论文部分内容阅读
定量分析中目前用纸带,塑料带,纸制的指套和细纱手套夹持称量瓶。用这几种物品夹持称量瓶各有优点,但操作均不方便。我们设计并制做的称量瓶组合钳(如图1)。由“主钳”(如图2,用来夹持称量瓶或瓶身)和“副钳”(如图3,用来夹持称量瓶盖)配套组成。主钳和副钳分别将瓶身和瓶盖钳住,便可进行“称量”试样操作了。称量瓶组合钳由金属材料制成,可以避免沾污,使用方便。它不仅是夹持称量瓶的专用器具,还可以用来夹持小烧杯等柱形器皿,表面皿等片形器皿。
Quantitative analysis of the current paper, plastic tape, paper finger cot and yarn gloves holding weighing bottle. Weighing bottles with these items have advantages, but the operation is not convenient. We designed and made weighing bottle combination pliers (Figure 1). It is made up of “main clamp ” (as shown in Figure 2, used to clamp the weighing bottle or bottle) and “vice clamp ” (shown in Figure 3, used to hold the weighing bottle cap). The main forceps and vice forceps respectively clamp the bottle body and the cap, so that “weighing” sample operation can be performed. Weighing bottle combination pliers made of metal materials, to avoid contamination, easy to use. It is not only a special instrument for weighing bottles, but also can be used to hold small beakers and other cylindrical vessels, surface vessels and other sheet vessels.