Cal Env Stds

1 Page 1 SOP 49 – 2019 Page 1 of 8 This publication is available free of charge from: https://doi.org /10.6028/NIST.IR. 8250 SOP 49 Standard Operating Procedure for Calibration of Environmental Monitoring Standards by Direct Comp... Open at page → 2 Page 2 SOP 49 – 2019 Page 2 of 8 This publication is available free of charge from: https://doi.org /10.6028/NIST.IR. 8250 environmental conditions only, the instrument should only be used for environmental monitoring and shoul... Open at page → 3 Page 3 SOP 49 – 2019 Page 3 of 8 This publication is available free of charge from: https://doi.org /10.6028/NIST.IR. 8250 using direct comparison procedures over a series of days. Results are used to provide for calibration, e... Open at page → 4 Page 4 SOP 49 – 2019 Page 4 of 8 This publication is available free of charge from: https://doi.org /10.6028/NIST.IR. 8250 Equilibrate the standard and the instrument to be calibrated, X , for 2 hours to 4 hours in a suitable l... Open at page → 5 Page 5 SOP 49 – 2019 Page 5 of 8 This publication is available free of charge from: https://doi.org /10.6028/NIST.IR. 8250 Calculate the three observed measurement differences, d n, for each of the measurement parameters spread... Open at page → 6 Page 6 SOP 49 – 2019 Page 6 of 8 This publication is available free of charge from: https://doi.org /10.6028/NIST.IR. 8250 5 Assignment of Uncertainty Uncertainty for the s tandard, u s. The uncertainty for the standard is obta... Open at page → 7 Page 7 SOP 49 – 2019 Page 7 of 8 This publication is available free of charge from: https://doi.org /10.6028/NIST.IR. 8250 Table 2. Example Uncertainty Budget Table. Uncertainty Component Description Symbol Source Typical Distr... Open at page → 8 Page 8 SOP 49 – 2019 Page 8 of 8 This publication is available free of charge from: https://doi.org /10.6028/NIST.IR. 8250 Appendix A – Data Sheet Laboratory data and conditions: Operator Laboratory Conditions Before After Date... Open at page →