salt spray solution

huangyhg

salt spray solution
hi,
can somebody enlighten me on the requirement of chemical composition for nacl.the grade i'm looking for is extra pure and astm b 117 specifies that the salt used shall be free of nickel and cooper and contains not more than 0,1% of sodium iodide and max 0.3% of total impurities.i need to know how to establish other elements/compounds not specified.these are required for salt spray analysis for sulfuric acid and chromic acid anodizing(ams 2470 & 2471).thanks for advise.
check out our whitepaper library.
morton food grade 999 meets the requirements of astm b117.  it is 99.9% pure. they will provide a c of a with each shipment.
thank you