Regulation of Dangerous Goods
Main ContentChapter 3.3 Marking
| 3.3.1 | Legal Requirements | |||||||||||||||||
| 3.3.1.1 |
The marking requirements are stipulated in sections 10 to 12 of Schedule 6 of Cap. 295G which are replicated below:
10. The outer surface of an outermost S2DG packaging must be legibly marked with all of the following information— (a) the UN number of each type of S2DG contained in the S2DG packaging and, in the case of Class 3A S2DG, the HK number; (b) the proper shipping name or true name of each type of S2DG contained in the S2DG packaging, in either English or Chinese, as specified in the code of practice.
11. The information specified in section 10 of this Schedule must be marked in such a manner that the information is clearly identifiable despite any exposure to open air and water.
12. Section 10 of this Schedule does not apply to an outermost S2DG packaging if— (a) the outermost S2DG packaging is transparent; and (b) the S2DG packaging immediately inside the outermost S2DG packaging is— (i) marked in compliance with section 10 of this Schedule; and (ii) visible from outside. |
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| 3.3.2 | General Application | |||||||||||||||||
| 3.3.2.1 | This chapter provides standards and guidelines on the marking of DG as required in Schedule 6 of Cap. 295G. The UN number(s) / HK number(s) and the proper shipping name(s) of different DG are provided at column 1 and column 2 of the DG List respectively. | |||||||||||||||||
| 3.3.3 | Marking Requirements | |||||||||||||||||
| 3.3.3.1 | Contents of Marks | |||||||||||||||||
| 3.3.3.1.1 |
The marking on a DG package shall be comprised of the following information:
(a) For Class 3A DG, the HK number (i.e. H301) and the name of the DG (i.e. proper shipping name or true name) in either English or Chinese; or (b) For other DG, the corresponding UN number (i.e. the 4-digit number specified in column 1 of the DG List and preceded by the letter “UN”) and the name of the DG (i.e. proper shipping name or true name) in either English or Chinese. |
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| 3.3.3.1.2 | If multiple types of DG are packed in the same packaging, the information of each type of DG shall be displayed, except for duplicate UN number / HK number or name. | |||||||||||||||||
| 3.3.3.1.3 |
In marking the name of the DG, the following shall be observed:
(a) Proper Shipping Name (PSN) refers to the description of a DG in CAPITAL letters (plus any numbers, Greek letters, “sec”, “tert”, and the letters m, n, o, p, which form an integral part of the name) as stated in column 2 of the DG List. An alternative PSN may be shown in brackets following the main PSN (e.g., UN 1982 TETRAFLUOROMETHANE (also known as REFRIGERANT GAS R14)). In this case, marking either the main or alternative PSN is acceptable. e.g. UN 1982 TETRAFLUOROMETHANE or UN 1982 REFRIGERANT GAS R14;
(b) Whenever the PSN in column 2 of the DG List is a combination of several distinct names separated by “or” (e.g. UN 1381 PHOSPHORUS, WHITE or YELLOW, DRY or UNDER WATER or IN SOLUTION), it means that this entry may consist of more than one substance. In this situation, only the most appropriate name, which the DG actually is, shall be marked. e.g. marking of the most appropriate name among: UN 1381 PHOSPHORUS, WHITE, DRY UN 1381 PHOSPHORUS, WHITE, UNDER WATER UN 1381 PHOSPHORUS, WHITE, IN SOLUTION UN 1381 PHOSPHORUS, YELLOW, DRY UN 1381 PHOSPHORUS, YELLOW, UNDER WATER UN 1381 PHOSPHORUS, YELLOW, IN SOLUTION;
Another example: UN 2793 FERROUS METAL BORINGS, SHAVINGS, TURNINGS or CUTTINGS marking of the most appropriate name among: UN 2793 FERROUS METAL BORINGS UN 2793 FERROUS METAL SHAVINGS UN 2793 FERROUS METAL TURNINGS UN 2793 FERROUS METAL CUTTINGS;
(c) Apart from PSN, marking of “true name” of a DG is also acceptable. “True name” can be a recognised chemical or other name currently used in scientific and technical handbooks, journals and texts or a name commonly used and understood by the trade and public having regard to the usage of the DG. Examples of “true name” were tabulated below:
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| 3.3.3.2 | Display of Marks | |||||||||||||||||
| 3.3.3.2.1 |
All marks shall: (a) be readily visible and legible from the outside; (b) be clearly identifiable despite any exposure to open air and water; (c) be displayed on a background of contrasting colour on the outer surface of the packaging; (d) be displayed in an upright position or a flat position; (e) be so placed on the packaging that they are not covered or obscured by any part or attachment to the packaging or any other label or mark; and (f) not be located with other labels or marks that could substantially reduce their effectiveness. |
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| 3.3.3.2.2 | All marks shall be displayed at the outer surface of the outermost packaging, unless the outermost packaging is transparent and the marks are displayed at the packaging immediately inside and fulfilling 3.3.3.2.1 above. | |||||||||||||||||
| 3.3.3.3 | Specifications of Marks | |||||||||||||||||
| 3.3.3.3.1 |
The letters / characters of the marks (i.e. UN number, HK number and the name of the DG) in respect of different package sizes shall be at least of the following height:
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