Standard information:
　　Hazardous chemicals commonly used symbol is prescribed by the common dangerous chemicals classification and labels (GB 13690-92) ", the standard of common dangerous chemicals according to their risk characteristics were classified, and the provisions of the dangerous goods packaging logo, both for on hazardous chemicals commonly used classification and packaging, marking, is also applicable to other chemicals to the classification, packaging and marking.
　　The standard refers to the "dangerous goods packaging GB (190-90)".
　　Flag specification:
　　1, the types of signs: according to the risk characteristics and categories of commonly used dangerous chemicals, the main signs are 16 kinds, 11 kinds of deputy signs.
　　2, the graph of the sign: the main logo by the said hazardous properties of patterns, text description, background and categories of dangerous goods, four parts of the diamond symbols. There is no danger category alias graphic signs in vice.
　　3, marking the size, color and printing: according to the relevant provisions of GB 190.
　　4, the use of signs
　　1 marks the use of principle: when a dangerous chemical has more than one kind of risk, the main signs of the main danger category, and use the sub signs to indicate important other risk categories.
　　2 mark the use of the method: according to the relevant provisions of GB 190.