JJG672-2001-氧弹热量计检定规程.pdf

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1、氧弹热量计检定规程JJG672-2001.厂卜今褚卜宁卜卜六飞氧弹热t计检定规程·李，吞寸JJG672-2001VerificationRegulationof李，丫寸代替JJG672-1990丫TheBombCalorimeter石iiC673-1990兮‘火今卜一卜叱.卜二卜今弓本规程经国家质量监督检验检疫总局于2001年07月06日批准，并自2001年10月。日起施行。归口单位:全国物理化学计量技术委员会起草单位:国家标准物质研究中心本规程委托全国物理化学计量技术委员会负责解释本规程主要起草人:

2、俞秀慧(国家标准物质研究中心)参加起草人:孟凡敏(国家标准物质研究中心)1508目录1范围··················，··········································································⋯⋯15102概述····························································································⋯⋯15103计量性能要求·

3、·············································..·········..................··.....⋯⋯15103.1搅拌热15103.2热容量重复性·······················································⋯⋯，...........····...⋯⋯15103.3热值误差15103.4平衡点稳定性················，····························

4、···················，················⋯⋯15104通用技术要求·············································································.·..·.⋯⋯15104.1热量计外观要求·································。·······················⋯⋯，.，，.，.........⋯⋯15104.2内、外筒外观要求··············

5、··········································..⋯⋯，，.，，.，⋯⋯，二15104.3氧弹要求15104.4测温系统要求··············，································································⋯⋯15115计量器具控制··············································，················⋯⋯，..⋯⋯，.⋯⋯15115.

6、1检定条件15115.2检定项目和检定方法·········································...........................⋯⋯，15115.3检定结果的处理································。··················⋯⋯，二，................⋯⋯15145.4检定周期1514附录A氧弹热量计检定记录·············.................................

7、................⋯⋯巧14附录13等温型热量计测量记录表···········，·················，·····························⋯⋯1515附录C绝热型热量计测量记录表·········......··⋯⋯，..⋯⋯，.........⋯⋯，.⋯，.⋯⋯1517509氧弹热t计检定规程范围本规程适用于等温型、绝热型、自动氧弹热量计(热容量范围为1500-15000J/K)的首次检定、后续检定和使用中检验概迷氧弹热量计是用于测定固体、液体燃料

8、热值的计量仪器。基本原理是:一定量的燃烧热标准物质苯甲酸在热量计的氧弹内燃烧，放出的热量使整个量热体系(包括内筒、内筒中的水或其他介质、氧弹、搅拌器、温度计等)由初态温度TA升到末态温度TB，然后将一定量的被测物质再与上述相同条件进行燃烧测定。由于使用的热量计相同，而且量热体系温度变化又一致，因而可以得到被测物质的热值。氧弹热量计从量热原理可分为等温型氧弹热量计(简称等温热量计)和绝热型氧弹热量计(简称绝热热量计)。量热体系被充满水(或其他介质)的双层夹