| 摘要 |
<p>Chemical reagent paper is packed for storage and distribution in a tube with a desiccating closure (I) at one end and a closure with a grip for the piece of paper at the other. (I) may be a hollow stopper contg. desiccant, or the desiccant may be contained between a perforated partition in the tube and a solid end-plate. In either casE, one part of the exterior wall of the closure is pref. transparent. At the other end of the tube, the paper is pref. held pinched in a notch in a flexible inner section of the stopper.</p> |
