Third Commission Directive of 27 September 1983 on the approximation of the laws of the Member States relating to methods of analysis necessary for checking the composition of cosmetic products (83/514/EEC) (c. 514)

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ANNEXU.K.DETERMINATION OF DICHLOROMETHANE AND 1,1,1-TRICHLOROETHANE

DETERMINATION OF TOTAL FLUORINE IN DENTAL CREAMS U.K.

5.APPARATUSU.K.

5.1.Standard laboratory equipment.U.K.

5.2.Gas chromatograph fitted with a flame ionization detector.U.K.

5.3.Vortex swirl mixer or equivalent.U.K.

5.4.Bühler, shaker, type SMB₁ or equivalent.U.K.

5.5.Volumetric flasks, 100 and 250 ml, made of polypropylene.U.K.

5.6.Centrifuge tubes (glass); 20 ml with teflon lined screw-caps, Sovirel type 611-56 or equivalent. Clean tubes and screw-caps by leaching several hours in perchloric acid (4.11), followed by five subsequent rinsings with water (4.2), and finally dry at 100 ^oC.U.K.

5.7.Pipettes, adjustable to deliver volumes of 50 to 200 μl, with disposable plastics tips.U.K.

5.8.Distillation apparatus, fitted with a three-ball Schneider column or an equivalent Vigreux column.U.K.