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Standard Test Method for Dissolved Copper In Electrical Insulating Oil By Atomic Absorption Spectrophotometry
Automatische name übersetzung:
Standard Test Method for gelöstes Kupfer In Elektroisolieröl mittels Atomabsorptionsspektrometrie
NORM herausgegeben am 1.5.2013
Bezeichnung normen: ASTM D3635-13
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.5.2013
SKU: NS-24280
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
atomic absorption, copper, electrical insulating oil, spectroscopy, ICS Number Code 29.040.10 (Insulating oils)
Significance and Use | ||||||
4.1 Electrical insulating oil may contain small amounts of dissolved metals derived either directly from the base oil or from contact with metals during refining or service. When copper is present, it acts as a catalyst in promoting oxidation of the oil. This test method is useful for research for new oils and to assess the condition of service-aged oils. Consideration should be given to the limits of detection outlined in the scope. |
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1. Scope | ||||||
1.1 This test method covers the determination of copper in new or used electrical insulating oil of petroleum origin by atomic absorption spectrophotometry. 1.2 The lowest limit of detectability is primarily dependent upon the method of atomization, but also upon the energy source, the fuel and oxidant, and the degree of electrical expansion of the output signal. The lowest detectable concentration is usually considered to be equal to twice the maximum variation of the background. For flame atomization, the lower limit of detectability is generally in the order of 0.1 ppm or 0.1 mg/kg. For non-flame atomization, the lower limit of detectability is less than 0.01 ppm. 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.
Standard Specification for Reagent
Water Standard Specification for Less Flammable
High Molecular Weight Hydrocarbon Mineral Electrical Insulating
Liquids Standard Specification for Mineral
Insulating Oil Used in Electrical Apparatus (Includes all
amendments and changes 1/1/2018). |
Historisch
1.1.2012
Historisch
1.6.2011
Historisch
1.12.2009
Historisch
15.5.2009
Historisch
1.11.2006
Historisch
15.5.2010
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