This European Standard gives guidance on a test method which permits the determination of seven specified PCBs in pulp, paper and board. Annex A gives a procedure for estimating the total content of PCB from the congener content.
BS EN ISO 15318:2000 history
2000BS EN ISO 15318:2000 Pulp, paper and board - Determination of 7 specified polychlorinated biphenyls (PCB)