21/30419816 DC
BS ISO 7507-2. Petroleum and liquid petroleum products. Calibration of vertical cylindrical tanks Part 2. Optical-reference-line method or electro-optical distance-ranging method
| Označení normy: | 21/30419816 DC |
| Počet stran: | 37 |
| Vydáno: | 2021-03-16 |
| Status: | Draft for Comment |
21/30419816 DC
This standard 21/30419816 DC BS ISO 7507-2. Petroleum and liquid petroleum products. Calibration of vertical cylindrical tanks is classified in these ICS categories:
- 75.180.30 Volumetric equipment and measurements
This part of ISO 7507 specifies a method for the calibration of tanks above eight metres in diameter with cylindrical courses that are vertical. It provides a method for determining the volumetric quantity of the liquid contained within a tank at gauged liquid levels.
For optical-reference-line method, the optical (offset) measurements required to determine the circumferences can be taken internally or externally, provided that insulation is removed if tank is insulated.
The method specified in this part of ISO 7507 is suitable for tilted tanks with up to 3 % deviation from the vertical provided that a correction is applied for the measurement tilt, as described in ISO 7507-1.
This method is an alternative to other methods such as strapping (ISO 7507-1) and the optical-triangulation method (ISO 7507-3).