1.1 本指南提供了仅使用视觉线索估算水上石油厚度的信息和标准。 1.2 本指南适用于水面上的油，不适用于陆地或其他表面上的油。 1.3 本指南通常适用于各种海洋或淡水条件下的所有类型的原油和大多数石油产品。 1.4 使用本指南获得的厚度值最好是估计值，因为水上石油的外观可能受到许多因素的影响，包括石油类型、海况、能见度条件、视角和天气。 1.5 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 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====== 3.1 浮油厚度的估计有助于: 3.1.1 估计一个地区的石油量（体积）， 3.1.2 将漏油对策定位在最佳位置， 3.1.3 评估泄漏情况， 3.1.4 出于法律或起诉目的估算容量，例如非法排放，以及 3.1.5 制定溢出控制策略。 3.2 本指南仅适用于薄光泽（光泽和彩虹光泽高达约3μm）。稠油和油包水乳液在厚度方面没有明显差异 ( 1. , 2. ) . 3.

1.1 This guide provides information and criteria for estimating the thickness of oil on water using only visual clues. 1.2 This guide applies to oil-on-water and does not pertain to oil on land or other surfaces. 1.3 This guide is generally applicable for all types of crude oils and most petroleum products, under a variety of marine or fresh water conditions. 1.4 The thickness values obtained using this guide are at best estimates because the appearance of oil on water may be affected by a number of factors including oil type, sea state, visibility conditions, view angle, and weather. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 ====== 3.1 Estimations of oil slick thickness are useful for: 3.1.1 Estimating amount (volume) of oil in an area, 3.1.2 Positioning oil spill countermeasures in optimal locations, 3.1.3 Evaluating a spill situation, 3.1.4 Estimating volume for legal or prosecution purposes, such as for an illegal discharge, and 3.1.5 Developing spill control strategies. 3.2 This guide is only applicable to thin sheens (sheen and rainbow sheen up to about 3 μm). Thick oil and water-in-oil emulsions do not show visual differences with respect to thickness ( 1 , 2 ) . 3