GB/T 13894-1992 in English

《GB/T 13894-1992石油和液体石油产品液位测量法（手工法）》由TC280（全国石油产品和润滑剂标准化技术委员会）归口，TC280SC2（全国石油产品和润滑剂标准化技术委员会石油静态和轻烃计量分会）执行，主管部门为国家标准化管理委员会。
本标准规定了用量油尺测量容器内石油和液体石油产品液面高度及容器底部游离水高度的方法。本标准适用于石油和液体石油产品。

1 Subject Content and Applicable Scope

This standard specifies the method of measuring the liquid level of petroleum and liquid petroleum products in tanks and the height of free water at the bottom of containers with a master dip-tape.
This standard is applicable to petroleum and liquid petroleum products.

2 Normative References

GB 13236 Dip-tapes and Steel Strapping Tapes for Petroleum—Specification

3 Terms

3.1 Gauging: process of measuring the liquid level of oil (hereinafter referred to as oil level) in the tank with a master dip-tape.
3.2 Dipping hole (dip hatch): opening at the top of the container for gauging, temperature measurement and sampling.
3.3 Reference point: fixed point or mark on the dipping hole, that is, the measurement starts from this point.
3.4 Gauging plate (datum plate): horizontal metal plate welded on the bottom (or wall) of the container, located directly below the reference point, as the contact surface of the dip weight.
3.5 Dipping reference point (datum point): contact point of dip weight at the bottom of container or on the gauging plate at the time of gauging.
3.6 Reference height: distance from the reference point to the dipping reference point.
3.7 Oil level: distance from the oil level to the dipping reference point.
3.8 Water dip: distance from the oil-water interface to the dipping reference point.
3.9 Ullage: distance from the reference point to the oil level in the tank.

1 Subject Content and Applicable Scope
2 Normative References
3 Terms
4 Measuring Instruments and Materials
5 Precautions
6 Gauging Methods
7 Report