EPA Method 108B

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EPA Method 108B:
DETERMINATION OF ARSENIC CONTENT IN ORE SAMPLES FROM NONFERROUS SMELTERS

Summary:
Arsenic bound in ore samples is liberated by acid digestion and analyzed by flame atomic absorption spectrophotometry (AAS).

Scope:
This method applies to the determination of inorganic As content of process ore and reverberatory matte samples from nonferrous smelters and other sources as specified in an applicable subpart of the regulations. Samples resulting in an analytical concentration greater than 10 ?g As/ml may be analyzed by this method. For lower level arsenic samples, Method 108C should be used.

Date Issued:
1/1/1996