TY  - BOOK
TI  - Sri Lanka standard general requirements for the competence of testing and calibration laboratories: SLS ISO / IEC 17025:2018 (ISO/IEC 170225:2017), gr. NQ 
U1  - 001.405493 
PY  - 2018///
CY  - Colombo
PB  - Sri Lanka Standards Institution
KW  - Knowledge
ER  -