SRC-340/341 Surface roughness comparator
Surface Roughness Comparator
A precision Nickel Comparator Plate that conforms to International Standard ISO 8503 and ASTM D4417 for grit and shot blasted surface roughness comparison.
The SRC-340 (Grit) and SRC-341 (Shot) Surface Roughness Comparators can be used to assess the roughness of the surface of a substrate which has been blasted with shot or grit.
Kelvinstraat 8
1704 RS Heerhugowaard
The Netherlands
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- More than 50 years of experience
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Product description
The grades are defined as follows:
| Fine | Profile equal to segment one and up to but excluding segment two. |
| Medium | Profile equal to segment two and up to but excluding segment three. |
| Course | Profile equal to segment three and up to but excluding segment four. |
The relevant Comparator can be placed against the blasted surface and each of the four sections compared with the surface finish assisted with the use of an illuminated magnifier.
The Comparator is supplied in a protective case.
Complies with International Standards: ISO, 8503-1, ISO 8503-2, ASTM D 4417-AABS 772
Surface comparator specifications
| Part no. | Model type | Section profiles Metric | Section profiles Imperial |
| 7863400 | Grit | 25μm, 60μm, 100μm, 150μm | 1mils, 2.4mils, 4mils, 6mils |
| 7863410 | Shot | 25μm, 40μm, 70μm, 100μm | 1mils, 1.6mils, 2.8mils, 4mils |
| 7865580 | Illuminated Magnifier 2.5x (for viewing the Surface Comparator) | ||
