ASME PTC 28

Abstract

OBJECT AND SCOPE <br> The object of the test shall be to determine various physical and chemical properties of dust. This Code provides procedures for determining these properties and defines the terminology to be used in stating these properties. <br> Modifications of the test procedures contained in this Code or the determination of special data outside the scope of this Code shall be made only after written agreement of all parties to the test regarding details of the test, methods of computation, and terminology to be used in reporting results - all of which shall be completely described in the test report. <br> This Code excludes the methods to be employed in obtaining the samples of dust to be tested. It shall be assumed that the samples of gas-borne dust taken from a duct shall be taken in accordance with the Test Code for Determining Dust Concentration in a Gas Stream (PTC 27-1957). It is recommended that samples should not be obtained from a large bulk of material in a hopper, silo, or from a similar location, If it is necessary to take samples from such a location due to the design of the particular unit being tested, the samples shall be taken by such procedures as will insure their being representative of the whole. In either case, the methods to be employed shall be defined in awritten agreement between all parties to the test. <br> Should the specific directions given in this Code for any particular measurement differ from those given in other ASME Power Test Codps for similar measurements, the instructions of this Code shalt prevail unless otherwise agreed by the parties to the test.