Penn Stainless stocks square ornamental tubing in a number of standard sizes and grades, inducing in 304, 304L and 316/316L.
Measurement system analysis. A measurement systems analysis (MSA) is a specially designed experiment that seeks to identify the components of variation in the measurement. Just as processes that produce a product may vary, the process of obtaining measurements and data may have variation and produce defects.
An important part of MSA is the partitioning of a set of items into Mokken scales and possibly a set of unscalable items. Mokken (1971, p. 184) deï¬ned a Mokken scale as a set