One Spec, Two Spec, Three Spec, More

摘要

In a perfect world, there would be just one international standard. In today's global economy, standards for inspection products or inspection product testing conditions are invaluable to ensure that products perform similarly by different gaging manufacturers in different parts of the world. In a perfect world, there would be just one international standard, and every inspection product designed for that one standard would be the same. If only it were that simple. Fortunately (or unfortunately, depending on your viewpoint), people in different parts of the world have different ideas and priorities for product standards. Just as there are different languages and different interpretations of identical words - and even differences in agreeing on a common currency or measuring system-it's difficult for people to agree on a single way to define a product. This results in several different inspection product standards in various areas of the world for the same product concept. Often, these standards are very similar, differing only in a mathematical formula. However, sometimes the standards are based on completely different philosophies for how the apparatus is used. Thus, the specifications in the standard can be significantly different. Let's take a look at some examples starting with portable surface gaging.