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ASTM D5747/D5747M-21
Standard Practice for Tests to Evaluate the Chemical Resistance of Geomembranes to Liquids
Přeložit název
NORMA vydána dne 1.3.2021
Informace o normě:
Označení normy: ASTM D5747/D5747M-21
Datum vydání normy: 1.3.2021
Kód zboží: NS-1021051
Počet stran: 7
Přibližná hmotnost: 21 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM D5747/D5747M-21 :
Keywords:
chemical resistance, geomembrane, liquid wastes,, ICS Number Code 59.080.70 (Geotextiles)
Doplňující informace
| Significance and Use | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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5.1?This practice is intended to provide a list of standard procedures for test programs investigating the chemical resistance of a geomembrane with a liquid waste, leachate, or chemical. This practice should be used in the absence of other specifications required for the particular situation being addressed. 5.2?Chemical resistance, as used in this practice, is not a quantifiable term. This practice is intended to provide a basis of standardization for those wishing to compare or investigate the chemical resistance of a geomembrane. It should be recognized that chemical resistance is a user judgment evaluation and that this practice does not offer procedures for interpreting the results obtained from test procedures contained in this practice. As a practice, this does not produce a test result. Note 1:?This practice is for the chemical resistance
assessment of geomembranes and is written in parallel to similar
standard practices for geotextiles, geonets, geogrids, geopipes,
and geosynthetic clay liners. Each standard is to be considered
individually for the geosynthetic under investigation and
collectively for all geosynthetics exposed to the potentially harsh
chemical environment under consideration.
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| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1.1?This practice covers procedures for the testing of geomembranes for chemical resistance with liquid wastes, prepared chemical solutions, and leachates derived from solid wastes. 1.2?This practice covers procedures for testing semi-crystalline, amorphous, elastomeric, and fabric-reinforced geomembranes. 1.3?This practice is intended to be used in conjunction with Practice D5322 or D5496, or both. The scope of this practice is limited to testing and reporting procedures for unexposed and exposed geomembrane samples. 1.4?Evaluation and interpretation of test data are beyond the scope of this practice. 1.5?The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.6?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. 1.7?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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