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UNI EN 13723 : 2005

Current

Current

The latest, up-to-date edition.

PETROLEUM PRODUCTS - DETERMINATION OF LOW LEAD CONTENTS IN GASOLINES - WAVELENGTH-DISPERSIVE X-RAY FLUORESCENCE SPECTROMETRY (XRF)

Published date

01-03-2005

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Foreword
1 Scope
2 Normative references
3 Principle
4 Chemicals and solvents
   4.1 2,2,4-trimethylpentane (isooctane)
   4.2 Toluene
   4.3 Kerosene
   4.4 Lead-2-ethylhexanoate
   4.5 Triphenylbismuth or bismuth-2-ethylhexanoate
   4.6 Ethylhexanoic acid
   4.7 Blank solution
   4.8 Lead stock solution
   4.9 Bismuth internal standard solution
5 Apparatus
   5.1 Wavelength-dispersive X-ray flourescence
       spectrometer
   5.2 One-mark pipettes
   5.3 Volumetric flasks
   5.4 Conical flasks
   5.5 Fritted glass filter
   5.6 Analytical balance
6 Samples and sampling
7 Calibration solutions
   7.1 Preparation of lead calibration solutions
   7.2 Preparation of calibration solutions by addition
       of the internal standard
8 Calibration
   8.1 General
   8.2 Calibration graph
   8.3 Checking
9 Procedure
10 Calculation
11 Expression of results
12 Precision
   12.1 Repeatability
   12.2 Reproducibility
13 Test report

Describes a method for the determination of the lead content of gasoline with a lead concentration from 4 mg/l to 25 mg/l.

DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Current

Standards Relationship
EN 13723:2002 Identical
BS EN 13723:2002 Identical
NBN EN 13723 : 2002 Identical
NF EN 13723 : 2003 Identical
UNE-EN 13723:2003 Identical
NEN EN 13723 : 2002 Identical
SN EN 13723 : 2002 Identical
NS EN 13723 : 1ED 2002 Identical
I.S. EN 13723:2002 Identical
DIN EN 13723:2002-10 Identical

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