1.1 本试验方法描述了通过透射光检查时，对透明、透明液体的外观进行视觉评估，以确定其是否透明，以及是否存在悬浮物、游离水（或油）和颗粒等不良成分（污染）。此方法不包括需要仪器的测量。该试验方法最初设计用于船舶的乙二醇和甲醇洗壁，但可能适用于其他透明液体。 1.1.1 该测试方法可用于储存温度下的现场测试或室温下的实验室测试。 1.1.2 该试验方法提供了透明液体的视觉外观描述。 这只是一个定性评估。 1.2 查阅当前适当的安全数据表（SDS），了解有关毒性、急救程序和安全预防措施的详细信息。 1.3 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 关于本试验方法中使用的所有材料，请参阅现行OSHA法规、供应商的安全数据表和当地法规 。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 这种方法提供了透明液体的外观。许多液体有机产品具有产品规格，要求它们是透明和明亮的，并且不含可见的颗粒物质和除主要液体以外的液相。这些液态有机产品的生产商需要一种测试方法来确认其产品的质量符合产品外观规范。 外观是乙烯、丙二醇和多元醇产品的制造和销售规范测试，也是船舶甲醇洗壁的装载规范测试。该试验方法最初设计用于船舶的乙二醇和甲醇洗壁，但可能适用于其他清澈透明的液体。对其他透明透明液体使用该测试方法的个人应确保该方法足够使用。 5.2 在液体产品取样期间和取样之后，有许多因素可能会影响外观。这些因素可能包括将液体转移到不同的样品容器中、被样品容器污染或被环境大气污染。 需要遵循取样和评估程序，以避免不良影响，并确保样品的外观是所制造液体的典型外观。

1.1 This test method describes the visual assessment of the appearance of clear, transparent liquids for clarity and the presence of undesirable components (contamination) such as suspended matter, free water (or oil) and particulates when examined by transmitted light. Measurements requiring instrumentation are not included in this method. This test method was originally designed for application to glycols and methanol wall washes of marine vessels but may be applicable to other clear transparent liquids. 1.1.1 This test method can be used as a field test at storage temperatures or as a laboratory test at room temperatures. 1.1.2 This test method provides a visual appearance description of transparent liquids. It is a qualitative assessment only. 1.2 Review the current appropriate Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. Consult current OSHA regulations, suppliers’ Safety Data Sheets, and local regulations for all materials used in this test method . 1.5 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 This method provides appearance of clear, transparent liquids. Many liquid organic products have a product specification requiring them to be clear and bright and free of visible particulate matter and of liquid phases other than the main liquid. Producers of these liquid organic products need a test method to confirm the quality of their products meets product specifications for appearance. Appearance is a manufacturing and sales specification test for ethylene and propylene glycol and polyol products and a loading specification test for methanol wall washes of marine vessels. This test method was originally designed for application to glycols and methanol wall washes of marine vessels, but may be applicable to other clear, transparent liquids. Individuals using this test method for other clear transparent liquids should assure themselves that the method is sufficient for use. 5.2 There are many factors that could affect the appearance during and after sampling of a liquid product. These factors may include transferring of the liquid into a different sample container, contamination by the sample container or contamination by ambient atmosphere. Sampling and evaluation procedures need to be followed to avoid undesirable effects and assure the appearance of the sample is typical for the liquid as manufactured.