French to English Science Metrology

"Pour obtenir un résultat final comportant un nombre de chiffres compatibles avec l'incertitude de mesure, on arrondit le résultat de façon à ce que l'erreur due à l'arrondissage soir inférieure au 1/10 de l'incertitude de mesure" (AFNOR NF X 06-044"

This rule is referred to in a metrology procedure about rounding. I have found references to a "rule of 10:1", but I'm not sure it's the same thing, and to be honest I'm not finding much about the rule in French, which doesn't help. Can anyone tell me if the "rule of 10:1" is the same thing ?