1. Introductory Text

2. Article 1. . . . . . . . . . ....

3. Article 2. . . . . . . . . . ....

4. Article 3. . . . . . . . . . ....

5. Signature

6. 1. ANNEX

      DETERMINATION OF THE VINYL CHLORIDE MONOMER LEVEL IN MATERIALS AND ARTICLES

      1. 1. SCOPE AND FIELD OF APPLICATION

      2. 2. PRINCIPLE

      3. 3. REAGENTS

         1. 3.1. . . . . . . . . . ....

         2. 3.2. . . . . . . . . . ....

         3. 3.3. . . . . . . . . . ....

      4. 4. APPARATUS

         1. 4.1. . . . . . . . . . ....

         2. 4.2. . . . . . . . . . ....

         3. 4.3. Gas-chromatographic column.

         4. 4.4. Sample phials or flasks fitted with silicon or butyl rubber...

         5. 4.5. . . . . . . . . . ....

         6. 4.6. . . . . . . . . . ....

         7. 4.7. . . . . . . . . . ....

      5. 5. PROCEDURE

         1. 5.1. Preparation of concentrated standard VC solution at approximately 2 000...

         2. 5.2. Preparation of dilute standard VC solution

         3. 5.3. Preparation of the calibration curve

         4. 5.4. Validation of preparation of standard solutions obtained in points 5.1...

         5. 5.5. Preparation of the samples of materials or articles

         6. 5.6. Gas-chromatographic determinations

            1. 5.6.1. . . . . . . . . . ....

            2. 5.6.2. . . . . . . . . . ....

            3. 5.6.3. . . . . . . . . . ....

            4. 5.6.4. . . . . . . . . . ....

      6. 6. CALCULATION OF THE RESULTS

         1. 6.1. Find by interpolation on the curve, the unknown concentration of...

         2. 6.2. . . . . . . . . . ....

      7. 7. CONFIRMATION OF THE VC LEVEL

      8. 8. REPEATABILITY