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BSI 22/30461348 DC:2022 Edition

BSI 22/30461348 DC:2022 Edition

$13.70

BS ISO 4266-4. Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods – Part 4. Measurement of temperature in atmospheric tanks

Published By Publication Date Number of Pages
BSI 2022 22
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PDF Catalog

PDF Pages PDF Title
1 30461348-NC.pdf
3 ISO_DIS 4266-4 ed.2 – id.85473 Enquiry PDF (en).pdf
7 Foreword
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Precautions
4.1 Safety precautions
4.2 Equipment precautions
11 4.3 General precautions
5 Accuracy
5.1 General
5.2 Intrinsic error of ATTs
12 5.3 Calibration prior to installation
5.3.1 General
5.3.2 ATT calibrated as a system
5.3.3 ATT calibrated by components
5.3.4 Multiple-point ATTs
5.3.5 Variable-length ATTs
5.3.6 Uncertainty of the reference
5.4 Error caused by installation and operating conditions
13 5.5 Overall accuracy
5.5.1 General
5.5.2 Use of ATT for fiscal/custody transfer purposes
6 Selection of ATTs
6.1 General
14 6.2 ATTs for fiscal/custody transfer purposes
7 Description of ATT equipment
7.1 Introduction
7.2 Electrical temperature elements
7.2.1 Resistance temperature detectors
15 7.2.2 Other temperature elements
8 Installation of ATTs
8.1 General
8.2 Single-point (spot) temperature elements
8.3 Averaging temperature elements
8.3.1 General
8.3.2 Upper, middle and lower temperature elements
16 8.3.3 Multiple-point temperature elements
8.3.4 Variable-length RTD temperature elements
8.3.5 Mid-level temperature element
8.3.6 Moveable spot temperature element
17 8.3.7 Other methods
8.4 Thermowells for electronic temperature elements
19 9 Calibration and field verification of ATTs
9.1 Introduction
9.2 Calibration of single-point, or mid-level temperature element ATTs for fiscal/custody transfer purposes
9.2.1 Calibration prior to installation
9.2.2 Initial field verification
20 9.3 Calibration of upper, middle and lower or multiple-point ATTs for fiscal/custody transfer purposes
9.3.1 Calibration prior to installation
9.3.2 Initial field verification
21 9.4 Calibration of variable-length ATTs for fiscal/custody transfer purposes
9.4.1 Calibration prior to installation
9.4.2 Initial field verification
9.5 Subsequent verification of ATTs
9.5.1 General
9.5.2 Frequency of subsequent verification
22 9.5.3 Record keeping
10 Data communication and receiving

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