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Standard Practice for Pre-Installation Acceptance Testing of Vibrating Wire Piezometers
Automaticky přeložený název:
Standardní praktiky pro Pre-instalace zkoušení při přejímání Vibrační Wire piezometrů
NORMA vydána dne 1.7.2012
Označení normy: ASTM D7764-12
Poznámka: NEPLATNÁ
Datum vydání normy: 1.7.2012
Kód zboží: NS-39082
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Zemní práce. Hloubicí práce. Budování základů. Podzemní práce
Keywords:
acceptance test, vibrating wire piezometers, ICS Number Code 93.020 (Earth works. Excavations. Foundation construction. Underground works)
Significance and Use | ||||
4.1 Vibrating wire piezometers are typically not recoverable after installation. Replacement, which involves drilling a new borehole, is expensive and sometimes impossible. Thus it is important to be certain that the sensor is operational before it is installed. 4.2 Lacking sophisticated testing facilities, field testers must use equipment that is at hand. But in so doing, field testers should not expect to achieve the same accuracy and precision that manufacturers state on the sensor calibration record. Instead, field testers should look for obvious non-conformances, as explained in the procedures. 4.3 This standard practice is not meant to restrict the use of other appropriate acceptance tests and procedures. 1.1 This practice describes two
acceptance tests for a vibrating wire piezometer: a zero test and a
down-hole test. The two tests can help a user verify that the
piezometer is operating properly before it is installed.
1.2 This practice offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word “standard” in the title of this document means only that the document has been approved through the ASTM consensus process. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||
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