MPMS Chapter 22.2 - DP Flow Meter Witnessing Program
Manufacturers of Differential Pressure (DP) Flow Meters have been testing these flow meters at test facilities according to API MPMS Chapter 22.2 – Testing Protocol for Differential Pressure Flow Meter Devices, and reporting meter performance results to the user. This program provides the manufacturer a venue for reporting the performance results.
API Manual of Petroleum Measurement Standards, Chapter 22.2, Testing Protocol for Differential Pressure Flow Meter Devices, defines the testing (MPMS) and reporting protocols for flow measurement devices. The objective of the Testing Protocol is so that the user of any differential pressure flow meter can assess performance characteristics of the meter. In conjunction with API MPMS Chapter 22.2, API offers a DP Flow Meter Witnessing Program. API will provide qualified witnesses who will witness the DP flow meter tests at an approved API Test Facility, and can post the performance results on the API web site for easy accessibility. By participating in the program, DP flow meter manufacturers will be able to provide meter performance results, which will allow the user to make objective decisions regarding meter performance.
The API DP Flow Meter Witnessing Program Application is a two-part document. The program requires that both an application and agreement be completed.
API MPMS DP Flow Meter Witnessing Application and Agreement
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MPMS Test Facility Registration Program
Laboratory test facilities have been testing and calibrating flow devices that are used in the oil and natural gas industry for measuring quantities of petroleum products. API has developed testing protocols for evaluating the performance of certain types of these devices. These testing protocols are used by these facilities in the testing of flow measurement devices.
API now has a registration program for these laboratory test facilities. Under the program, test facilities may become an API registered test facility if they meet certain program requirements. These requirements include being accredited to ISO 17025 and meeting the requirements of the applicable API MPMS Standard. If the test facility is not accredited to ISO 17025, then it must hold an ISO 9001 Quality Management System accreditation, meet the requirements of ISO 17025, Part 5 and the applicable API MPMS Standard.
Once becoming an API registered test facility for a certain MPMS standard, the facility is listed on the API composite list and is capable of performing witnessed tests under the current API MPMS Testing Protocols.
The API MPMS Test Facility Registration Program Application is a two-part document. The program requires that both an application and agreement be completed.
API MPMS Test Facility Application and Agreement