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Table 7 Uncertainty due to balance of Ohaus make (200 g) and Sartorius make (41 kg)

From: Evaluation of purity with its uncertainty value in high purity lead stick by conventional and electro-gravimetric methods

Weight component Balance used for weighing Weight taken (g) Uncertainty in weight as per certificate at k=2 Distribution Standard uncertainty in total weight u(x)/x
Weight of the metal m(g) Mettler AX 204 220g 2.015 0.0001 Normal 0.0001/2=0.00005
Weight of solution taken for PbO2 deposition do 50.5618 0.0001 Normal 0.0001/2=0.00005
Weight of PbO2 deposited do 0.0584 0.0001 Normal 0.0001/2=0.00005
Weight of solution taken for PbSO4 deposition do 50.5918 0.0001 Normal 0.0001/2=0.00005
Weight of PbSO4 deposited do 0.0741 0.0001 Normal 0.0001/2=0.00005
Weight of stock solution Sartorius; CC3002; 41 kg 2012.734 0.269 Normal 0.269/2=0.1345