DSC检查方法： For Polyethylene—Determine the thermogram under nitrogen at temperatures between 40° and 200° at a heating rate between 2° and 10° per minute followed by cooling at a ratebetween 2° and 10° per minute to 40° 这句话的意思是，检测的初始温度是40°，结束温度是200°，升温速度在2°和10°之间，然后冷却速度在2°和10°之间，直到降到40°？ 难道说升温速度我可以随便设置，而且一定要升高之后还有降温？ The thermogram of thespecimen is similar to the thermogram of USP Low-Density Polyethylene RS,similarly determined, and the temperature of the endotherm (melt) in thethermogram of the specimen does not differ from that of the USP ReferenceStandard by more than 8.0°. 这里的判断标准仅仅是melt不超过对照品的8°？ 谢谢各位专家，我是DSC新手，有点看不懂这个。
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