I3A IT4.189-1984(R2001)
Photography (Chemicals) - Ferric Ammonium Ethylenediaminetetraacetate Solution and Sodium Ferric Ethylenediaminetetraacetate Trihydrate (reaffirmation and redesignation of ANSI/NAPM IT4.189-1984 (R1995))
DIN 38413-5
German standard methods for the examination of water, waste water and sludge; individual constituents (group P); determination of ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA) by polarography (P 5)
ISO 3000:1974
Sodium tripolyphosphate for industrial use — Estimation of tripolyphophate content — Tris(ethylenediamine) cobalt (III) chloride gravimetric method