ASTM E1269比热容DSC蓝宝石法测试

ASTM E1269

用差示扫描热量测定仪测定比热容量的标准试验方法

适用范围：

This test method covers the determination of specific heat capacity by differential scanning calorimetry.1.2 This test method is generally applicable to thermally stable solids and liquids.1.3 The normal operating range of the test is from 100 to 600C. The temperature range can be extended, depending upon the instrumentation and specimen holders used.1.4 The values stated in SI units are to be regarded as the standard.1.5 Computer or electronic-based instrumentation, techniques, or data treatment equivalent to this test method may be used.Note 1Users of this test method are expressly advised that all such instruments or techniques may not be equivalent. It is the responsibility of the user of this test method to determine equivalency prior to use.1.6 This method is similar to ISO 11357-4, but contains additional methodology not found in that method. Additionally, ISO 11357-4 contains practices not found in this standard. This method is similar to Japanese Industrial Standard K 712。

样品质量：10~20mg；

仪器：耐驰DSC 200F3

升降温速率：10℃/min；

适用仪器：差示扫描量热仪（DSC）；

测试温度范围：根据客户要的测试温度点设置，从低于设置温度点20℃至高于设置温度点20℃；

测试过程：起始温度恒温5min后升温至终止温度，终止温度恒温5min，分别对样品、空坩埚、蓝宝石标样进行测试；

适用样品：不限。

注意：样品质量差不多、起始温度与终止温度一样、升降温速率一样、同种形式差示扫描量热仪、校准期有效。