標準號：DIN ISO 812-2009
中文標準名稱：硫化橡膠或熱塑橡膠.低溫脆性的測定(ISO 812-2006).英文版本DIN ISO 812-2009-09
英文標準名稱：Rubber, vulcanized or thermoplastic - Determination of low-temperature brittleness (ISO 812:2006);English version of DIN ISO 812:2009-09
標準類型：G34
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：G34
國際標準分類號：83.060
引用標準：ISO 23529
適用范圍：This International Standard specifies a method for determining the lowest temperature at which rubbermaterials do not exhibit brittle failure or the temperature at which half of the test pieces used in a test fail whenimpacted under specified conditions.The temperatures thus determined do not necessarily relate to the lowest temperature at which the materialcan be used since the brittleness will be affected by the conditions of test and especially by the rate of impact.Data obtained by this method should, therefore, be used to predict the behaviour of rubbers at lowtemperatures only in applications in which the conditions of deformation are similar to those specified in thetest.Three procedures are described:-- procedure A, in which the brittleness temperature is determined;-- procedure B, in which the brittleness temperature for 50 % failure is determined;-- procedure C, in which the test piece is impacted at a specified temperature.Procedure C is used in the classification of rubber materials and for specification purposes.NOTE A similar test for rubber-coated fabrics is described in ISO 4646, Rubber- or plastics-coated fabrics --Low-temperature impact test.