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API MPMS 2564 2001 pdf free download

API MPMS 2564 2001 pdf free download.Manual of Petroleum Measurement Standards Chapter 15—Guidelines for the Use of the International System of Units (SI) in the Petroleum and Allied Industries.
15.0 Introduction The general purpose of this publication is to encourage and facilitate uniformity of metric practice within the petroleum industry. The speciÞc purposes are as follows: 1. To deÞne metric practice for the petroleum industry; 2. To encourage uniformity of metric practice and nomenclature within the petroleum industry and 3. To facilitate the use of SI in all aspects of the petro- leum industry. Use of this publication by the American Petroleum Institute, its divisions, and its members imple- ments APIÕs policy and also implements recom- mendations in ISO 1000Ñ1992, SI Units and Recommen- dations for the Use of Their Multiples and of Certain Other Units [I] 1 . Production of the Þrst edition of APIÕs Publication 2564 in 1973 was encouraged by API member companies either oper- ating internationally or participating in the activities of the International Organization for Standardization (ISO). The Institute of Petroleum, Great Britain, (IP) and the Canadian Petroleum Association (CPA) both offered their full endorse- ment and accompanied it with valuable technical support and assistance. The transition to the International System of Units (SI) has advanced considerably since 1973. The Metric Conversion Act of 1975 (Public Law 94Ñ168) has been enacted, declaring the coordination and planning of increasing use of the metric system (SI) in the United States to be government policy. A notice by the Assistant Secretary of Commerce for Science and Technology in the Federal Register of October 26, 1977 (Volume 42, Number 206, pages 56513 and 56514) interprets and modiÞes SI for the United States. The act also provided for establishing a U.S. Metric Board to coordinate voluntary conversion. In 1982, the U.S. Metric Board was disbanded. Responsibility for metric coordination was transferred to the OfÞce of Metric Programs in the Department of Commerce.
The API Metric Transition Committee was formed in 1976 to coordinate internal API metric policy and to formulate APIÕs policy with regard to government and non government bodies. One of the Metric Transition CommitteeÕs Þrst actions was the creation of the Subcommittee on Units to review and revise Chapter 15, Sections I and 2, of the Manual of Petro- leum Measurement Standards . Sections I and 2 had been pub- lished as API Publications 2563 Metric Practice Guide , and 2564 Conversion of Operational and Process Measurement Units to the Metric (SI) System . At the recommendation of the Subcommittee on Units, the Metric Transition Committee discontinued API Publication 2563 and adopted ASTM (American Society for Testing and Materials) E 380Ð76 [3] and ANSI (American National Stan- dards Institute) Z210.1Ð1976 [2] as the authoritative metric practice guide. ASTM E 380 has been replaced by IEEE/ ASTM SI 10-1997, Standard for use of the International Sys- tem of units (SI): The Modern Metric System [14]. Because of special interpretations and applications of SI with the petro- leum industry, API will continue publishing API MPMS Chapter 15. In preparing Chapter 15, the working group has tried to keep consistent with metric practice as deÞned by the General Conference on Weights and Measures (abbreviated CGPM from the ofÞcial French name), the federal govern- ment, and signiÞcant standards organizations (such as the American Society for Testing and Materials, the American National Standards Institute, and related technical societies). However, even among these sources, agreement is not abso- lute on all details of metric practice. Where feasible, Chapter 15 has adhered to the policies of the voluntary standards asso- ciations ASTM and ANSI on all unresolved issues. Where no clear policy has been evident or where the policy was not acceptable to the petroleum industry, this publication has rec- ognized the particular needs of the petroleum industry.

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