{ "item_title" : "Gas Flowmeter Calibrations with the 26 m3 PVTt Standard", "item_author" : [" Joh D. Wright", "U. S. Department of Commerce- Nist", "Aaron N. Johnson "], "item_description" : "This document discusses the procedures for submitting a flow meter for calibration, gives the readily available pipe sizes and flanges suitable for flow meter calibration, documents the format of a standard NIST calibration report, and states the normal range of data collected for a calibration. In addition, this document describes the theory, principle of operation, and uncertainty of the 26 m3 PVTt primary flow standard covering the flow range from 200 L/min to 77000 L/min. Details concerning the two smaller PVTt flow standards can be found in the following reference.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/49/592/487/1495924874_b.jpg", "price_data" : { "retail_price" : "16.99", "online_price" : "16.99", "our_price" : "16.99", "club_price" : "16.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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