SIST ISO 456:1995

Oznaka standarda: SIST ISO 456:1995
Koda projekta: 004478
Organizacija: SIST
Naslov (angleški): Surface active agents -- Analysis of soaps -- Determination of free caustic alkali
Naslov (slovenski): Površinsko aktivne snovi - Analize mil - Določevanje prostih jedkih alkalij
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SIST ISO 456:1995 angleški jezik Active SIST-B: 38.72 EUR
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Tehnični odbor: KDS - Kozmetična, dezinfekcijska sredstva in površinsko aktivne snovi
ICS: 71.100.40
Status: Objavljen
Objavljen: 01-avg-1995
Refer. št. objave: Sporocila 1995-08-01
Referenčna oznaka: ISO 456:1973
Področje projekta (angleško): The determination may be carried out in two different ways by the ethanol method or the barium chloride method. In the first case the soap is dissolved in neutralized ethanol, and the free caustic alkali is titrated with an ewthanol solution of hydrochloric acid. The second way includes precipitating of soap and carbonate with barium chloride and determining of the residual alkalinity of the solution, representing the alkalinity of the free potassium hydroxide.

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