濁點(diǎn)測定儀校準(zhǔn)方法及測量不確定度評定
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【摘要】本文主要介紹了石油產(chǎn)品濁點(diǎn)測定儀的組成和測量原理,JJF 1869—2020《石油產(chǎn)品傾點(diǎn)濁點(diǎn)測定儀校準(zhǔn)規(guī)范》中最大允許誤差和示值重復(fù)性技術(shù)指標(biāo)范圍的確定過程,以及濁點(diǎn)測定儀的校準(zhǔn)方法,并評定儀器的示值誤差不確定度,為石油產(chǎn)品濁點(diǎn)測定儀的校準(zhǔn)以及日常使用提供更可靠的依據(jù)。
【關(guān)鍵詞】濁點(diǎn)儀;計(jì)量特性;校準(zhǔn)方法;不確定度
【DOI編碼】10.3969/j.issn.1674-4977.2023.04.015
Calibration Method and Uncertainty Evaluation of Cloud Point Tester
HONG Tao, LIU Guang
(Liaoning Institute of Measurement, Shenyang 110004, China)
Abstract: This paper introduces the composition and principle of cloud point tester, determining process of maximum allowable error and repeatability of indication value specification range of JJF 1869—2020 Calibration Specification for Pour Point and Cloud Point Testers of Petroleun Products, and the calibration method for cloud point tester then evaluate indication error uncertainty of the instrument, provides more reliable basis for the calibration and daily application of cloud point testers of petroleun products
Key words: cloud point tester; metrological characteristics; calibration method; uncertainty
0引言
濁點(diǎn)是在規(guī)定的條件下,清澈透明的液體石油產(chǎn)品、生物柴油、生物柴油調(diào)和燃料等,由于蠟晶體的出現(xiàn)而首次呈霧狀或渾濁時(shí)的最高溫度。(剩余3641字)