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the following tests in a sample of boiler water,1 2019-6-13 · water there in no need to conduct a test for dissolve oxygen 6. PH VALVE A boiler water pH valve can be obtained by three basic methods: 1 litmus paper 2 colourimeterically 3 electrolytically LITMUS PAPER These are used to ascertain the degree of acidity of alkalinity of the boiler water. A litmus paper when inserted into a sample of boilerView More