ROHS
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什麼是RoHS
lRoHS
–Restriction of Hazardous Substances
l) Lead---Pb-鉛
l(2) Mercury---Hg-汞
l(3) Hexavalent chromium---Cr(VI)-鉻酸鹽
l(4) Cadmium---Cd-鎘
l(5) Polybrominated biphenyls---PBB-多溴聯苯
l(6) Polybrominated diphenyl ethers---PBDE-多溴二苯醚
l(7)聚氯乙烯， Polyvinyl chloride (PVC)等
● Hexavalent chromium (六價鉻)
Galvanized sheet iron with chroma-ting is zinc ferrite, and additionally the
heat-resistance is improved by making a chromate film with the conversion
treatment. Chromating is easy to deal with since chromium is stable in the
aqueous liquor as a metal ion, its quality is easily controlled, and the cost is relatively inexpensive.
經染色處理的鍍鋅薄鋼板為鋅亞鐵鹽，另外經過鍍上一層鉻膜後阻熱性
會提高。 染色處理易于進行，是因爲鉻以金屬離子的形式穩定的存在溶液中，
其 性質很容易控制，因此成本相對的低廉。
＜Venenosity＞
It has been told that there is a danger of cancer since hexavalent chromium
easily vaporizes and is absorbed by the body. It is known that it may cause
mucocutaneous ulcer, nasal septal perforation, lung cancer, lung disease, and
so forth on a danger to the human body.
據説由於六價鉻易蒸發和被人體吸收而引起癌症。大家都知道它可能
導致皮膚潰瘍，鼻穿孔，肺癌，肺炎等，很大程度上危害人體健康。
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