1、DEUTSCHE NORM December 2004DIN EN 14345 No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen).English price group 10www.din.
2、de www.beuth.de04.05 9614455Document comprises 12 pages.Characterization of wasteDetermination of hydrocarbon content by gravimetryEnglish version of DIN EN 14345Charakterisierung von Abfllen Bestimmung des Kohlenwasserstoffgehalts mittels GravimetrieA comma is used as the decimal marker.National fo
3、rewordThis standard has been prepared by CEN/TC 292 Characterization of waste (Secretariat: The Nether-lands).The responsible German body involved in its preparation was the Normenausschuss Wasserwesen (Water Practice Standards Committee), Technical Committee Chemische Verfahren.ICS 13.030.01English
4、 versionICS 13.030.01Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr Normung 2004. CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national members.Ref. No. EN 1434
5、5 : 2004 ECharactrisation des dchets D-termination de la teneur en hydrocar-bures par gravimtrieCharakterisierung von Abfllen Be-stimmung des Kohlenwasserstoffge-halts mittels GravimetrieThis European Standard was approved by CEN on 2004-07-09.CEN members are bound to comply with the CEN/CENELEC Int
6、ernal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national stand-ards may be obtained on application to the Management Centre or to any CEN member
7、.The European Standards exist in three ofcial versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notied to the Management Centre has the same status as the ofcial versions.CEN members are the nati
8、onal standards bodies of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United
9、 Kingdom. EN 14345September 2004Characterization of wasteDetermination of hydrocarbon content by gravimetryPage 2 EN 14345 : 20042333333444555555666667789101111Page 3 EN 14345 : 2004Page 4 EN 14345 : 2004Page 5 EN 14345 : 2004Page 6 EN 14345 : 2004Page 7 EN 14345 : 2004Page 8 EN 14345 : 2004Page 9 E
10、N 14345 : 2004Page 10 EN 14345 : 2004Test portion (20 g)Add acetone (40 ml) and petroleum ether (20 ml)Extract for 10 to 15 minutes by shakingTransfer supernatant into a separating funnelRepeat extraction of the residue with fresh solventCombine the organic layers in the separating funnelWash twice with waterDry the organic layer with sodium sulphateClean the extract an a Florisil columnConcentrate the eluate to a small volumeHeat to dryness at 80 C for 15 minutesWeigh the residuePage 11 EN 14345 : 2004
