DIN EN 14719 E : 2005
Current
The latest, up-to-date edition.
PULP, PAPER AND BOARD - DETERMINATION OF THE DIISOPROPYLNAPHTHALENE (DIPN) CONTENT BY SOLVENT EXTRACTION
Hardcopy , PDF
English
01-01-2005
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
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