Application of indicators and quality index as a tool for critical analysis and continuos improvement of laboratories accredited against ISO/IEC 17025 - Catini, Raquel Helena; Souza, Fernando Jose Pires de; Pinhel, Maria de Fátima Martins; Mendonça, André de Oliveira; Pacces, Vitor Hugo Polisel; Olivares, Igor Renato Bertoni (Accreditation and Quality Assurance, 2015)