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Hardness

Scratch Testers

Scratch TestersSpecifications allow for use of either the (preferred) mechanised or hand operated apparatus. A test panel is clamped to a slide which slowly withdraws the panel while a needle scratches the surface. Tests are conducted either on a ‘go/no go’ basis using a single specified load or by increasing the load to determine the minimum load at which the coating is penetrated.

Complies with BS 3900;E2, ISO 1518

Also available, loop stylus version BS 3900 : E17/ISO 12137-1

N.B. Other specifications available ASTM D5178,D2197

 

Download datasheetPDF Document (PDF, approx 456.77KB)

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705
Mechanised Scratch Tester
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705/1
Mechanised Scratch Tester - ASTM D5178
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705/2
Mechanised Scratch Tester - ASTM D2197
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706
Hand Operated version
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Hartest - Height of Precision