PYREX 进口 棕色容量瓶 55640

PYREX 进口 棕色容量瓶 55640
低光化染色玻璃为对光线敏感的材料提供保护。保护颜色
这是烧瓶的一个组成部分，它保留了机械强度、化学稳定性和热
耐热玻璃品牌labware的抵制。

PYREX 进口 棕色容量瓶 55640

低光化染色玻璃为对光线敏感的材料提供保护。保护颜色 这是烧瓶的一个组成部分，它保留了机械强度、化学稳定性和热 耐热玻璃品牌labware的抵制。

These 500mL Class A PYREX  volumetric flasks are made from low actinic stained glass to provide protection for materials sensitive to light. The protective color is an integral part of the flask, which retains its mechanical strength, chemical stability and thermal resistance. The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for No. 19 Standard Taper glass stoppers. For replacement stoppers see No. 7650. The graduation line is sharp and permanent and large white block letters make the inscription easy to read. These Class A volumetric flasks have been manufactured to Class A tolerances as established by ASTM E- 694 for volumetric ware, ASTM E-542 for calibration of volumetric ware and ASTM E-288 for volumetric flasks.

PYREX 进口 棕色容量瓶 55640

PYREX 进口 棕色容量瓶 55640