GB/T 21451.5-2019: Translated English of Chinese Standard. (GBT 21451.5-2019, GB/T21451.5-2019, GBT21451.5-2019): Petroleum and Liquid Petroleum Products - Measurement of Level and Temperature in Storage Tanks by Automatic Methods - Part 5: Measurement of Temperature in Marine Vessels
https://www.chinesestandard.net, 2 Kas 2019 - 19 sayfa
This Part of GB/T 21451 provides the selection, accuracy, installation, debugging, calibration and inspection guidance for automatic tank thermometer (ATT), which is adopted for the measurement of temperature of petroleum and liquid petroleum products in marine vessels. This Part is applicable to the custody transfer metering of petroleum and liquid petroleum products with the Reid vapor pressure of not more than 100 kPa.
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Selection of ATT
ATT Equipment Instruction of Electronic Temperature Sensing Element
Calibration and Onsite Inspection of Marine ATT
Appendix A informative Influencing Factors of Temperature Measurement Accuracy of Marine Vessels
accordance accuracy of temperature adjustment adopted affect aims applicable applied to custody approach automatic tank thermometer becomes cabin calibration and inspection Calibration before installation cargo cargo hold comply components conducted consistent corresponding national custody transfer metering definition deleted depends depth difference digital display device document electronic equipment equivalent temperature example factors GB/T height hold impossible instruction liquid level Liquid Petroleum Products liquid temperature long-distance digital display manual temperature measurement manufacturer’s marine vessels measurement by PET Measurement of Level Measurement of Temperature measures the temperature method modified multiple-point NOTE on-site operating conditions Overview Paragraph Petroleum and Liquid precise pressure probe range reading recently calibrated record reference standard requirements resistance temperature detector resistor safety satisfy selection sensor sentence single-point specific Storage Tanks suitable temperature element Temperature in Storage temperature point temperature sensing element temperature transmitter total accuracy uncertainty variation vertical