BS 90-1975 直接作用的电记录仪表及其附件规范

标准号：BS 90-1975
中文标准名称：直接作用的电记录仪表及其附件规范
英文标准名称：Specification for direct-acting electrical recording instruments and their accessories
标准类型：N21
发布日期：1975/2/28 12:00:00
实施日期：1975/2/28 12:00:00
中国标准分类号：N21
国际标准分类号：17.220.20
适用范围：Defines and classifies accuracy classes, methods of determining intrinsic error and variations for measured quantity and time-keeping, lists influence quantities, electrical and mechanical requirements, marking requirements and symbols. Concept used and effect of friction between marking device and chart explained in appendices.