Uncertainty Calculation for the Determination of Chromium Oxide in Leather

This work describes the uncertainty calculation for determination of chromium oxide in leather. Following various steps which includes assembling a list sources uncertainty, with help basic formula used to calculate measure and as all parameters cause an influence on result because value associated it then effect diagram is made shows correlation between these indicates their result.All individual are evaluated by quantification. Mass, purity, molecular mass potassium dichromate calculated against volume sodium thiosulphate following first step test method standardization primary standard, dichromate. So overall depends uncertainties mass,