Norm

NEN-EN 15470:2015 Ontw. en

Vloeibaar petroleumgas - Bepaling van opgeloste resten - Gaschromatografische methode bij hoge temperatuur

23,50

Over deze norm

Status Ontwerp
Aantal pagina's 14
Commissie Vloeibare en gasvormige brandstoffen, smeermiddelen en verwante producten
Gepubliceerd op 01-11-2015
Taal Engels
This European Standard specifies a method for determining the dissolved residual matter in liquefied petroleum gases (LPG), in the range of 20 mg/kg to 100 mg/kg. Higher concentrations can be determined by adjusting the sample size. The dissolved residue is the amount of organic compounds that are detectable by gas chromatography after evaporation of the sample at ambient temperature and then in an oven at 105 °C. This method is not suitable for detecting solid materials or for possibly high molecular weight polymers (>1 000 g/mol). The advantages of this method are that a small quantity of LPG (50 g to 75 g) is required and the qualitative data available may indicate the origin of the residues (gas-oil, lubricants, plasticizers, etc.). The precision data of the method have been determined from 20 mg/kg to 100 mg/kg. For a higher content of residue, the precision has not been tested, but remains of lesser interest as typical specifications are in the range of 20 mg/kg to 100 mg/kg. NOTE An alternative European Standard, EN 15471 [1], specifies a gravimetric method, which has the same scope and slightly worse fidelity data. WARNING - The use of this Standard can involve hazardous materials, operations and equipment. This Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of users of this standard to take appropriate measures to ensure the safety and health of personnel prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.

Details

ICS-code 75.160.20
Nederlandse titel Vloeibaar petroleumgas - Bepaling van opgeloste resten - Gaschromatografische methode bij hoge temperatuur
Engelse titel Liquefied petroleum gases - Determination of dissolved residues - High temperature Gas chromatographic method
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