Universal Powder Fixer A 300
July 17th, 2008 | Người đăng: chau
Phân loại:
A 300 is CALBE CHEMIE’s universally for films and papers used powder fixer for manual processing of various kinds of B & W photo papers and films. This light in weight powder fixer, based on Sodium Thiosulphate, has a great shelf life. Both the powder and the working solution are very durable. So, it makes A 300 suitable in cases, where fixer concentrates are unfavourable to use (worth climatic conditions with high temperatures and high humidity).
Commercial sizes
| Order-No. | 11084 | A 300 to make 20 x 5 L (500 grams each), one part powder |
| Order-No. | 11085 | A 300 to make 40 x 1 L (100 grams each), one part powder |
Mix instruction and Processing parameters
Mix powder with water at 30-50 °C, stirr and fill up to final volume. Final volume, if used for photo papers: 11085 - 1 Litre, 11084 – 5 L Final volume, if used for photo films : 11085 – 800 mls, 11084 – 4 L Fixing time: photo films - 6 to 8 minutes, photo papers - 3 to 6 minutes (at 25 °C) (see also hints of film and paper suppliers)
Capacity
| Photo films: | 15-20 films 135-36 (or 0,9 bis 1,2 m² sheet film) per Litre of working solution |
| Photo papers: | 2,4 m² per Litre of working solution |
(see also hints of film and paper suppliers)
Storage and Handling
Photochemicals have to be kept before mixing in the closed original package and stored dry (if possible).
It is recommended to wear protective gloves, when handling and working with powders and solutions. Note the governmental regulations and laws, when disposing used chemicals. For further information, please contact the manufacturer.