超声波探伤试块校准规范
Calibration Specification for Blocks used in Ultrasonic Testing

2014-08-25

Aerospace series. Test methods for aluminium and aluminium alloy products-Reference blocks for the calibration of measuring equipment used in the determination of electrical conductivity of wrought aluminium and aluminium alloys
航空航天系列 铝及铝合金产品的试验方法 锻铝和铝合金电导率测定用测量设备校准用标准块

2017-09-04

Test methods for aluminium and aluminium alloy products - Part 7: Reference blocks for the calibration of measuring equipment used in the determination of electrical conductivity of wrought aluminium and aluminium alloy
铝和铝合金产品的试验方法.第7部分:锻铝和铝合金电导率测定用测量设备校准用标准块

1996-02-29

Aerospace series - Test methods for aluminium and aluminium alloy products - Part 7: Reference blocks for the calibration of measuring equipment used in the determination of electrical conductivity of wrought aluminium and aluminium alloys; German and English version EN 2004-7:2017
航空航天系列.铝和铝合金产品的试验方法.第7部分:用于测定锻铝和铝合金导电性的测量设备校准用参考试块；德语和英语版本EN 2004-7:2017

2017-10-01