1 H40.159 is a billable ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2  Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes. 3  This is the American ICD-10-CM version of H40.159.
So Percent purity is the ratio of the mass of the pure substance to the mass of the impure sample, expressed as a percentage. This is very similar to the percent yield, and to calculate percent purity, we use g pure X 100% g impure Let's try an example. 1.00g Fe ore contains 0.6g Fe metal. What is the percent purity? 0.6/1.0 X 100% = 60 %
Other Nitrogen Grades. Low-purity grades of nitrogen are composed of 90 up to 99.998 percent nitrogen. The common low-purity grade names include High Purity, Zero, Prepurified, Oxygen Free, Extra Dry and Industrial. The percentage of contaminates in these grades varies greatly. Oxygen Free grades contain less than 0.5 parts per million of oxygen.