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现行 ASTM D4337-89(2017)
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Standard Test Methods for Analysis of Linear Detergent Alkylates 线性洗涤剂烷基化物分析的标准测试方法
发布日期: 2017-01-01
1.1 这些测试方法包括适用于线性洗涤剂烷基化物的化学和物理测试,评估线性洗涤剂烷基化物在其预期用途适用性方面的特性。 注1: 线性洗涤剂烷基化物包括通过改变线性烷基链长度的不同过程制备的线性烷基苯。烷基化物被磺化为表面活性剂,最大的应用是在洗涤剂产品中。需要仔细控制线性洗涤剂烷基化特性; 在磺化过程中,磺酸盐的变化可能会导致理想或不理想的最终用途特性。 1.2 试验方法如下: 部分 气相色谱法测定成分 7 – 15 氯化物 16 – 27 颜色 28 – 30 折射率 31 – 33 比重 34 – 36 水 37 – 39 1.3 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和健康实践,并确定监管限制的适用性。 试剂和材料有材料安全数据表。使用前检查其危险性。 另请参见 注1 和截面 21 . ====意义和用途====== 3.1 这些测试方法适用于设置线性洗涤剂烷基化物的规范,以及在制造或在制造过程中使用这些烷基化物的质量控制。 3.2 气相色谱测试有助于识别由各种制造工艺生产的线性洗涤剂烷基化物,并确定线性洗涤剂烷基化物对特定最终用途的适用性。 为C-9至C-15线性洗涤剂烷基化物的分辨率优化了试验条件,较高或较低链长的存在很明显,但可能产生错误的结果。四氢萘结构尚未充分鉴定,无法测定四氢萘,小的未鉴定成分被报告为四氢萘和未鉴定成分。 3.3 一些线性洗涤剂烷基化物使用有机氯化物作为前体的制造工艺。该试验可用于确保烷基化物的氯化物含量不超过特定最终用途。 3.4 铂钴颜色测试有助于确定线性洗涤剂烷基化物的颜色不会影响最终用途产品的颜色。 3.5 折光率和比重测试可能有助于识别线性洗涤剂烷基化物和评估烷基化物中的总污染物。 3.6 水试验适用于确定线性洗涤剂烷基化物不包含对进一步加工有害的水量。
1.1 These test methods cover chemical and physical tests applicable to linear detergent alkylates, evaluating those properties which characterize linear detergent alkylates with respect to its suitability for desired uses. Note 1: Linear detergent alkylates comprises linear alkylbenzenes prepared by varying processes of varying linear alkyl chain length. The alkylate is sulfonated for surfactant use, the largest application being in detergent products. Careful control of linear detergent alkylate characteristics is desired; during sulfonation, variations of the sulfonate can occur that may result in either desirable or undesirable end-use properties. 1.2 The test methods appear as follows: Section Composition by Gas Chromatography 7 – 15 Chlorides 16 – 27 Color 28 – 30 Refractive Index 31 – 33 Specific Gravity 34 – 36 Water 37 – 39 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. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage. See also Note 1 and Section 21 . ====== Significance And Use ====== 3.1 These test methods are suitable for setting specifications on linear detergent alkylates and for quality control where these alkylates are manufactured or are used in a manufacturing process. 3.2 The gas chromatography test is useful in identifying linear detergent alkylates produced by the various manufacturing processes and for determining the applicability of a linear detergent alkylate to a particular end use. Test conditions have been optimized for resolution of the C-9 to C-15 linear detergent alkylates and the presence of higher or lower chain lengths will be readily apparent but may produce erroneous results. The tetralin structures have not been sufficiently identified to allow determination of tetralins, and small unidentified components are reported as tetralins and unidentifieds. 3.3 Some linear detergent alkylates use a manufacturing process with an organic chloride as a precursor. This test may be used to ensure that the chloride content of the alkylate is not excessive for a particular end use. 3.4 The platinum-cobalt color test is useful in determining that the color of the linear detergent alkylate will not contribute to the color of the end use product. 3.5 The refractive index and specific gravity tests are possible aids in the identification of linear detergent alkylates and in evaluating alkylates for gross contaminants. 3.6 The water test is suitable for determining that linear detergent alkylates do not contain amounts of water deleterious to further processing.
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归口单位: D12.12
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