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Homepage>BS Standards>75 PETROLEUM AND RELATED TECHNOLOGIES>75.040 Crude petroleum>BS 2000-356:1999 Methods of test for petroleum and its products Crude petroleum. Determination of water. Potentiometric Karl Fischer titration method
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BS 2000-356:1999 Methods of test for petroleum and its products Crude petroleum. Determination of water. Potentiometric Karl Fischer titration method

BS 2000-356:1999

Methods of test for petroleum and its products Crude petroleum. Determination of water. Potentiometric Karl Fischer titration method

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Standard number:BS 2000-356:1999
Pages:12
Released:2000-02-15
ISBN:0 580 35499 7
Status:Standard
DESCRIPTION

BS 2000-356:1999


This standard BS 2000-356:1999 Methods of test for petroleum and its products is classified in these ICS categories:
  • 75.040 Crude petroleum

This International Standard specifies a potentiometric Karl Fischer titration method for the direct determination of water in crude petroleum. It covers the range 0,05 % (m/m) to 2,00 % (m/m) water in crude petroleum containing less than 0,05 % (m/m) but more than 0,005 % (m/m) of either mercaptan sulfur or sulfide ion sulfur or both. It covers the range 0,02 % (m/m) to 2,00 % (m/m) water in crude petroleum containing less than 0,005 % (m/m) of either mercaptan sulfur or sulfide ion sulfur or both.

NOTE 1 A number of substances and classes of compounds associated with condensation or oxidation-reduction reactions interfere in the determination of water by Karl Fischer titration. However, the only likely interfering substances present in crude petroleum are mercaptans and ionic sulfides. At levels less than 0,05 % (m/m) as sulfur the interference is insignificant when determining water in the range 0,05 % (m/m) to 2,00 % (m/m).

NOTE 2 For the purposes of this International Standard, the terms *% (m/m)" and "% (V/V)" are used to represent the mass and volume fractions respectively.


Identical with IP 356/99.