acid-proof


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acid-fast

 [as´id-fast]
not readily decolorized by acids after staining; said of bacteria, especially Mycobacterium tuberculosis.
References in periodicals archive ?
Designed in acid-proof stainless steel, Landia's pump has a shredder propeller and extended knife system, which can handle guts, heads and even whole fish -- without the downtime of breakdowns or delays caused by clogging.
The range of caramel products being produced include spirit caramel, positive ('ammonia') caramel, negative (acid-proof) caramel and the C Gold range of caramelised syrups and burnt sugar, which are used widely in the brewing and confectionery industries.