在制作危险标签时，预先印制菱形图案可能会导致标签上的菱形图案中并非所有菱形都填满危险符号。危险物质和混合物的标签上是否允许出现这种空菱形？

在制作危险标签时，预先印制菱形图案可能会导致标签上的菱形图案中并非所有菱形都填满危险符号。危险物质和混合物的标签上是否允许出现这种空菱形？

When preparing hazard labels, the pre-printing of the diamond form may result in labels where not all diamonds are filled with hazard symbols. Would such empty diamonds be allowed on labels of hazardous substances and mixtures?

众所周知，标签的批量预印是当前行业惯例。这意味着首先打印标签背景，然后在第二步中在其上套印特定的标签信息。如果这两个步骤导致标签只需要几个危险象形图，则可能需要将一个或多个预印菱形留空，或者在第二步中将其涂黑。虽然CLP并未明确禁止在标签上使用空白或涂黑菱形，但第19(1)条要求供应商在标签上包含旨在传达相关危险具体信息的相关危险象形图。此外，第25(3)条要求，任何超出强制性标签要素的信息不得与后者提供的信息相矛盾或产生疑问。因此，由于目前中小企业缺乏合适的印刷技术，可能无法始终仅包含满足这些条件的危险象形图。这意味着任何空白或涂黑的菱形都应根据本规定进行标注。如果无法避免出现空白菱形，建议用实心套印将其覆盖，使其完全涂黑，从而避免出现因印刷错误而遗漏相关危险符号的印象。

It is acknowledged that mass pre-printing of labels is current practice in industry. This means that the label background is printed first before it is overprinted with the specific label information in a second step. In cases where this two-step process leads to a situation where only a few hazard pictograms are needed for the label, one or more pre-printed diamonds may have to be left empty or, alternatively, be blacked-out in a second step. Although CLP does not explicitly forbid the use of blank or blacked out diamonds on the label, Article 19(1) requires suppliers to include relevant hazard pictograms on the label which are intended to convey specific information on the hazards concerned. Furthermore, Article 25(3) requires that any information which goes beyond the mandatory label elements; must not contradict or cast doubt on the messages provided by the latter. Therefore, due to the current lack of suitable printing techniques afforded by SMEs, it may not always be possible to only include hazard pictograms that fulfil these conditions. This means that any blank or blacked out diamond(s) should be seen in the light of this provision. In cases where empty diamonds are unavoidable, it is recommended to cover them up with a solid overprint, which blacks them out completely and thereby avoids the impression that relevant hazard symbols may have been left off the label through a printing mistake.