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ISO 13880:1999
Petroleum and natural gas industries -- Content and drafting of a technical specification
This International Standard provides guidance for the content and drafting of a technical specification in order to ensure that all technical requirements of a product, process or service are included and can be verified as complying with specified performance requirements, such as may be specified in a functional specification (see ISO 13879).
A technical specification may not be necessary for a known standard product, process or service manufactured/supplied to a recognized standard.
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International Organization for Standardization [iso]