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1·When you use this ERM, please carefully break open the ampoule at the neck and pipette 10 ml from the ampoule into 250 ml volumetric flask and bring to volume by 0.1% NaOH solution.

临用时割开安瓿，用10毫升干燥洁净移液管从安瓿中准确移取浓样10 毫升于250 毫升容量瓶中，用0.1%氢氧化钠定容。

2·When you use this ERM, please carefully break open the ampoule at the neck and pipette 10ml from the ampoule into 250 ml volumetric flask and bring to volume by purified water.

临用时割开安瓿，用10毫升干燥洁净移液管从安瓿中准确移取浓样10 毫升于250 毫升容量瓶中，用纯水定容。

3·When you use this ERM, please carefully break open the ampoule at the neck and pipette 10 ml from the ampoule into 250 ml volumetric flask and bring to volume by 1% HNO3 or 1% HCl.

临用时割开安瓿，用10毫升干燥洁净移液管从安瓿中准确移取浓样10毫升于250毫升容量瓶中，用1%硝酸或1%盐酸定容。

4·When you use this ERM, please carefully break open the ampoule at the neck and pipette 10 ml from the ampoule into 250 ml volumetric flask and bring to volume by laboratory-pure water.

临用时割开安瓿，用10毫升干燥洁净移液管从安瓿中准确移取浓样10毫升于250毫升容量瓶中，用纯水定容。

5·When you use this ERM, please carefully break open the ampoule at the neck and pipette 10 ml from the ampoule into 250 ml volumetric flask and bring to volume by 1% HNO3 or 1% HCl solution.

临用时割开安瓿，用10毫升干燥洁净移液管从安瓿中准确移取浓样10毫升于250毫升容量瓶中，用1%硝酸或1%盐酸定容。