R Series Transformer Breathers use low-dusting, beaded, self-indicating silica gel, either orange (non-toxic) or blue (with cobalt chloride). Both change colour as they saturate.
What type of desiccant is used in transformer breathers?

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Testing for Yollie
R Series Transformer Breathers use low-dusting, beaded, self-indicating silica gel, either orange (non-toxic) or blue (with cobalt chloride). Both change colour as they saturate.

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