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ühe grammi aine (rasva) seebistamiseks kuluv kaaliumhüdroksiidi kogus milligrammides
Koettstorfer number . Loomakasvatuse terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//lkt/Koettstorfer%20number/1/eng (07.08.2026)