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rhinohorn

rhinohorn

Petroleum
Joined
Oct 3, 2001
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2
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US
Could someone tell me what "RMS" stands for as it applies to surface roughness.
 
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RMS: Root Mean Square. This is one of the standard methods used to calculate surface roughness. RMS is measured in either micro-inches or micro-meters. A low measurement indicates a smooth, high-quality surface finish. Other methods of calculating surface roughness include Ra (Arithmetic Mean Roughness) and Rt (Maximum Peak-to-Valley Roughness Height).

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