ASTM C1409-12(R2018) pdf free download

ASTM C1409-12(R2018) pdf free download.Standard Guide for Measuring and Estimating Quantities of Insulated Piping and Components
1. Scope
1.1 This guide defines the components of an insulated piping system to be measured or counted to determine quan- tities 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 com- ponent (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.1.3 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards: C168 Terminology Relating to Thermal Insulation
3. Terminology
3.1 Definitions—For definitions of terms used in this guide, see Terminology C168.
4. Summary of Guide
4.1 This guide lists examples of components of piping systems which effect insulation cost. From this list, compo- nents to be counted are selected by the involved parties.
5. Significance and Use
5.1 This guide establishes procedures to help parties in- volved in unit price piping insulation contracts reach agree- ment as to what components will be counted for pricing purposes.
6. Procedure
6.1 For a unit price-type contract, establish unit prices for straight run piping. These unit prices should include pipe size, type of insulation system, insulation thickness, single or multilayer insulation, and type of weatherproofing or jacketing such as shown in the example in Table 1. 6.2 Determine the quantity of straight run pipe insulation by straight pipe measurement from centerline to centerline and include lengths of all in-line components. This method is defined as “measured through” (see Fig. X3.1). 6.3 Count the quantities of piping components. The piping components (fittings) to be counted may be modified by those listed in Table 2. The components should be categorized by pipe size, type of insulation system, insulation thickness, and pressure rating, if necessary. Table 2 may be used as a checklist to assist in the categorization. 6.4 The method of pricing (unit price per component or fitting factors) for each category will be determined by the terms of a request for quotation or commercial contract. However, users of this guide must be aware that selection of elements to be counted, categories, and method of measuring pipe, have a direct bearing on the final total price. Knowledge of this fact is critical to the selection of the most qualified installer. 6.5 For a unit price contract, each component shall have its own table categorized by pipe size, type of insulation system, insulation thickness, and pressure rating, if necessary.
7. Piping Components
7.1 Table 2 lists a sample of components which affect the cost of insulation on a piping system. The “Note” column is used when additional information is required to explain a component as it generally applies to the insulation industry. 7.2 Table 2 may be used as a checklist when choosing which components will be counted and when determining difficulty factors. However, for inclusion in contract or request for quote documents, a summary similar to Appendix X1 may be used.