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ASTM D3875-2008 微咸水、海水和盐水中碱性的试验方法

ASTM D3875-2008 微咸水、海水和盐水中碱性的试验方法

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资料描述

【英文标准名称】: Standard Test Method for Alkalinity in Brackish Water, Seawater, and Brines
【原文标准名称】: 微咸水、海水和盐水中碱性的试验方法
【标准号】: ASTM D3875-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: D19.05
【标准类型】: (Test Method)
【标准水平】: ()
【中文主题词】:
【英文主题词】: alkalinity; brackish; brine; seawater; Acidity, alkalinity, pH--water; Brackish water/brines; Seawater (natural/synthetic)
【摘要】: Alkalinity as carbonate and bicarbonate of saline water is very important in chemical waterflooding or tertiary recovery processes for recovering petroleum. Alkaline waters offer better wetting to the formation rock and improve oil release. As an additional benefit, ions that provide alkalinity adsorb on rock surfaces occupying adsorption sites and decrease the loss of recovery chemical by adsorption. Determination of alkalinity in waters used in tertiary recovery processes is therefore very important. An alkalinity value is necessary in the calculation of carbonate scaling tendencies of saline waters. It is also necessary to determine the alkalinity if the ionic balance of a water analysis is to be used as a check of the reliability of the analysis.1.1 This test method covers the determination of alkalinity in brackish water, seawater, and brines. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.
【中国标准分类号】: Z17
【国际标准分类号】: 13_060_50
【页数】: 4P.;A4
【正文语种】: 英语

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