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除上述一般级别试剂外,实验室里还有一些特殊试剂,如指示剂、生化试剂和超级纯试剂等.这些都已在瓶签上注明.我们只要看到瓶签上有表中某一个标志,就可知道该化学试剂是几级品.为了醒目美观,瓶子上的标签还有各种各样的装璜.例如二级品是红色的,但有的在标签的四周套上红框粗线;有的将试剂名称用红色字或在名称上衬红底;近几年用得较多
In addition to the above generic reagents, there are special reagents in the laboratory, such as indicators, biochemical reagents, and super pure reagents. These have been indicated on the bottle sign. We only need to see one of the tables on the bottle sign. Signs, you can know that the chemical reagents are several products. In order to be eye-catching, the label on the bottle there are a variety of mounting. For example, the secondary product is red, but some of the labels around the red frame Thick line; some use the red name or red name on the name of the reagent; used more in recent years