Joseph B. Reid >Does Terry mean that the units that I listed in >USMA 22931 ceased being metric when SI was defined? >They indisputably were once "metric"
I don't know about the past. One of my criticisms of the SI brochure is that it embeds the current rules within superceded rules. I am trying to find out how things are defined *now* so that I can use correct current terminology. I need to provide advice that it true and applicable for the designs of today. I read: "the International System of Units (SI), which is the modern form of the metric system." and I conclude: 1. SI unit = unit of the 'modern form of the metric system' (we appear to agree about this). 2. Non-SI unit = not a unit of the 'modern form of the metric system' (we do not appear to agree about this). Am I wrong in my second conclusion? Thank you for bearing with me on this. I appreciate it.
