Advanced Weighing Designs

1 Page 1 SOP 28 – 2019 Page 1 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 SOP No. 28 Recommended Standard Operating Procedure for Using Advanced Weighing Designs 1 Introd... Open at page → 2 Page 2 SOP 28 – 2019 Page 2 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 laboratory measurement assurance program to ensure traceability of laboratory standards. Verify... Open at page → 3 Page 3 SOP 28 – 2019 Page 3 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 2 Methodology Scope, Precision, Accuracy This method can be performed on any type of balance or... Open at page → 4 Page 4 SOP 28 – 2019 Page 4 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 2.3.1. Calibrated reference standards (usually starting at 1 kg or 100 g), calibrated check stan... Open at page → 5 Page 5 SOP 28 – 2019 Page 5 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 amounts of weight material. Weights should be handled and stored in such a way that they stay cl... Open at page → 6 Page 6 SOP 28 – 2019 Page 6 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 Table 2. Common weighing designs. Design ID Description n Observations d.f. Degrees of freedom R... Open at page → 7 Page 7 SOP 28 – 2019 Page 7 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 and R. C. Raybold, July 1980, with updates to conform to the international formula for calculati... Open at page → 8 Page 8 SOP 28 – 2019 Page 8 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 4.2.Weighing designs integrate a suitable check standard (See GLP 1, SOP 9 and SOP 30). 4.3.The... Open at page → 9 Page 9 SOP 28 – 2019 Page 9 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 Multiple starting restraint schemes with standards calibrated at the same time against the same... Open at page → 10 Page 10 SOP 28 – 2019 Page 10 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 5672 for many additional weighing designs, and variations on the designs noted in this section.... Open at page → 11 Page 11 SOP 28 – 2019 Page 11 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 Using a 5-1 design with two restraints, and the check standard is the difference between the tw... Open at page → 12 Page 12 SOP 28 – 2019 Page 12 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 If a C.1 descending series is used, the following equation is used to calculate the between-tim... Open at page → 13 Page 13 SOP 28 – 2019 Page 13 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 provided in SOP 29 and may be included if corrective action is not taken. ( See NISTIR 6969, SO... Open at page → 14 Page 14 SOP 28 – 2019 Page 14 of 14 This publication is available free of charge from: https://doi. org/10.6028/NIST.IR.5672 - 201 9 factors are considered as a part of the measurement process when obtaining the standard deviati... Open at page →