3 TEST PROCEDURE (continued)
www.elcometer.com
en-3
R
a
Pure water is available from Elcometer or your local Elcometer supplier, see Section 5 ‘Spares &
Accessories on page en-7.
b
On un-pitted blast-cleaned areas, a period of 10 minutes has been found to be satisfactory, though this
time should be agreed by the interested parties.
c
During steps 6 and 7, it is essential that no solution is lost. If any solution is lost, the test shall be rejected.
2
Apply the patch to the surface pressing
firmly around the perimeter of the patch to
ensure a complete seal and remove the
clear protective film cover using the
orange tab.
a
3
Pour approximately 3ml of pure water into
the beaker, by eye. Fit a needle into the
syringe and suck 3ml into the syringe.
Throw away the remaining water in the
beaker, do not put the pure water back into
the bottle.
4
Insert the syringe into the patch
through the spongy foam perimeter at
an angle of approximately 30° to the
test surface so that it passes through
the foam into the compartment formed
by the elastomer film and the test
surface. If the patch is positioned in a
difficult position bend the needle as
required.
5
Inject the pure water into the patch.
Do not remove the needle.
If necessary, any air can be evacuated
into the syringe and allowed to stay above
the water in the syringe. Take care not to
re-insert the air during steps 6 and 7.
b
6
During a suitable period of time ,
without removing the needle, suck and
re-inject the solution at least four
c
times .
7
At the end of the period, extract as
much solution as possible and remove
c
the syringe from the patch .
8
Transfer the contents of the syringe
into the beaker.
9
Test the solution for chloride, iron or
pH as required - see Sections 3.4, 3.5
and 3.6.
Summary of Contents for 138/2
Page 1: ...User Guide Elcometer 138 2 Surface Contamination Kit www elcometer com R...
Page 9: ...Guide d utilisation Elcometer 138 2 Kit de contamination de surface www elcometer com R...
Page 17: ...Gebrauchsanleitung Elcometer 138 2 Oberfl chenverunreinigungsset www elcometer com R...
Page 25: ...Gu a del usuario Elcometer 138 2 Kit de contaminaci n de superficies www elcometer com R...
Page 33: ...Gebruikershandleiding Elcometer 138 2 Oppervlakverontreinigingskit www elcometer com R...
Page 41: ...Elcometer 138 2 www elcometer com R...
