MIL-DTL-14067C
FIGURE 2. Apparatus for determination of carbides in magnesium.
4.5.5 Total Fe (ICP method).
4.5.5.1 Reagents. Ultra high purity acids shall be used for sample dissolution.
It is advisable to use commercially available stock solutions with certified concentrations
traceable to primary standards (National Institute of Standards and Technology or international
measurement standards). Stock solutions shall be replaced after one year or in accordance with
manufacturer recommendations. Alternately, stock solutions may be prepared in-house from
high purity metals or their salts. The maximum recommended shelf life is one year from date of
initial preparation.
a. Certified Fe stock solution shall contain 100.00 µ g/mL Fe in 5.00 % 1:1 HNO3 (v/v).
b. Certified Mg stock solution shall contain 20,000.00 µ g/mL Mg in 0.10 % 1:1 HNO3
(v/v).
c. Nitric Acid (1:1 HNO3), concentrated, 67 70 %.
d. Distilled water.
4.5.5.2 Procedure.
19
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business