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Suitable Diluent selection for swab & rinse sampling

Cleaning procedure is done by water, 100% IPA and absolute ethanol. but confused to choose sampling diluent?

For swab sampling purified water (chemical)/ sterile water (micro)

For rinse which one will be best?

A sample of the rinse or swabbing solvent should always be based on the type of testing to be performed and should not create any reaction with or damage to the equipment.

First of all you should try with Purified water.