Chromium jẹ irin pẹlu ọpọlọpọ awọn ipinlẹ valence, eyiti o wọpọ julọ eyiti o jẹ Cr (III) ati Cr (VI).Lara wọn, majele ti Cr (VI) jẹ diẹ sii ju awọn akoko 100 ti o ga ju ti Cr (III).O jẹ majele pupọ si eniyan, ẹranko ati awọn oganisimu omi.O ti wa ni akojọ si bi carcinogen akọkọ nipasẹ International Agency for Research on Cancer (IARC).
chromatograph CIC-D120 ion ati inductively pilasima mass spectrometry (ICP-MS) ni a lo lati ṣe itupalẹ chromium ijira (VI) ninu awọn nkan isere pẹlu iyara giga ati ifamọ giga, eyiti o pade awọn ibeere ti awọn iṣedede aabo toy European Union EN 71-3 2013+A3 2018 ati RoHS fun wiwa chromium (VI) (gẹgẹ bi IEC 62321) .Ni ibamu si (EU) 2018/725, ohun kan 13 ti Apá III ti European Union Toy Safety šẹ 2009/48/EC Annex II, awọn Iwọn iṣilọ ti chromium (VI) jẹ atunṣe gẹgẹbi atẹle:
Akoko ifiweranṣẹ: Oṣu Kẹrin Ọjọ 18-2023