Norm

NEN-EN-ISO 3838:2004 en

Ruwe aardolie en vloeibare of vaste aardolieproducten - Bepaling van de dichtheid of relatieve dichtheid - Methode met pyknometer met stop met capillair, en met pyknometer met twee capillairen met maatverdeling

73,12

Over deze norm

Status Definitief
Aantal pagina's 18
Commissie Vloeibare en gasvormige brandstoffen, smeermiddelen en verwante producten
Gepubliceerd op 01-05-2004
Taal Engels
This International Standard specifies methods for the determination of the density or relative density of crude petroleum and of petroleum products handled as liquids. The capillary-stoppered pyknometer method is also for use with solids and this method may also be used for coal tar products, including road tars, creosote and tar pitches, or for mixtures of these with petroleum products. This method is not suitable for the determination of the density or relative density of highly volatile liquids having Reid vapour pressures greater than 50 kPa according to ISO 3007 or having an initial boiling point below 40 °C. The graduated bicapillary pyknometer method is recommended for the accurate determination of the density or relative density of all except the more viscous products, and is particularly useful when only small amounts of samples are available. The method is restricted to liquids having Reid vapour pressures of 130 kPa or less according to ISO 3007 and having kinematic viscosities less than 50 mm2/s [50 centistokes (cSt)] at the test temperature. Special precautions are specified for the determination of the density or relative density of highly volatile liquids.

Details

ICS-code 75.040
75.080
Nederlandse titel Ruwe aardolie en vloeibare of vaste aardolieproducten - Bepaling van de dichtheid of relatieve dichtheid - Methode met pyknometer met stop met capillair, en met pyknometer met twee capillairen met maatverdeling
Engelse titel Crude petroleum and liquid or solid petroleum products - Determination of density or relative density - Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods
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