In the tree view, click Piping > Piping Specification > Piping Materials Classes.
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In the Piping Materials Classes branch, open a specification and click Piping Materials Class Rules > Exterior Coating and Surface Treatment Rule.
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Click the Insert Row Command
to insert a blank row in the grid view.
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In the Nominal Piping Diameter From column, type the nominal pipe diameter (NPD) that specifies the start of the treatment range.
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In the Nominal Piping Diameter To column, type the NPD that specifies the end of the treatment range.
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In the Nominal Piping Diameter Units column, type the units for the NPDs. For example, type mm or in.
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In the Environmental Zone column, select where the piping is located.
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In the Outside Surface Treatment Requirement column, select the exterior surface treatment requirement that you want to use for the defined NPD range, if needed.
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In the Outside Surface Treatment column, select the exterior surface treatment that you want to use for the defined NPD range, if needed.
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In the Coating Requirement column, select the coating requirement that you want to use for the defined NPD range, if needed.
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In the Coating Type column, select the coating type that you want to use for the defined NPD range, if needed.
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In the Auxiliary Treatment Requirement column, select the auxiliary treatment requirement, if needed.
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In the Auxiliary Treatment column, select the auxiliary treatment, if needed.
The Outside Surface Treatment sheet in the Piping Materials Class.xls workbook corresponds to the Exterior Coating and Surface Treatment Rule node in the Catalog task. See Piping Reference Data.