BS EN ISO 8222:2020

What is ISO 8222 about?  

ISO 8222 describes the design, use, and calibration of volumetric measures (capacity measures) which are intended for use in fixed locations in a laboratory or the field. ISO 8222 gives guidance on both standard and non-standard measures. It also covers portable and mobile measures. 

ISO 8222 applies to the petroleum industry; however, it may be applied more widely to other applications. 

ISO 8222 excludes measures for cryogenic liquids and pressurized measures as used for liquid petroleum gas (LPG) and liquefied natural gas (LNG). 

Volumetric measures are classified as test measures or prover tanks depending on capacity and design. Measures described in ISO 8222 are primarily designed, calibrated, and used to measure volumes from a measure that is wetted and drained for a specified time before use and designated to deliver. 

Many of the provisions, however, apply equally to measures that are used to measure a volume using a clean and dry measure and designated to contain. 

Guidance is given regarding commonly expected uncertainties and calibration specifications. 

ISO 8222 also provides, in Annex A, reference formulae describing the properties of water and other fluids and materials used in volumetric measurement more generally. 

Who is ISO 8222 for?  

ISO 8222 on petroleum measurement systems is beneficial for  

• Petroleum industry 
• Milk factories or similar factories where volumetric measures are required 

Why should you use ISO 8222?  

Volumetric, or capacity, measures are used to provide an accurate measure of volume, thereby providing a calibration reference for other volume-measuring devices, such as pipe displacement provers or flowmeters. 

ISO 8222 provides information on general design characteristics of volumetric measures, test measures, proving tanks, calibration, and calculations required for volumetric, or capacity, measures. 

With ISO 8222 the user can accurately determine the capacity of a tank. ISO 8222  assures that measurements are as accurate and as precise as possible. ISO 8222 provides the method by which the exact volume of your tank is calculated in line with specified measurement standards. ISO 8222 helps the user to obtain accurate measurements of quantity and keep good contractual relationships with clients this builds consumer trust and confidence. 

What’s changed since the last update?  

BS EN ISO 8222:2020 supersedes BS EN ISO 8222:2002, which is withdrawn. 

The main changes to the previous edition are as follows: 

• Revision of the title and scope to allow the document to cover the design, calibration, and use of a wide range of volumetric measures comprising proving tanks, test measures, field, and standard measures 
• Provision of revised, updated, and extended formulae to allow calculation of temperature correction including the addition of formulae for saline water, other liquids, and material properties