Winblast Srl

Via Roma, 181
I - 26020 SPINADESCO (CR)
Phone +39 0372 173 0267 - E Mail : info@winblast.it

© 2023 Winblast Srl - All rights reserved - VAT number 01730190194

Test kit for measuring salts

Why pay attention to conductivity characteristics?

The ions deposited on surfaces during the sandblasting process can increase corrosion. Monitoring salt contamination with various types of instruments and techniques allows for precise measurement of this value.

The Bresle method

Measurement methods and relevant instruments

The Bresle method uses an adhesive patch and a syringe to analyze the concentration of salts, expressed in mg/m², as required by ISO 8502-6 and ISO 8502-9 standards.

For more information:

This first method for measuring salts, known as the Bresle method, measures the concentration of salts in a solution and is expressed in mg/m² as required by ISO 8502-6 and ISO 8502-9 standards. For the test, a small volume of distilled water (about 3 ml) is injected with a syringe through a protective patch of about 35 mm attached to the metal surface to be checked. After a waiting time of about 10 minutes, the liquid, which should have absorbed the salts, is analyzed with the salt measuring device. In the pipe coating sector, ISO 21809 standard is applied, which requires a value of < 20 mg/>².

The Hedon conductivity meter (SSM)

The Hedon conductivity meter (SSM) compares the reference deionized solution with the analyzed surface to measure the presence of soluble salts expressed in millisiemens (mS/cm) or converted into mg/m².

This second device for measuring salts, called the Hedon conductivity meter (or SSM, meaning Soluble Salt Meter), measures the presence of salts on sandblasted surfaces through a reference deionized solution (distilled water or a specific concentration) by comparing it with the current situation of the chosen area.

The soluble salts will be expressed in millisiemens (mS/cm) or converted into mg/m² depending on the required unit of measurement. The main advantage of this SSM device is its practicality since it is magnetic and adheres to all flat surfaces, even vertical ones. The liquid is injected into the compartment through a duct connected to a small tank containing the solution.

An automatic impulse piston agitates the solution to mix it well and maximize the representativeness of the test. At the end of the cycle and when the piston stops moving, the measured values appear directly on the screen, which is sufficient to select the relevant and interesting values.

Winblast Srl