BS ISO 7507-1:2003

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Precautions
5 Equipment
6 General requirements
7 Circumference measurements
8 Other measurements on tank shell plates
9 Deadwood
10 Tank bottoms
11 Measurement of tilt
12 Floating-roof tanks
13 Recalibration
14 Computation of tank capacity tables - General rules
15 Form of tank capacity tables
16 Computation of open capacity
17 Construction of final tables
Annex A (normative) Specification for equipment used in strapping
Annex B (informative) Recommendations for monitoring,
        checking and verification of tank calibration
        and capacity table
Annex C (informative) Tank calibration data and calculation sheet
Annex D (informative) Tank calibration uncertainties
Annex E (informative) Tank shell temperature determination
Annex F (normative) Gauge tape temperature correction
Annex G (informative) Expansion due to liquid head
Annex H (normative) Expansion due to temperature
Annex I (normative) Certificate of calibration
Bibliography

Specifies method for the calibration of substantially vertical cylindrical tanks by measuring the tank using a strapping tape.

1.1 This part of ISO 7507 specifies a method for the calibration of substantially vertical cylindrical tanks by measuring the tank using a strapping tape.

1.2 This method is known as the “strapping method?? and is suitable for use as a working method, a reference method or a referee method.

NOTE For the reference method, the number of strappings required will be specified in the standard which refers to this part of ISO 7507.

1.3 The operation of strapping, the corrections to be made and the calculations leading to the compilation of the tank capacity table are described.

1.4 This method does not apply to abnormally deformed, e.g. dented or non-circular, tanks.

1.5 This method is suitable for tilted tanks with a deviation of up to 3 % from the vertical, provided that a correction for the measured tilt is applied in the calculations.