spark testing

Spark testing is used because it is quick, easy, and inexpensive.

For the spark testing method, water is not sprayed onto the exposed geomembrane.

Spark testing is a method of determining the general classification of ferrous materials.

Automated spark testing has been developed to remove the reliance upon operator skill and experience, thereby increasing reliability.

Tschorn produced an exhaustive treatment of spark testing.

The main disadvantage to spark testing is its inability to identify a material positively; if positive identification is required, chemical analysis must be used.

For geomembranes with a conductive backing, spark testing can be performed (ASTM D7240).

In 1909, Max Bermann, an engineer in Budapest, was the first to discover that spark testing can be used reliably to classify ferrous material.

The quantity and style of sparks produced depends on the composition and pyrophoricity of the metal and can be used to identify the type of metal by spark testing.