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ASTM F2929-17(2021)
Standard Specification for Crosslinked Polyethylene (PEX) Tubing of 0.070 in. Wall and Fittings for Radiant Heating Systems up to 75 psig
Přeložit název
NORMA vydána dne 1.8.2021
Informace o normě:
Označení normy: ASTM F2929-17(2021)
Datum vydání normy: 1.8.2021
Kód zboží: NS-1031767
Počet stran: 10
Přibližná hmotnost: 30 g (0.07 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Trubky z plastické hmoty
Fitinky z plastické hmoty
Ústřední topení
Anotace textu normy ASTM F2929-17(2021) :
This specification establishes the requirements for 0.070 in. wall thickness crosslinked polyethylene (PEX) tubing that is outside diameter controlled, and intended for non-potable radiant heating applications for pressures up to 75 psig. It covers requirements and test methods for material, workmanship, dimensions, burst pressure, hydrostatic sustained pressure, bent-tube hydrostatic pressure, environmental stress cracking, stabilizer functionality, excessive temperature and degree of crosslinking, as well as requirements for tubing markings.
Keywords:
0.070 in. wall, crosslinked polyethylene, hydrostatic stress, PEX, pipe, PPI, radiant heating, tubing,, ICS Number Code 23.040.20 (Plastic pipes),23.040.45 (Plastic fittings),91.140.10 (Central heating systems)
Doplňující informace
| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1.1?This specification covers 0.070 in. wall thickness crosslinked polyethylene (PEX) tubing that is outside diameter controlled, and intended for non-potable radiant heating applications for pressures up to 75 psig in sizes 5/8?NTS (nominal tubing size) and 7/8?NTS. This specification also includes fittings that are specifically designed for this 0.070 in.-wall PEX tubing. Only maximum 75-psig relief valves shall be used with this tubing. Included in this specification are requirements and test methods for material, workmanship, dimensions, burst pressure, hydrostatic sustained pressure, environmental stress cracking, stabilizer functionality, bent-tube hydrostatic pressure, excessive temperature and degree of crosslinking. Requirements for tubing markings are also given. This specification incorporates an optional middle or outer oxygen barrier layer. This tubing is not intended for field bending at temperatures above 120 ?F (49 ?C). 1.2?The text of this specification references notes, footnotes, and appendixes, which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification. 1.3?The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4?The following safety hazards caveat pertains only to the test methods portion, Section 7, of this specification: 1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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