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现行 ASTM D3827-92(2020)
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Standard Test Method for Estimation of Solubility of Gases in Petroleum and Other Organic Liquids 石油和其他有机液体中气体溶解度的标准测试方法
发布日期: 2020-11-01
1.1 本试验方法涵盖了在0到488K的温度下估算几种常见气体在石油和合成润滑剂、燃料和溶剂中的平衡溶解度的程序。 1.2 该测试方法仅限于极性和氢键不足以导致严重偏离规则性的系统。特别排除了HCl、NH等气体 3. ,等等 2. 和羟基液体,如醇、二醇和水。CO溶解度的估算 2. 在非碳氢化合物中也被明确排除在外。 1.3 高芳香油,如二苯氧基苯醚,在363K以上违反了规定的精度,此时氮溶解度的估计值为43 % 高于观察值。 1.4 在本试验方法中,优先考虑润滑剂,因为根据润滑剂数据调整了某些经验因素。馏出燃料的估计值是根据另一组经验因素的润滑剂估计值得出的,因此不太准确。卤化溶剂的估计值被视为碳氢化合物,并且是三者中最不准确的。 1.5 以国际单位制表示的数值应视为标准。括号中的值仅供参考。 1.6 本标准并非旨在解决与其使用相关的所有安全问题(如有)。本标准的用户有责任在使用前制定适当的安全、健康和环境实践,并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒(TBT)委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 气体溶解度的知识在气体压缩机的润滑中极为重要。它被认为是边界润滑的一个重要因素,在边界润滑中,溶解气体的突然释放可能会导致气蚀,甚至液膜崩溃。在液压油和密封油中,高压下溶解的气体在释放压力时会导致过度起泡。 在航空用油和燃料中,起飞高度和巡航高度之间的压力差可能导致储存容器内起泡,并中断流向泵的流量。
1.1 This test method covers a procedure for estimating the equilibrium solubility of several common gases in petroleum and synthetic lubricants, fuels, and solvents, at temperatures between 0 and 488 K. 1.2 This test method is limited to systems in which polarity and hydrogen bonding are not strong enough to cause serious deviations from regularity. Specifically excluded are such gases as HCl, NH 3 , and SO 2 , and hydroxy liquids such as alcohols, glycols, and water. Estimating the solubility of CO 2 in nonhydrocarbons is also specifically excluded. 1.3 Highly aromatic oils such as diphenoxy phenylene ethers violate the stated accuracy above 363 K, at which point the estimate for nitrogen solubility is 43 % higher than the observation. 1.4 Lubricants are given preference in this test method to the extent that certain empirical factors were adjusted to the lubricant data. Estimates for distillate fuels are made from the lubricant estimates by a further set of empirical factors, and are less accurate. Estimates for halogenated solvents are made as if they were hydrocarbons, and are the least accurate of the three. 1.5 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Knowledge of gas solubility is of extreme importance in the lubrication of gas compressors. It is believed to be a substantial factor in boundary lubrication, where the sudden release of dissolved gas may cause cavitation erosion, or even collapse of the fluid film. In hydraulic and seal oils, gas dissolved at high pressure can cause excessive foaming on release of the pressure. In aviation oils and fuels, the difference in pressure between take-off and cruise altitude can cause foaming in storage vessels and interrupt flow to pumps.
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归口单位: D27.07
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