BS ISO 4266-1:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods Measurement of level in atmospheric tanks
Hardcopy , PDF
07-08-2023
English
09-12-2002
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1 Scope
2 Normative references
3 Terms and definitions
4 Precautions
4.1 Safety precautions
4.2 Equipment precautions
4.3 General precautions
5 Accuracy
5.1 Intrinsic error of ALGs
5.2 Calibration prior to installation
5.3 Error caused by installation and operating conditions
5.4 Overall accuracy
5.4.1 General
5.4.2 Use of ALGs for fiscal /custody transfer purposes
6 Installation of ALGs
6.1 General
6.2 Mounting location
6.3 Manufacturer's requirements
6.4 Installation
6.5 Still-well design
7 Initial setting and initial verification of ALGs in
the field
7.1 Introduction
7.2 General precautions
7.2.1 Initial requirements
7.2.2 Manual reference level measurement procedure
7.2.3 Reference measurement tape and weight
certification
7.2.4 Effect of weather
7.2.5 ALG technology-specific considerations
7.2.6 Application-specific considerations
7.3 Initial settings of ALGs
7.3.1 Setting against manual reference ullage
measurements
7.3.2 Setting against manual reference dip
(innage) measurements
7.4 Initial verification
7.4.1 Introduction
7.4.2 Verification conditions
7.4.3 Initial verification procedures
7.5 Record keeping
8 Subsequent verification of ALGs
8.1 General
8.2 Frequency of subsequent verification
8.3 Procedure for subsequent verification
8.4 Tolerance for subsequent verification
9 Data communication and receiving
Bibliography
Provides guidance on the accuracy, installation, commissioning, calibration and verification of automatic level gauges (ALGs), of both intrusive and non-intrusive types, for measuring the level of petroleum and petroleum products having a Reid vapour pressure less than 100 KPa, stored in atmospheric storage tanks.
| Committee |
PTI/12
|
| DevelopmentNote |
Together with BS ISO 4266-2, BS ISO 4266-3, BS ISO 4266-4, BS ISO 4266-5 and BS ISO 4266-6 supersedes BS 7812(1995) Supersedes 98/121443 DC. (12/2002)
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This part of ISO4266 gives guidance on the accuracy, installation, commissioning, calibration and verification of automatic level gauges (ALGs), of both intrusive and non-intrusive types, for measuring the level of petroleum and petroleum products having a Reid vapour pressure less than 100kPa, stored in atmospheric storage tanks.
This part of ISO4266 is not applicable to the measurement of level in refrigerated storage tanks with ALG equipment.
| Standards | Relationship |
| ISO 4266-1:2002 | Identical |
| ISO 4512:2000 | Petroleum and liquid petroleum products Equipment for measurement of liquid levels in storage tanks Manual methods |
| ISO 4268:2000 | Petroleum and liquid petroleum products Temperature measurements Manual methods |
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