A pencil hardness test is a type of evaluation method that is performed to determine the hardness of a material, typically coating materials. To perform a pencil hardness test, graphite pencils of varying hardness are moved across a coating's surface. Its hardness relative to the graphite… View Full Term
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Roger Alexander is a cathodic protection expert with more than four decades of experience in the field.
He is the inventor of the Alexander Cell, a cathodic protection monitoring device, and founder of the Cathodic Protection Network, an internet facility for cathodic protection engineers.
Roger has also designed and constructed cathodic protection research & training centers in Brazil and South Africa.
Additionally, he has experience with pipeline safety, corrosion engineering and condition monitoring for the British Gas Corporation. Roger has developed unique diagnostic software for the control of cathodic protection of pipeline systems.
The Alexander Cell works on exactly the same principal as a long-term weight loss, corrosion coupon, but has the advantage of giving an immediate result.