GB/T 12830-2008 in English

《GB/T 12830-2008硫化橡胶或热塑性橡胶 与刚性板剪切模量和粘合强度的测定 四板剪切法》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，TC35SC2（全国橡胶与橡胶制品标准化技术委员会通用试验方法分会）执行，主管部门为中国石油和化学工业联合会。
本标准代替ＧＢ／Ｔ１２８３０―１９９１《硫化橡胶与金属粘合剪切强度测定方法　四板法》。本标准规定了测定在四块平行刚性板之间粘合的橡胶剪切模量以及橡胶与金属或其他刚性板粘合强度的试验方法。本方法适用于在标准实验室的条件下制备的试样，试验结果也可为橡胶胶料和粘接剪切件的制作方法的研究和控制提供试验数据。标准与ＧＢ／Ｔ１２８３０―１９９１相比主要变化如下：
―――修改了标准的名称；
―――测定的对象从硫化橡胶扩展为硫化橡胶、热塑性橡胶；
―――增加了剪切模量的测定方法（本版的３．１、４．１、１０．１、１１．１、１２．１）；
―――采用文字说明代替原δｓｈ表示粘合强度，删去原�樱剑薄粒保埃�３ ｍ２ 的取值（１９９１年版的８．１；本版的１１．２．１）。

Scope

WARNING—Personnel using this standard should have practical experience in formal laboratory work. This standard does not point out all possible safety problems, the user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in the relevant national laws and regulations. Precautions——Some operations involved in this standard may use, generate some substances or produce wastes that may have a polluting impact on the local environment. Appropriate documents for the disposal of these substances after use should be established. This standard specifies the test method for the determination of the shear modulus of rubber bonded between four parallel rigid plates and the bond strength of rubber to metal or other rigid plates. Method A is suitable for the determination of the shear modulus of rubber. Method B is suitable for the determination of rubber bond strength. This method is applicable to samples prepared under standard laboratory conditions, and the test results can also provide test data for the research and control of the production methods of rubber compounds and bonded shear parts.