. Tentative revised boiler safety orders. on and one bend test shall bemade from each melt. 5 If any test specimen shows defective machining or developsflaws, it may be discarded; in which case the manufacturer and thepurchaser or his representative shall agree upon the selection of an-other specimen in its stead. NEW INSTALLATIONS, PART I, SECTION I. POWER BOILERS 25 c If the percentage of elongation of any tension test specimen isless than that specified in Par. 85, and any part of the fracture ismore than % in. from the center of the gaged length, as indicated byscribe scratches marked on t
. Tentative revised boiler safety orders. on and one bend test shall bemade from each melt. 5 If any test specimen shows defective machining or developsflaws, it may be discarded; in which case the manufacturer and thepurchaser or his representative shall agree upon the selection of an-other specimen in its stead. NEW INSTALLATIONS, PART I, SECTION I. POWER BOILERS 25 c If the percentage of elongation of any tension test specimen isless than that specified in Par. 85, and any part of the fracture ismore than % in. from the center of the gaged length, as indicated byscribe scratches marked on the specimen before testing, a retest shallbe allowed. IV WOEKMANSHIP AND FiNISH 90 WorkmansMp. The castings shall substantially conform tothe sizes and shapes of the patterns, and shall be made in a workman-like manner. 91 Finish, a The castings shall be free from injurious ) Minor defects which do not impair the strength of the castings may, with the approval of the purchaser or his representative, be >K-^>tt. Fig. 4 Standard Form of Test Specimen Eequired for all Tension Tests OF Steel Casting Material welded by an approved process. The defects shall first be cleaned outto solid metal; and after welding, the castings shall be annealed, ifspecified by the purchaser or his representative. c The castings offered for inspection shall not be painted orcovered with any substance that will hide defects, nor rusted to suchan extent as to hide defects. Y IXSPECTION AND EeJECTION 92 Inspection. The inspector representing the purchaser shallhave free entry, at all times while work on the contract of the pur-chaser is being performed, to all parts of the manufacturers workswhich concern the manufacture of the castings ordered. The manu-facturer shall afford the inspector, free of cost, all reasonable facilitiesto satisfy him that the castings are being furnished in accordance with 26 REPORT OF BOILER CODE COMMITTEE, these specifications. All tests (except check
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsteambo, bookyear1919
