00754naa#a2200217#i#4500001001600000005001700016011001400033100004100047102000700088200018100095210006600276215001000342608002700352700002100379700002000400700001800420700001900438700004000457700002200497856001700519EN\\bibl\13252220260804125053.2##a3034-4689##a20260702b2026####ek#y0engy0150####ca##aRU1#aCALIBRATION OF MEASURING INSTRUMENTS FOR TRANSMITTANCE COEFFICIENTS AND OPTICAL DENSITY USING A SECONDARY STANDARD AND AUTOMATED PROCESSING OF MEASUREMENT DATAeJournal article1#aKazancKazan National Research Technological Universityd2026##a6 с.##aJournal article2local#1aZharavinagK. O.#1aLavrinovgS. V.#1aLyadovgM. A.#1aPetrovagE. V.#1aDresvyannikovgAleksandr Fedorovich#1aKoldybaevagN. N.4#avestniktu.ru