Sieve Analysis of Granular Metal Powders

Sieve Analysis Determine as directed under Sieve Analysis of Granular Metal Powders, Appendix EC. 

Mercury Determine as directed in the monograph for Iron, Reduced, but use 2 g of sample and 40 mL of Sodium Citrate Solution in preparing the Sample Solution, and prepare the Diluted Standard Mercury Solution as follows Transfer 4.0 mL of Mercury Stock Solution into a 250-mL volumetric flask, dilute to volume with 1 N hydrochloric acid, and mix (1 mL = 4 ig of Hg). Modify the first sentence of the Procedure to read Prepare a control by treating 1.0 mL of Diluted Standard Mercury Solution (4 p,g Hg) in the same manner. Sieve Analysis Determine as directed under Sieve Analysis of Granular Metal Powders, Appendix IIC. 

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