Coverage. This specification covers minimum requirements for the design@ fabrication and plant testing of oilfield type oil and gas separators and/or and /or gas@ and usually located at some point on the producing flowline between the wellhead and pipeline Separators covered by this specification may be vertical@ spherical@ or single or double barrel horizontal. Policy. American Petroleum Institute (API) specifications are published as an and to procurement of standardized equipment and materials These specifications are not intended to inhibit purchasers and produces from purchasing or producing products made to specifications other than API@ and nothing in any API specification is intended to in any way inhibit the purchases of products from companies not authorized to use the API monogram* Nothing contained in any API specification is to be construed as granting any right@ by implication or otherwise@ for the manufacture@ sale@ or use in connection with any method@ apparatus or product covered by letters patent@ nor as insuring anyone against liability for infringement of letters patent. API specifications may be used by anyone desiring to do so@ and every effort has been made by the Institute to assure the accuracy and rehability of the data contaned in them However@ the Institute makes no representation@ warranty or guarantee in connection with the publication of any API specification and hereby expressly disclaims any hability or responsibility for violation of any federal@ state or municipal regulation with which an API specification may conflict@ or for the infringement of any patent resulting from the use of an API specification The use of the API monogram is a warranty by the manufacturer to the purchaser that the manufacturer has obtained a license to use the monogram and@ further@ that the product which bears the monogram conforms to the applicable API specification However@ the American Petroleum Institute does not represent@ warrant or guarantee that products bearing the API monogram do in fact conform to the applicable API standard or specification *The API monogram ?CAP-is a registered trade mark of the American Petroleum Institue