Current Category: CN-JJF - National Metrology Technical Specifications JJF
This specification is applicable to the calibration of drilling fluid solid phase content measuring instruments with a drilling fluid cup capacity of 20 mL and 50 mL.
This specification is applicable to the calibration of non-coherent high-intensity pulsed light therapy devices with an output wavelength of 400 nm to 1,200 nm.
This specification applies to the calibration of non-removable tungsten-rhenium thermocouples with a temperature range of (0–2,300) °C. The calibration below 1,100 °C applies to tungsten-rhenium thermocouples with a protective tube length of not less than 300 mm, and the calibration between 1,100 and 2,300 °C applies to tungsten-rhenium thermocouples with a protective tube length of not less than 600 mm.
Other types of high-temperature thermocouples can refer to this specification for calibration.
This standard applies to the calibration of hypothermia therapy devices used by medical institutions to physically cool down patients with high fever and maintain their body temperature.
本规范适用于温度不超过200 ℃的微波消解仪温度参数的校准。
本规范适用于便携式制动性能测试仪的校准。
本规范适用于汽车行驶记录仪(以下简称记录仪)的校准。
本规范适用于卫星导航用星敏感器的校准，其他航天器所使用的星敏感器可参照执行。
本规范适用于行驶记录仪检测装置的校准。
本规范适用于频率范围为9 kHz~30 MHz的三环天线校准。
本规范适用于采用惰性气体（通常为氮气、氩气或氪气）物理吸附原理、分析测量固体材料比表面积和孔隙度的物理吸附仪的校准。
本规范适用于全球导航卫星系统(GNSS)信号模拟器（含北斗RDSS信号模拟器）的校准。