As the saying goes, if it isn't documented, it didn't happen. You may not have to record the result of every measurement but if there isn't even a tick-sheet, how would you prove to an auditor that every 10th piece had been measured? It's a bit of a tricky one because if for example you place every 10th piece on a fixture to check length and so long as it fits, production continues, you may have a hard job proving to an auditor that this is taking place, and only if there is a fail would you record the result and stop the process to take action. This is assuming it's a human process. If it were automated, the machinery may not need to make any records, only for example to stop and sound a warning tone if it detects a failure. Making sure that your process if sufficiently well documented would help, but again you could be at the mercy of a pedantic auditor