DIN EN 13368-2 E:2016-07
肥料 用色谱法测定肥料中的螯合剂 第2部分:用离子对色谱法测定 [o,o] EDDHA、[o,o] EDDHMA 和 HBED 螯合的铁或螯合剂的量(草案)
Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 2: Determination of Fe chelated by [o,o] EDDHA, [o,o] EDDHMA and HBED, or the amount of chelating agents, by ion pair chromatography