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ASTM F610/F610M-21
Standard Practice for Evaluating the Quality of Molded Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings by the Heat Reversion Technique
Přeložit název
NORMA vydána dne 1.4.2021
Informace o normě:
Označení normy: ASTM F610/F610M-21
Datum vydání normy: 1.4.2021
Kód zboží: NS-1023017
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM F610/F610M-21 :
Keywords:
evaluating, fittings, plastic, PVC, quality,, ICS Number Code 23.040.20 (Plastic pipes),23.040.45 (Plastic fittings)
Doplňující informace
| Significance and Use |
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3.1?This practice is applicable to distinguish between properly and improperly molded PVC plastic pipe fittings. It can be used to: 3.1.1?Determine whether cold slugs or unfused areas are present (Note 2), 3.1.2?Determine the amount of molded-in stress produced by the molding process (Note 3), 3.1.3?Reveal contamination, and 3.1.4?Show the quality of the weld line. Note 2:?A cold slug is a piece of material that enters the
mold at a significantly lower temperature than the rest of the
mass.
Note 3:?A stress-free part will generally have better
properties and higher strength than those with a high degree of
stress. Stress-free parts will generally react better when exposed
to chemicals.
|
| 1. Scope |
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1.1?This practice covers a procedure for evaluating the quality of molded poly(vinyl chloride) (PVC) plastic pipe fittings after exposure to heat. 1.2?UnitsThe values stated in either inch-pound or SI units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Note 1:?The values in square brackets are SI units
requirements.
1.3?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4?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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