Standard Test Method for Analysis of Polychlorinated Biphenyls in Insulating Liquids by Gas Chromatography
|Publication Date:||22 February 1991|
|ICS Code (Insulating oils):||29.040.10|
This test method describes a quantitative determination of the concentration of polychlorinated biphenyls (PCB) in electrical insulating liquids by gas chromatography. It applies to the determination of PCB species present in mixtures known as askarels, used themselves as electrical insulating liquids.
PCB mixtures known as Aroclors2 were used in the formulation of the PCB containing askarel manufactured in the United States. This test method can be applied to the determination of PCB in insulating liquids contaminated by either individual Aroclors or mixtures of Aroclors. The technique may not be applicable to the determination of PCB from other sources of contamination.
The precision and bias of this test method has been established only for PCB concentrations in electrical insulating mineral oils and silicones. The use of this test method has not been demonstrated for all insulating fluids. Some insulating liquids, such as halogenated hydrocarbons, will interfere with the detection of PCB's and cannot be tested without pretreatment.
This standard does not purport to address the safety problems 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 afregulatory limitations prior to use.
2 Registered trademark of Monsanto Co.