BS 3473-2-1987 制作实验室玻璃器皿用玻璃的耐化学腐蚀性.98℃下玻璃组织耐水解性测定方法

标准号：BS 3473-2-1987
中文标准名称：制作实验室玻璃器皿用玻璃的耐化学腐蚀性.98℃下玻璃组织耐水解性测定方法
英文标准名称：Chemical resistance of glass used in the production of laboratory glassware. Method for determination of hydrolytic resistance of glass grains at 98
标准类型：N64
发布日期：1987/1/30 12:00:00
实施日期：1987/1/30 12:00:00
中国标准分类号：N64
国际标准分类号：81.040.10
适用范围：This International Standard specifies a) a method for determining the hydrolytic resistance of glass grains at 98 ℃. The resistance is measured and expressed by the volume of acid required for titration of the alkali extracted from the unit mass of glass, and may also be expressed by the amount of sodium oxide equivalent to this volume of acid; b) a classification of glass according to the hydrolytic resistance determined by the method of this international Standard. This International Standard is intended for use on the less resis-tant types of glass. For the more resistant glasses, the method specified in ISO 720 is preferable. NOTE —It is emphasized that there is no exact correlation between the classification laid down in this International Standard and that laid down in ISO 720, and it is therefore essential to identify which classification is being used.