NBN EN 15470 : 2008

Foreword
1 Scope
2 Normative reference
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Test procedure
   7.1 Safety
   7.2 Summary of the method
   7.3 Sampling procedure
   7.4 Evaporation procedure
   7.5 Gas Chromatography analysis of the
        evaporation residue
8 Calculations
9 Expression of results
10 Precision
   10.1 General
   10.2 Repeatability, r
   10.3 Reproducibility, R
Annex A (normative) - Equipment for the sampling line
                      and evaporation device
      A.1 Sampling set
      A.2 Venting lines
Annex B (informative) - Commercial equipment suitable
                        for the method
      B.1 General
      B.2 Tube, stainless steel (type 304), ref 30203
      B.3 Needle valve type SS-SS 2
      B.4 Gas chromatograph Hewlett Packard 5890
      B.5 Flasks A1036337
      B.6 The GC column is a weakly polar capillary
          column, high temperature, type HT5, supplied by SGE
Annex C (informative) - Examples of gas chromatograms
Bibliography

Describes a method for determining the dissolved residual matter in liquefied petroleum gases (LPG), in the range of 40 mg/kg to 100 mg/kg. Higher concentrations can be determined by adjusting the sample size.