[冶金行业标准] YB/T 5277-2014 冶金用铬矿石
[冶金行业标准] YB/T 5277-2005 冶金用铬矿石
[冶金行业标准] YB/T 5265-2007 耐火材料用铬矿石
[国家标准] GB/T 24243-2009 铬矿石 采取份样