Norm

NEN-EN 17181:2017 Ontw. en

Smeermiddelen - Bepaling van de biologische degradatie onder aerobe condities in waterige oplossing van volledig geformuleerde smeermiddelen - Beproevingsmethode op basis van kooldioxide productie

  • Deze norm is ingetrokken sinds 01-02-2019

29,00 35,09 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 24
Commissie Vloeibare en gasvormige brandstoffen, smeermiddelen en verwante producten
Gepubliceerd op 01-11-2017
Taal Engels
This European Standard specifies a procedure for determining the degree of aerobic degradation of fully formulated lubricants. The organic material in a fully formulated lubricant is exposed in a synthetic aqueous medium under laboratory conditions to an inoculum from activated sludge. Biodegradation resulting in mineralisation of the organic material can be determined by measuring released CO2 in a total organic carbon (TOC-) analyser. In contrast to existing test methods measuring released CO2 this method uses a precise preparation procedure for non-water soluble organic material. The above mentioned method applies to fully formulated lubricants which a) are water-soluble, non-water soluble or emulsifiable, and b) are not toxic and not inhibitory to the test microorganisms at the test concentration. The presence of inhibitory effects is determined as specified in this European standard. This test method is focused on fresh water as test medium. Tests in sea water are currently not included in this method, but may be introduced later.

Details

ICS-code 75.100
Nederlandse titel Smeermiddelen - Bepaling van de biologische degradatie onder aerobe condities in waterige oplossing van volledig geformuleerde smeermiddelen - Beproevingsmethode op basis van kooldioxide productie
Engelse titel Lubricants - Determination of aerobic biological degradation of fully formulated lubricants in an aqueous solution - Test method based on CO2-production
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