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???
11/25/09 23:00
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 		 #171175 - ASTM
Responding to: ???'s previous message
That's why ASTM (The American Society for testing and materials) defines two key properties for its standards, repeatability - the ability of the equipment to return answers agreeing with a stated percentage of each other, for a certain confidence level, when run by the same operator, and reproducibility - the ability of two DIFFERENT instruments to produce results that agree within a stated percentage of each other etc, and with different operators too.

A well specified standard usually finds reproducibility about 2.8 times worse than repeatability

Steve

List of 27 messages in thread
TopicAuthorDate
help me            01/01/70 00:00      
   first you must design            01/01/70 00:00      
      Or register and buy design and report            01/01/70 00:00      
   Ok...            01/01/70 00:00      
      Very amusing, but            01/01/70 00:00      
         You are totally right, of course...            01/01/70 00:00      
      you forgot to tie a pair of reading glasses to the lifebelt            01/01/70 00:00      
         A Thought            01/01/70 00:00      
            Allthough I hate generalisations...            01/01/70 00:00      
               That's where the scores could really help            01/01/70 00:00      
                  Same IP?            01/01/70 00:00      
               I'd say 12 hours or so ...            01/01/70 00:00      
   Does this look familiar to anyone?            01/01/70 00:00      
   the old nugget            01/01/70 00:00      
      I do no longer think, that it's always HW...            01/01/70 00:00      
         and ...            01/01/70 00:00      
            SO! ... that explains it ... you're an Ingeneer ...            01/01/70 00:00      
         another possibility            01/01/70 00:00      
            resolution.. precision.. accuracy.. demystifying the myth            01/01/70 00:00      
               I think you have 'em reversed.            01/01/70 00:00      
                  Some dictionaries claim the two are synonymous.            01/01/70 00:00      
                  No that is the correct definition            01/01/70 00:00      
                     Cartoon            01/01/70 00:00      
                  ASTM            01/01/70 00:00      
            Yes, that is a common misconception.            01/01/70 00:00      
            Many ways to fail            01/01/70 00:00      
   Well....            01/01/70 00:00      

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