Porosity Testing

Test method Porosity Testing with High Voltage standards: AS 3894.1, ASTM D4787, ASTM D5162, ASTM G62, EN 14430, NACE SP0188, NACE SP0490, NACE SP0274

The test method is based on the fact that all electrically insulating coating materials have a much higher dielectric strength than air.

Scheme of Porosity testing.
Scheme of Porosity testing.

For testing, one sets the corresponding test voltage for the coating thickness on the POROSCOPE®. Alternatively, one can also enter a testing standard and coating thickness. The POROSCOPE® will then automatically set the corresponding test voltage. One connects the specimen with the earth cable and moves the electrode slowly over the surface to be tested. If the electrode passes a crack, a short voltage drop will occur – a sparkover. An optical and acoustic signal indicates the pore, and the pore count is increased by one step.

Your contact to FISCHER


Partner of Industrial Segments
Sigma Enterprises WLL
PO Box 15784, Alfardan Center, Grand Hamad Street, Doha
Phone: +974 44622614
E-Mail: Manuel.Ramalho@sep.qa
Online contact form

Partner of Jewelry Segment
Qatar Scientific Co WLL
PO Box 41243, Office # 511, 5th Floor Al Retaj Business Center, Rawdat Al-Khail Area B-Ring Road, Doha
Phone: +974 4462 1165
E-Mail: afifi@qsneoscience.com
Online contact form