Resumen
Method A is applicable to products having a total iron content from 1 to 25 % (m/m), and method B is applicable to products having a total iron content from 0.2 to 2 % (m/m). ϲʿ 7990 should be read in conjunction with ϲʿ 4297. Specifies principle, reactions (method A only), reagents, apparatus, sampling and samples, procedure and expression of results.
Ciclo de vida
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Anteriormente
Retiradaϲʿ/R 313:1963
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Ahora
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