►符合DIN ISO 1042標準 ►每支瓶身圴有獨立編號 ►每支定量瓶均附有獨立證書Volumetric FlasksVolumetric Flasks Class A in compliance with DIN ISO1042 Standards with INdividual Work Certificate and Serial Number. ◆單獨校正附獨立編號及證書►型錄下載
