A reference material for calibrating and verifying the calorimeter of propellant explosion heat is composed of nitrocellulose(NC),nitroglycerine(NG),centralite and vaseline.
采用
棉、
油、中定剂和凡士林为火药爆热热量计检定用标准物质的组成成分,通过生产工艺优制备出该标准物质。
A reference material for calibrating and verifying the calorimeter of propellant explosion heat is composed of nitrocellulose(NC),nitroglycerine(NG),centralite and vaseline.
采用棉、油、中定剂和凡士林为火药爆热热量计检定用标准物质的组成成分,通过生产工艺优制备出该标准物质。
ABSTRACT Objective： To establish a method for determining the content of josamycin by HPLC and compare it with the microbial assay.
摘 要 目的：建立HPLC法测定交沙霉
含量的方法并与微生物检定法结果相比较。
A system of verifying anemoscope in tobacco specific smoking machine was designal.The theory and component parts of this system was introduced and the method of velocity at a fixed point was modified.
本文简述了烟草专用吸烟机风速仪的检定装置———多普勒激光流速测速系统的组成及工作原
,
了定位点风速的测量修正方法。
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