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Term - Restrainer |
| Restrainer | SWPP and BPPA Photographic Glossary | Tuesday 21st May 2013 |
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RestrainerThe chemical constituent of developing solutions which helps prevent reducing agents from affecting unexposed halides and converting them to black metallic silver.
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Information provided by: SWPP BPPA SWPP & BPPA, 6 Bath St, Rhyl, LL18 3EB |