Calibration of Volumetric Ware Gravimetric Method

1 Page 1 11/15/2006 SOP 13 Page 1 of 7 SOP 13 Standard Operating Procedure for Calibration of Volumetric Ware, Gravimetric Method 1 1 Introduction 1.1 Purpose of Test Volumetric flasks, pipets, graduated cylinders, burets, and si... Open at page → 2 Page 2 11/15/2006 SOP 13 Page 2 of 7 Table 1. Laboratory environmental conditions Procedure Temperature Relative Humidity Gravimetric 20 °C to 23 °C, a set point ± 2 °C, maximum change 1 °C/h 40 % to 60 % ± 10 % max change / 4... Open at page → 3 Page 3 11/15/2006 SOP 13 Page 3 of 7 2.3.7 Distilled or deionized water (See GLP 10). 2.3.8 Stopwatch or other suitable timing device (does not require calibration). 2.4 General Considerations 2.4.1 All glassware must be meticu... Open at page → 4 Page 4 11/15/2006 SOP 13 Page 4 of 7 2.5.9 Test the next interval in the same manner - from the zero mark to the next interval of test. 2.5.10 For burets with a specified waiting time, empty as in 2.5.6 to within a few millimet... Open at page → 5 Page 5 11/15/2006 SOP 13 Page 5 of 7 2.7.7 Perform volume calculations as described in Section 3. 2.8 Calibration of Flasks (To Deliver) 2.8.1 Clean but do not dry flask. 2.8.2 Place an appropriately sized funnel in the neck an... Open at page → 6 Page 6 11/15/2006 SOP 13 Page 6 of 7 Table 2. Variables for volume equation Variable Description IL - IE the difference, in grams, obtained from the balance indications associated with the loaded vessel and the empty vessel. Q... Open at page → 7 Page 7 11/15/2006 SOP 13 Page 7 of 7 level of confidence. See SOP 29 for the complete standard operating procedure for calculating the uncertainty. 5.1 The standard uncertainty for the standard, u s, is obtained from the calibr... Open at page →