ISO 6250:1982
(Main)Aviation fuels — Determination of water reaction
Aviation fuels — Determination of water reaction
Carburants aviation — Détermination de la réaction à l'eau
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Standards Content (Sample)
International Standard 6250
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION*ME~YHAPOAHAR OPrAHM3AUMR Il0 CTAHAAWM3AUMM@RGANiSATION INTERNATIONALE O€ NORMALISATION
Aviation fuels - Determination of water reaction
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Carburants aviation - Détermination de la réaction à I'eau
First edition - 1982-03-01
ir; UDC 665.733.3 : 620.168 Ref. NO. IS0 6250-1982 (E)
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Descriptors : petroleum products, aviation fuels, chemical analysis, determination of content, water.
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Price based on 2 pages
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Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards institutes (IS0 member bodies). The work of developing Inter-
national Standards is carried out through IS0 technical committees. Every member
body interested in a subject for which a technical committee has been set up has the
be represented on that committee. International organizations, governmental
right to
and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council.
International Standard IS0 6250 was developed by Technical Committee ISO/TC 28,
Petroleum products and lubricants, and was circulated to the member bodies in
October 1980.
It has been approved by the member bodies of the following countries :
Australia Hungary Poland
Austria India Portugal
Belgium Iran Romania
Brazil Ireland South Africa, Rep. of
Spain
Bulgaria Israel
Canada Italy Sweden
Chile Japan Switzerland
China Korea, Dem. P. Rep. of Turkey
Czechoslovakia Mexico United Kingdom
Egypt, Arab Rep. Of Netherlands USA
France Norway
USSR
Germany, F. R. Peru
No member body expressed disapproval of the document.
0 International Organization for Standardization, 1982 O
Printed in Switzerland
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INTERNATIONAL STANDARD IS0 6250-1982 (E)
Aviation fuels - Determination of water reaction
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4 Apparatus
Scope and field of application
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Ordinary laboratory apparatus and -
This International Çtandard specifies a method for the
determination of the presence of water-miscible components in
aviation gasoline and turbine fuels, and the effect of these
4.1 Graduated glass cylinder, glass-stoppered, of capacity
on the fuel-water interface.
components
100 ml, with 1 ml graduations. The distance between the
100 ml mark and the top of the shoulder of the cylinder shall be
within the range of 50 to 60 mm.
2 Principle
A test portion of the fuel is shaken, using a standardized tech-
5 Preparation of apparatus
nique, at room temperature with a phosphate buffer solution.
The change in volume of the aqueous layer, the appearance of
Clean the graduated cylinder (4.1) thoroughly before carrying
the interface, and the degree of separation of the two phases
out this test. Cleaning procedures found to be suitable are as
are reported as the water reaction of the fuel.
follows :
5.1 Remove traces of oil from the graduated cylinder and
3 Reagents
stopper by flushing with hot tap water, brushing if necessary.
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Alternatively, remove all traces of oil from the graduated
Use only reagents of recognized analytical reagent grade, and
cylinder and stopper using n-heptane (3.2). Rinse with the
only distilled water or water of equivalent purity.
acetone (3. I), followed by tap water.
3.1 Acetone.
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