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ASTM D2774-2012 standard practice for underground installation of thermoplastic pressure piping

Standard Number:  ASTM D2774-2012
Title:  standard practice for underground installation of thermoplastic pressure piping
Language:  English
Replacing Standard:  ASTM D2774-08

Publication Date:  2012/2/1
Execute Date:  2012/2/1
Status:  Current
Publisher:  American Society for Testing Material (ASTM)
Price:  
Number of Pages:  

Description:1.1 this practice governs procedures and references astmspecifications for underground installation of thermoplasticpressure piping, 63-in. (1372-mm) nominal size and smaller. itis beyond the scope of this practice to describe these proceduresin detail since it is recognized that significant differencesexist in their implementation depending on kind and type ofpipe material, pipe size and wall thickness, soil conditions, andthe specific end use.1.1.1 this practice assumes that over the range of anticipatedoperating conditions, including maximum external loadingand minimum internal pressure, the soil/pipe system willoffer sufficient structural stability to resist possible excessivediametrical deformation, or even collapse. in cases, particularlywith large diameter thinner-walled pipe, for which thevalidity of this assumption may be in question, the selection ofpipe and recommended installation conditions shall be determinedby a qualified engineer.1.1.2 specific pipe characteristics and end-use requirementsshall dictate addition to, or modification of the proceduresstated or referenced herein.1.2 the values stated in inch-pound units are to be regardedas standard. the values given in parentheses are mathematicalconversions to si units that are provided for information onlyand are not considered standard.1.3 this standard does not purport to address all of thesafety concerns, if any, associated with its use. it is theresponsibility of the user of this standard to establish appropriatesafety and health practices and determine the applicabilityof regulatory limitations prior to use. specific precautionarystatements are given in sections 10 and 11.  
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  290KB
Tile in English:  standard practice for underground installation of thermoplastic pressure piping

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