BS 7723-1:1994

Committees responsible
National foreword
Introduction
Method
1 Scope
2 Normative references
3 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
Annexes
A (normative) Expansion due to liquid head
B (normative) Expansion due to temperature
C (normative) Method for calibrating bottoms of tanks
D (normative) Specification for equipment used in
      strapping
E (normative) Certificate of calibration
F (normative) Tank calibration data and calculation
      sheet
Tables
A.1 Example of calculation routine for expansion during
      strappings
A.2 Example of calculation routine for expansion in
      service
Figures
1 Reading of tape sub-divided only for first metre
2 Correction of external strappings for vertical-seam
      overlaps
3 Calibration of bottoms of vertical cylindrical tanks

Specifies a method for the calibration of substantially vertical cylindrical tanks by measuring the tank using a strapping tape. Coverage includes precautions, equipment, circumference measurements, recalibration, measurement of tilt, deadwood, tank bottoms, and computation of open capacity. Also gives definitions, tables, diagrams and annexes.