TY - BOOK TI - Proficiency testing by interlaboratory comparisons - part 1 : development and operation of proficiency testing schemes (ISO T2 - MS ISO/IEC GUIDE 43-1 : 2000 U1 - MS ISO/IEC GUIDE 43-1 2000 PY - 2000/// CY - Putrajaya PB - Department of Standards Malaysia KW - Standardization KW - Malaysia ER -