FIELD: photography processing technology. SUBSTANCE: for higher contrast degree of photographic material obtaining chemical developer for roentgenographic material must have next components in units of g per l: sodium sulfate 20-40, hydroquinone 4,4-10, 1-phenyl-3-pyrazolidone 0,2-0,5, potassium bromide 2-8, triethanolamine 7-14, sodium carbonate 24-55, caustic potash 4-10, polyethylenhydroxide (mol mass 4400-4600) 1,5-4, phenilmercaptotetrazole 0,005-0,03, benzotriazole 0,2-0,5 and water up to 1 l. EFFECT: higher degree of contrast factor. 2 tb
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