NF T72-070-3*NF EN 1014-3:2010 Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis - Part 3 : determination of the Benzo(a)pyrene content of creosote.
1997NF T72-072:1997 Wood preservative. Creosote and creosoted timber. Methods of sampling and analysis. Part 3 : determination of the benzo(a)pyrene content of creosote.