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ISO 787-23:1979

General methods of test for pigments and extenders — Part 23: Determination of density (using a centrifuge to remove entrained air)
1. 12. 1979.

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90.93     6. 3. 2023.

ISO

ISO/TC 256

Međunarodni standard

87.060.10  

francuski   engleski  

Kupovina

Objavljen

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Apstrakt

Displacement liquids of known density should be selected in which the material to be tested is insoluble, and which has good wetting properties and a low evaporation rate under vacuum. High-boiling aromatic or aliphatic hydrocarbons are suitable. The temperature, t, at which the determination is carried out affects the density of the displacement liquid; each weighing should be made at a constant temperature. The principle consists in weighing into a tared tube a quantity of a dried sample, wetting it with displacement liquid, centrifuging until the occluded air is removed and calculation of the density from the difference of masses.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 787-23:1979
90.93 Odluka o potvrđivanju standarda
6. 3. 2023.

Nacionalna preuzimanja

SRPS EN ISO 787-23:2010  
ISS

Opšte metode za ispitivanje pigmenata i punilaca - Deo 23: Određivanje gustine (uz upotrebu centrifuge za uklanjanje zarobljenog vazduha)

90.93   Odluka o potvrđivanju standarda

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