1. ABNT NBR ISO 5725. Accuracy (accuracy and precision) of measurement methods and results. Part 1: General Principles and Definitions. Rio de Janeiro, 2018.
2. ABNT NBR ISO 17665-1:2010. Sterilization of health products - steam. Brazilian Association of Technical Standards. ABNT NBR ISO 17665-1: 2010. Sterilization of health products - Steam. Brazilian Association of Technical Standards.
3. Brasil AN. Resolution-RDC No. 15 of March 15, 2012. Provides for best practice requirements for the processing of health products and other measures. Brasilia 2012
4. Brazilian Association of Technical Standards. NBR 5462: reliability and maintainability. ABNT; 1994
5. Chui QS, Barros CB, Silva TD. Repeatability (r) and reproducibility (R) indexes from interlaboratorial program: how to use them. Química Nova. 2009;32(8):2209–13.