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Transformer Oil Analysis - Polychlorinated Biphenyls

Name: Transformer Oil Analysis - Polychlorinated Biphenyls
SKU: TOA1-PCB
Price: 74.22 GBP
Availability: InStock

TOA1-PCB

£74.22

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Product Details

In the past, PCB’s were insulating liquids used for their non-flammable properties, mainly in transformers where a fire would be unacceptable, and as the dielectric fluid in capacitors. Unfortunately, the mineral oil used in transformers, switchgear etc. has become cross-contaminated over the years by PCB fluid being placed in dirty mineral oil tanks, by using oil conditioning equipment for both mineral and PCB liquids and by capacitors leaking into mineral oil systems.

PCB’s are fairly non-biodegradable and do tend to collect in food chains and as a result, legislation has been brought in to prevent widespread contamination. Liquids containing over 50mg/kg (or 50 ppm by weight) must be classed as injurious substances and disposal must be by high temperature incineration, which is expensive. In fact oil suppliers have agreed not to supply oil containing more than 10mg/kg and by the same token, any oil taken away over 10mg/kg is expensive to dispose of even though it may not be as high as 50/mg/kg. We use capillary column chromatography to determine the PCB

concentration in oil. Identifying the three main types of PCB i.e. 1242, 1254 and 1260 and reports the total PCB content present.

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