1.1本规范规定了三个等级的三氯三氟乙烷溶剂的要求: 1.1.1 I类电子或超净级， 1.1.2 II类标准或蒸汽脱脂等级，以及 1.1.3 IIA型通用，包装在压力容器级中。 1.2以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。

1.1 This specification establishes the requirements for three grades of trichlorotrifluoroethane solvent: 1.1.1 Type I electronic or ultra-clean grade, 1.1.2 Type II standard or vapor-degreasing grade, and 1.1.3 Type IIA general purpose, packaged in a pressurized container grade. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.