判定规则和符合性声明指南 - cnas.org.cn

1 2022 1 20 2022 1 20 CNAS-GL015 Guidelines on Decision Rules and Statements of Conformity CNAS-GL015:2022 1 17 2022 1 20 2022 1 20 ILAC ILAC-G8:09/2019 ISO/IEC 98-4:2012 - 4 CNAS-TRL-010:2019 CNAS-GL015:2018 CNAS-GL015:2022 2 17 2022 1 20 2022 1 20 1 CNAS 2 CNAS-CL01:2018 CNAS-TRL-010:2019 GB/T 27418 ISO/IEC 98-4.

2 2012 4 uncertainty of measurement--Part 4:Role of measurement uncertainty in conformity assessment ISO/IEC 99 VIM International vocabulary of metrology Basic and general concepts and associated terms (VIM) ILAC-G8:09/2019 Guidelines on decision rules and statements of conformity 3 ISO/IEC 99 VIM ISO/IEC 98-4:2012 GB/T 27418 tolerance limit (TL) [ ISO/IEC 98-4:2012 ] tolerance interval 1 CNAS-GL015:2022 3 17 2022 1 20 2022 1 20 2 3 [ ISO/IEC 98-4:2012 ] measured quantity value [ ISO/IEC 98-4:2012 ] acceptance limit (AL) [ ISO/IEC 98-4:2012 ] acceptance interval 1 2 [ ISO/IEC 98-4:2012 ] rejection interval 1 [ ISO/IEC 98-4.]

3 2012 ] guard band (w) wTLAL [ ISO/IEC 98-4:2012 ] decision rule [ CNAS-CL01:2018 ] simple acceptance ALTL CNAS-GL015:2022 4 17 2022 1 20 2022 1 20 indication 1 2 [ ISO/IEC 98-4:2012 ] maximum permissible error (of indication)(MPE) [ ISO/IEC 98-4:2012 ] expanded measurement uncertainty (U) k ()cUkuy 1 YyU y Y yU yU Y yUYyU 2 U 95% 2k [ ISO/IEC 99:2007 ] tolerance [ ISO/IEC 98-4:2012 ] test uncertainty ratio (TUR) 95% U specific risk global risk CNAS-GL015.

4 2022 5 17 2022 1 20 2022 1 20 nominal quantity value 1 100 2 1000mL [ ISO/IEC 99:2007 ] 4 CNAS-CL01:2018 CNAS-CL01:2018 1 1 CNAS-CL01:2018 CNAS-CL01:2018 b / / b c a e a) CNAS-GL015.

5 2022 6 17 2022 1 20 2022 1 20 b) c) CNAS-CL01:2018 / 5 1 A B B 1 6 w TL AL wTLAL wU / 2 CNAS-GL015.

6 2022 7 17 2022 1 20 2022 1 20 2 0 0w 50% 0w 3 3 4 CNAS-GL015:2022 8 17 2022 1 20 2022 1 20 4 wU 5 5 wU 7

7 CNAS-GL015:2022 9 17 2022 1 20 2022 1 20 6 A B 6 1 2 1/3 3 WADA TD2021DL DL TL g g WADA _cMaxu _cMaxgku g

8 4 ISO/IEC 98-4:2012 1 5 CNAS-GL015:2022 10 17 2022 1 20 2022 1 20 CNAS-CL01:2018 w U wrU ALTLw 2 2 w 6 3U < 3 < ILAC G8 U < ISO 14253-1.

9 2017 <5% 0 <50% U ALTLw < rU r r 2% 50% CNAS-GL015:2022 11 17 2022 1 20 2022 1 20 OIML TUR>3:1 5:1 2% ISO/IEC 98-4:2012 8 CNAS-CL01.

10 2018 7 CNAS-GL015:2022 12 17 2022 1 20 2022 1 20 7 9 0 CNAS-CL01:2018