Dangerous Substances in Harbour Areas Regulations (Northern Ireland) 1991

PART II SPECIFICATION OF HAZARD WARNING SIGNS

1.  The hazard warning sign to be used on a hazard warning panel, on a label to be affixed to a compartmented tank barge or to be affixed to a freight container, portable tank or receptacle shall be that shown in column 3 of Part I for the classification of the substance shown in the corresponding entry in column 2, and the signs shall conform in form and colour to those shown in column 3, except that—

(a) in the case of the signs for the classifications “non-flammable compressed gas”, “flammable gas”, “flammable liquid” and “substance which in contact with water emits flammable gas”, the symbol and lettering may be in white;

(b) in the case of the sign for the classification “spontaneously combustible substance”, the lettering may be in white;

(c) in the case of the signs for the classifications “oxidizing substance” and “organic peroxide”, the part of the symbol showing the flame may be completely in black;

(d) in place of the word “toxic”, the word “poison” may be used wherever it occurs;

(e) in place of the word “flammable”, the word “inflammable” may be used

(f) the sign may show ;he class number in accordance with the IMDG Code and in the case of Class 7 must show the Class number.

2.  Each hazard warning sign shall be in the form of a square set with its sides at an angle of 45° to the vertical and the length of the sides shall be—

(a) in the case of signs on hazard warning panels, not less than 200 millimetres;

(b) in the case of signs on the labels for compartmented tank barges, not less than 95 millimetres;

(c) in the case of signs, other than those for substances in Class 7, to be affixed to a freight container, portable tank or receptacle, not less than 100 millimetres. except that, in the case of receptacles that are of such dimensions that they can only bear smaller signs, the sign should be as large as is reasonably practicable;

(d) in the case of signs for substances in Class 7 to be affixed to a freight container, portable tank or receptacle, 100 millimetres.

3.  Hazard warning signs to be affixed to a freight container, portable tank or receptacle shall have a line of the same colour as the symbol, 5 millimetres inside the edge and running parallel to it. (The broken line which surrounds each sign delineates the edge of that sign and need not be shown.)

4.  Hazard warning signs to be affixed to hazard warning panels and labels for compartmented tank barges, shall for any part of the sign that is not black have a black border—

(a) in the case of signs for hazard warning panels, at least 2 millimetres wide;

(b) in the case of signs for labels, at least 1 millimetre wide.