本文件规定了用于计算、显示或记录体型特异性剂量估算值、纵向位置z处的体型特异性剂量估算值、水等效直径以及纵向位置z处的水等效直径的标准化方法和要求，并规定了一种通过符合本文件规定的两个圆柱体水模体以及一个或多个仿人体模体的CT扫描数据确定纵向位置z处的参考水等效直径的方法，对于制造商实现的计算纵向位置z处的实现水等效直径的方法，通过使用本文件规定的测量对象和方法进行测试，并与纵向位置z处的参考水等效直径对比进行确认。
本文件适用于能够根据GB 9706.244的要求显示和报告CTDI vol的CT扫描装置，以及辐射剂量指数监测软件(RDIMS)，用于其计算、显示和记录体型特异性剂量估算值(SSDE)及其关联参数。
注： 这种标准化对确保所报告的SSDE值之间的可比较性非常重要。

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本标准规定了林业地图制图中使用的各种地物、地貌要素符号和注记的等级、规格和颜色，以及基本使用方法。本标准适用于林业工作中地形图的测绘、林业调查、规划设计，以及地理底图的编绘。

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4.1 The structural carbohydrate content is used in conjunction with other assays to determine the total composition of biomass samples.1.1 This test method describes the determination of structural carbohydrates present in a biomass sample, expressed as the percent mass of an oven-dried sample basis of each anhydrosugar.1.2 Sample materials suitable for this procedure include hard and softwoods, herbaceous materials, such as sericea and switchgrass, agricultural residues, such as corn stover, wheat straw, and bagasse, wastepaper, such as boxboard, office waste, and newsprint, acid or alkaline-pretreated biomass, washed free of any residual acid or alkali, and the solid fraction of fermentation residues.1.3 The options for the types of samples to be analyzed in this procedure are:1.3.1 Prepared Biomass Samples: 1.3.1.1 Air Dried Material—Results are reported as the percent by mass, based on the oven-dried mass of the air-dried sample.1.3.1.2 45 °C Dried Material—Results are reported as the percent by mass, based on the oven-dried mass of the 45 °C dried sample.1.3.1.3 Freeze Dried Material—Results are reported as the percent by mass, based on the oven-dried mass of the freeze dried sample.1.3.2 Extractives-Free Sample—Results are reported as the percent by mass, based on the oven-dried mass of the extracted sample.1.4 This standard method is generally not suitable for samples that contain soluble, nonstructural carbohydrates unless they are removed prior to analysis.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. See Section 8 for specific hazards statements.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.

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