One key area for misunderstanding is “industry practice,” which usually means everyone in the industry knows it while those not in the industry don’t. The fact that a lot of what is normal in the industry is not written down in some sacred book somewhere adds fuel to the firestorm that can result.
The following notes may be of help to you when buying instruments or gages.
Buyers of calibration services should be aware that there are no hard and fast rules as to how many measurements will be taken on a given feature. Similarly, there are variations in what features will be inspected on a gage or instrument. The American Measuring Tool Manufacturers Association (AMTMA) is preparing a paper dealing with this subject.
If you don’t have experience regarding these matters, you should list what you expect when buying gages or instruments and discuss them with your supplier or service provider. Reputable suppliers prefer you do so to avoid possible misunderstandings later.