api std 521-2014泄壓和減壓系統(tǒng)

1、Pressure-relieving and Depressuring SystemsAPI STANDARD 521 SIXTH EDITION, JANUARY 2014Copyright American Petroleum Institute Provided by IHS under license with API Licensee=Texas A&M University/5912186001 Not f

2、or Resale, 02/14/2015 15:40:26 MST No reproduction or networking permitted without license from IHS--```,,,``,``,``,`,,,,,`,`,`,,,`-`-`,,`,,`,`,,`---ForewordNothing contained in any API publication is to be construed as

3、granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything contained in the publication be construed as in

4、suring anyone against liability for infringement of letters patent.Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification.Should: As used in a standard, “should” deno

5、tes a recommendation or that which is advised but not required in order to conform to the specification.This document was produced under API standardization procedures that ensure appropriate notification and participa

6、tion in the developmental process and is designated as an API standard. Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this pu

7、blication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any par

8、t of the material published herein should also be addressed to the director.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years

9、 may be added to this review cycle. Status of the publication can be ascertained from the API Standards Department, telephone (202) 682-8000. A catalog of API publications and materials is published annually by API, 12

10、20 L Street, NW, Washington, DC 20005.Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW, Washington, DC 20005, standards@api.org.iiiCopyright American Petroleum

11、Institute Provided by IHS under license with API Licensee=Texas A&M University/5912186001 Not for Resale, 02/14/2015 15:40:26 MST No reproduction or networking permitted without license from IHS--```,,,``,``,``,`,