO 179-1;ISO 527-2;ISO 2818;ISO 22088-1-2006
適用范圍：This part of ISO 22088 specifies a method for the determination of the environmental stress cracking (ESC) resistance of thermoplastics when they are subjected to a fixed flexural strain in the presence of chemical agents.ESC is indicated by the change of a suitably chosen indicative property of specimens that have been strained for a defined time in the environment. The method of test is suitable for determining the resistance of sheets and of flat test specimens, especially the sensitivity of localized surface regions of specimens, to ESC.The bent strip method is suitable for the determination of ESC caused by gases and liquids as well as solids containing migrating substances (e.g. polymeric adhesives and materials containing plasticizers) in contact with a specific polymer.Preferably, this method is used to determine the ESC resistance of rigid plastics that exhibit only moderate stress relaxation during the time of the test.This is essentially a ranking test and is not intended to provide data to be used for design or performance prediction.NOTE For a constant-strain test, refer to ISO 22088-5. For a constant-load test, refer to ISO 22088-2.