Term - Indicator chemical
|Indicator chemical||SWPP and BPPA Photographic Glossary|
Saturday 29th November 2014
A neutral chemical which can be added to a sample of a solution to indicate its pH level or the presence of hypo.
Information provided by: SWPP BPPA
SWPP & BPPA, 6 Bath St, Rhyl, LL18 3EB