EN 14719:2005

Foreword
1 Scope
2 Principle
3 Reagents
   3.1 General
   3.2 Standards
       3.2.1 Diisopropylnaphthalene (DIPN) (technical
             mixture of isomers)
       3.2.2 Diethylnaphthalene (DEN), with a purity of
             97 % or more
   3.3 Chemicals, Acetone
   3.4 Calibration stock solutions
   3.5 Internal standard stock solution
4 Apparatus and auxiliary aids
   4.1 Gas chromatograph
   4.2 Gas chromatograph analytical capillary column
   4.3 Ultrasonic bath
   4.4 Microsyringes, 100 [mu]l, 250 [mu]l
   4.5 Graduated pipettes, 1 ml, 2 ml, 10 ml
   4.6 40 ml screw top vials, with PTFE
       (polytetrafluorethylene) lined septa
5 Sampling
6 Preparation of test pieces
7 Calibration
   7.1 Calibration standards
       7.1.1 General
       7.1.2 Calibration A
       7.1.3 Calibration B
   7.2 Blank value
   7.3 Control standard
8 Procedure
   8.1 GC-MS analysis
   8.2 Calibration
   8.3 Test piece analysis
       8.3.1 Test piece extracts
       8.3.2 Determination of DIPN
   8.4 Evaluation of data
       8.4.1 Interferences
       8.4.2 Determination of the DIPN concentration in
             the test pieces
       8.4.3 Calculation of the DIPN content in the paper
9 Precision
10 Test report
Bibliography

This European Standard describes a method for the determination of the content of diisopropylnaphthalene (DIPN) in paper, board and pulp by solvent extraction. The content of diisopropylnaphthalene (DIPN) is expressed as mg of total diisopropylnaphthalene DIPN isomers per kilogram of paper, board or pulp. This test method is appropriate for the quantitative determination of the content of diisopropylnaphthalene (DIPN) with a limit of determination of about 0,6 mg/kg.