is their uncertainties of the SIO reported (19 April 2014) Primary Standard Preparation and Estimated Analytical interference. 2) CFC-12 0.16 % Propagation CFC-11 0.62 % uncertainty (from CFC-113 6.8 % primary scale to HFC-134a 0.46 % Empa instrument HCFC-22 0.40 % working standards, 0.94 % HCFC-142b 2 sigma) 3) CFC-12 0.16 % Measurement CFC-11 0.62 % uncertainty, 2 CFC-113 6.8 % HFC-134a 0.46 % HCFC-22 0.40 % 0.94 % HCFC-142b CFC-12 1.14 % Overall expanded CFC-11 1.45 % uncertainty CFC-113 9.74 % SQRT of sum of HFC-134a 1.72 % squared 1)-3) HCFC-22 1.27 % 2.43 % HCFC-142b Coverage factor: Expanded uncertainty:see above table
is their uncertainties of the SIO reported (19 April 2014) Primary Standard Preparation and Estimated Analytical interference. 2) Propagation uncertainty (from primary scale to Empa instrument working standards, 2 sigma) CFC-12 CFC-11 CFC-113 HFC-134a HCFC-22 HCFC-142b 0.16 % 0.62 % 6.8 % 0.46 % 0.40 % 0.94 % 3) Measurement uncertainty, 2 CFC-12 CFC-11 CFC-113 HFC-134a HCFC-22 HCFC-142b 0.16 % 0.62 % 6.8 % 0.46 % 0.40 % 0.94 % Overall expanded uncertainty SQRT of sum of squared 1)-3) CFC-12 CFC-11 CFC-113 HFC-134a HCFC-22 HCFC-142b 1.14 % 1.45 % 9.74 % 1.72 % 1.27 % 2.43 % Coverage factor: Expanded uncertainty:see above table
elementa.000075.s009.docx