1.1 视觉表面制备指南和标准由一系列彩色印刷品组成，可作为单独的出版物获得。在本实践中描述了五组不同的照片，指定为方法A（ISO/瑞典标准 ）和方法B至E（SSPC指南和参考照片 ).这些方法在初始表面的描述、清洁条件的定义和描述以及包括的清洁方法的数量方面有所不同。由于这些差异，说明符应该说明使用哪个指南。 1.2 彩色视觉表面处理指南代表热轧碳钢在表面处理之前和之后的不同条件。在清洁之前，有四个生锈等级，从A到D，涵盖从完整的轧机氧化皮到100%生锈和有坑的钢的范围。然后，标准描述了在通过一种或多种方法(例如，干式喷砂清洁)进行各种彻底程度的清洁之后的初始状态的外观。此外，方法B包括三种包含不同程度劣化的涂漆条件。指南 描述了不同程度的干式喷砂清洗后的这些条件。方法C包括四种生锈等级和三种包含不同程度劣化的涂漆条件。指南 描述了不同程度的手动和电动工具清洁后的这些情况。方法D包括两种生锈等级和四种包含不同程度劣化的涂漆条件。指南 描述了不同程度的水喷射后的这些条件，有三个级别的闪锈。方法E包括两种锈蚀等级。指南 描述了不同程度的湿式喷砂清洗后的这些情况，具有三个级别的闪锈。 1.3 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》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 4.1 不同程度的干式和湿式喷砂清洁、手动和电动工具清洁以及水喷射的外观受到被清洁钢的初始锈蚀等级和/或现有钢上涂层的类型和状况的影响。标准和指南有助于直观地判断和评估清洁前的生锈和/或油漆变质程度以及喷漆前钢表面的清洁程度。4.2 由于世界各地使用视觉标准和指南的实践以及所采用的表面处理方法的差异，已经发展了五种方法。在欧洲，目视标准（方法A）被用作评估清洁程度的主要手段。在美国，SSPC书面定义优先，视觉指南和参考照片作为补充。方法B、C和D的目视指南和参考照片符合SSPC书面定义。方法E有书面定义，但是，方法E的视觉指南不包含对应于每个表面清洁度定义的完整图片集。

1.1 The visual surface preparation guides and standards consist of a series of color prints available as separate publications. Five different sets of photographs are described in this practice, designated as Method A (ISO/Swedish Standard ) and Methods B through E (SSPC Guides and Reference Photographs ). The methods differ in the depiction of the initial surface, in the definition and depiction of the cleaning conditions, and in the number of cleaning methods included. Because of these differences, the specifier should state which guide to use. 1.2 The colored visual surface preparation guides represent different conditions of hot-rolled carbon steel before and after surface preparation. Prior to cleaning, there are four rust grades, A to D, that cover the range from intact mill scale to 100 % rusted and pitted steel. The standards then depict the appearance of the initial conditions after cleaning by one or more methods (for example, dry abrasive blast cleaning) to various degrees of thoroughness. In addition, Method B includes three painted conditions that contain various degrees of deterioration. The Guide depicts these conditions after various degrees of dry abrasive blast cleaning. Method C includes four rust grades and three painted conditions that contain various degrees of deterioration. The Guide depicts these conditions after various degrees of hand and power tool cleaning. Method D includes two rust grades and four painted conditions that contain various degrees of deterioration. The Guide depicts these conditions after various degrees of water jetting, with three levels of flash rusting. Method E includes two rust grades. The Guide depicts these conditions after various degrees of wet abrasive blast cleaning, with three levels of flash rusting. 1.3 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 ====== 4.1 The appearance of the various degrees of dry and wet abrasive blast cleaning, hand and power tool cleaning, and water jetting are influenced by the initial rust grades of the steel being cleaned and/or the type and condition of the coating on the existing steel. The standards and guides aid visually in judging and evaluating the degree of rusting and/or paint deterioration before cleaning and the degree of cleaning of steel surfaces prior to painting. 4.2 Five methods have evolved because of differences in the practice of using visual standards and guides throughout the world, and the method of surface preparation employed. In Europe, the visual standards (Method A) are used as the primary means of assessing the degree of cleaning. In the U.S., the SSPC written definitions take precedence with the visual guides and reference photographs used as a supplement. The visual guides and reference photographs of Methods B, C, and D conform to the SSPC written definitions. There are written definitions for Method E, however, the visual guide for Method E does not contain a complete set of pictorials corresponding to each surface cleanliness definition.