Wir benötigen Ihre Einwilligung zur Verwendung der einzelnen Daten, damit Sie unter anderem Informationen zu Ihren Interessen einsehen können. Klicken Sie auf "OK", um Ihre Zustimmung zu erteilen.
Standard Practice for Determining the Effect of Fluid Selection on Hydraulic System or Component Efficiency
Name übersetzen
NORM herausgegeben am 1.5.2017
Bezeichnung normen: ASTM D7721-17
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.5.2017
SKU: NS-686115
Zahl der Seiten: 7
Gewicht ca.: 21 g (0.05 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
design of experiment, efficiency, field testing, hydraulic fluid, shear stability,, ICS Number Code 75.120 (Hydraulic fluids)
Significance and Use | ||||||
5.1 The purpose of a hydraulic fluid is to cool and lubricate fluid power components, as well as transmit power. This practice provides uniform guidelines for comparing fluids in terms of their power-transmitting abilities as reflected in their effect on hydraulic system or component efficiency. Standard test methods ISO 4409 and ISO 4392 provide specifications for evaluating the steady state performance of hydraulic pumps and motors but do not address technical requirements specific to hydraulic fluid testing. 5.2 Differences in fluid performance may be relatively small. Consequently, it is essential that the necessary experimental controls are implemented to ensure consistency in operating conditions and duty cycle when comparing the energy efficiency of different hydraulic fluid formulations. 5.3 Practical advantages of enhanced hydraulic system efficiency may include increased productivity (faster machine cycle time), reduced power consumption (electricity or fuel), and reduced environmental impact (lowered emissions). 5.4 This practice implies no evaluation of hydraulic fluid quality other than its effect on hydraulic system efficiency. |
||||||
1. Scope | ||||||
1.1 This practice covers all hydraulic fluids. 1.2 This practice is applicable to both laboratory and field evaluations. 1.3 This practice provides guidelines for conducting hydraulic fluid evaluations. It does not prescribe a specific efficiency test methodology. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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. |
||||||
2. Referenced Documents | ||||||
|
Wollen Sie sich sicher sein, dass Sie nur die gültigen technischen Normen verwenden?
Wir bieten Ihnen eine Lösung, die Ihnen eine Monatsübersicht über die Aktualität der von Ihnen angewandten Normen sicher stellt.
Brauchen Sie mehr Informationen? Sehen Sie sich diese Seite an.
Letzte Aktualisierung: 2024-04-24 (Zahl der Positionen: 2 895 425)
© Copyright 2024 NORMSERVIS s.r.o.