NBS Special Publication, Issue 65U.S. Government Printing Office, 1925 - Weights and measures |
Contents
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Common terms and phrases
Agri Air Service alloy Aluminum American Society asphalt Assn Automotive Engineers bituminous boiler brass bronze Bull cable cars cement Chicago Commerce Dept concrete copper Corps of Engineers cotton Douglas fir Erie R. R. Food Insp grades and sizes Grading Rules Handbook Hardwood Lumber Hartford R. R. Haven & Hartford Highway Commission Highway Dept hose Indorse A. S. T. M. insulating Item Lehigh Valley Lighthouses linseed oil locomotives Manganese bronze Mechanical Dept metal Motive Power Dept Motor Transport Div Motors Corp Navy Dept Ordnance Dept paint Panama Canal Pennsylvania System Phosphor bronze pipe Purchasing Dept Q. M. Corps Q. M. Dept rods Rubber Sched sheet ship Signal Corps Simp Society for Testing Society of Automotive Southern Pacific Lines Spec Specifications Supply Committee Tentative Testing Materials Treas tubes U. S. Marine Corps undated War Dept Westinghouse wire yellow pine York City
Popular passages
Page 120 - This term shall be applied to the finely pulverized product resulting from the calcination of an argillaceous limestone at a temperature only sufficient to drive off the carbonic acid gas.
Page 192 - Forgings for main and side rods straps and piston rods, and all other forgings which are to be machined with milling cutters or complicated forming tools, or when there is an abrupt change in section.
Page 119 - These methods are intended to cover compression tests of concrete made in a laboratory where accurate control of quantities of materials and test conditions is possible. They are designed to apply primarily to hand-mixed concrete...
Page 298 - Regulations for the Transportation of Explosives and Other Dangerous Articles by Freight, and Specifications for Shipping Containers...
Page 79 - ... may influence results. No attempt has been made to cover methods of computation and analysis, as these questions may be considered independently at any time. Such sample data and computation sheets and cards have been incorporated, however, as were thought to be of assistance to the investigator in systematizing records. Purpose of i. Tests on small clear specimens of wood are made to afford: Tests' (a) Data for comparing the mechanical properties of various species.
Page 122 - Lime and soda ash are used together for softening water. (c) The lime serves as a chemical reagent in water treatment. The only useful constituent of the lime is the calcium oxide capable...
Page 122 - REVISED, 1925. 1. (a) In the treatment of water for public supplies, lime is used alone or with iron sulfate or aluminum sulfate to produce a precipitate which assists in the clarification of the water and in the removal of bacteria by filtration.
Page 173 - B. (b) The purposes for which the two grades are generally used are: Grade A, unannealed, covers only such special castings as may be approved by the purchaser. Grade A, annealed, covers such castings not covered by Grade A, unannealed. Grade B covers all castings for high stresses such as truck side frames, bolsters, couplers and coupler parts, locomotive frames and locomotive driving and trailer wheel centers. 2. Grade A castings shall be furnished annealed unless otherwise specified by the purchaser....
Page 111 - A mixture containing asphaltic material as a binder and graded mineral matter as an aggregate, or (2) pulverized native rock asphalt (to which asphaltic material may have been added) ; either of which when heated to a suitable temperature may be poured into place but which requires a trowel to form it into a compact mass.
Page 193 - The methods of analysis listed under "Analysis of Aluminum" contemplate the analysis of aluminum containing more than 98 per cent aluminum and containing only silicon, titanium, iron, copper, carbon and traces of manganese as impurities. Unless it is positively known that such elements as tin, antimony, zinc, lead, nickel, magnesium, sodium, nitrogen or oxygen (as aluminum oxide) are absent, the methods listed under the "Analysis of Light Aluminum Alloys