A DANREF certified reference plastic for measurement of overall migration into the food simulant olive oil by single sided testing

A reference material for the determination of overall migration from a plas tic coextrudate into the fatty food simulant olive oil was produced and cer tified in an interlaboratory study. The analyses were carried out according to the ENV 1186 standard from the European Committee for Standardization ( CEN) [1, 2, 3] with exposure of the coextrudate to olive oil for 10 days at 40 degrees C. After an initial preliminary interlaboratory study eight lab oratories participated in the certification round, and two different method s were used to obtain single sided exposure of the plastic to the oil. The certified value was determined as the mean of laboratory mean values. No ou tliers were found. A reference value of 8.6 mg/dm(2) +/- 1.4 mg/dm(2) (+/- half width of the 95% confidence interval) was obtained which is within the range relevant for the regulatory limit (10 mg/dm(2)), making this referen ce material suitable for laboratories measuring according to the EU overall migration limit [4]. The material has been found stable over 45 months.