As high-pressure
water blasting becomes more popular, everyday environmental regulations
surrounding disposal of waste water are tightening. Water blasting
is an ideal method for removing coatings back down to the bare substrate,
without losing the original profile.
Due to environmental
and other operational reasons, the water is filtered - to remove the
paint particles - and then re-used. However, chloride ions are soluble
in the blast water and it is important that these ions in the water
do not get too concentrated and begin to put chloride ions onto the
surface you are cleaning.
Need
2: Monitoring the Cleaning Process
When washing down
the surface, it is important to monitor the effectiveness of the cleaning
process. By simply recording the chloride level of the water before
the job commences and monitoring the level throughout the cleaning
process, the contractor can establish the effectiveness of the salt
removal and decide if a cleaning agent is required.
Easy
Operation
The Elcometer
134W uses a similar test method to the 134 Surface
and the 134 Abrasive test that is, using the
titration tube.
- Using the pipette
bottle, remove sufficient water under test and squeeze into the
bottle (about 2-3 pipettes full).
- Insert the
titration tube into the solution and read the result.
