测量和评定绝缘管及部件数量的指南

ASTM C1409-2008

测量和评定绝缘管及部件数量的指南

Standard Guide for Measuring and Estimating Quantities of Insulated Piping and Components

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适用范围：This guide establishes procedures to help parties involved in unit price piping insulation contracts reach agreement as to what components will be counted for pricing purposes.1.1 This guide defines the components of an insulated piping system to be measured or counted to determine quantities and pricing for unit price contracts or extra work. 1.2 Pricing may be done through unit pricing for each item by pipe size, type of insulation system, insulation thickness, double or multilayer insulation, type of weatherproofing or jacketing, and pressure rating (if necessary) or through component (fitting) factor or multipliers. 1.2.1 Component (fitting) factors or multipliers, which are multipliers times the straight length of piping as shown in Table 1, determine relative prices for each component not within the scope of this guide. These factors or multipliers are to be determined by the insulating contractor relative to the given situation and insulation system specification. 1.2.2 It is suggested that only one type of pricing be used on a project. 1.2.3 The values stated in inch-pound units are to be regarded as the standard.

实施日期： 2008-03-01

中标分类号： G33 - 化工 - 塑料型材

ICS分类号： 23.040.01 - 流体系统和通用部件 - 管道部件和管道综合

标准组织： ASTM - 美国材料与试验协会标准

全文来源： WF

英文关键词： extra work factors fittings insulated pipe measure quantities piping components unit prices Double layer insulation Insulated pipe/equipment systems Measurement processes/systems Piping systems Valves

语种：汉语

页数： 8

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测量和评定绝缘管及部件数量的指南

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