Gb T 1097 2003 Translated English Of Chinese Standard Gbt 1097 2003 Gb T1097 2003 Gbt1097 2003

This Standard specifies the square and rectangular keys with width of b=8mm~45mm.

This standard specifies the requirements of the basic dimensions for the general purpose metric screw threads according to GB/T 192-2003 and GB/T 193-2003.

This Standard specifies the abstract of methods, reagents, instruments and equipment, determination procedure, result expression and precision of determination of phosphorus content in coal. This Standard is applicable to determination of phosphorus content in lignite, bituminous coal, anthracite and coking coal.

This Standard specifies the method abstract, reagents and materials, instrument and apparatus, test procedures, calculation of results and method precision for the determination of vanadium in coal. This Standard is applicable to lignite, bituminous coal and anthracite.

This Standard stipulates the determination methods for the thickness reduction value and the hardness reduction value of flexible cellular materials that are used in interior decoration. This test method provides/ evaluates the means for the functional performance of the latex-type and polymeric acid-type flexible cellular materials for bearing decoration. The measured thickness reduction value and hardness reduction value are related to the possible loss in use; but they are not necessarily the same.

This Part specifies the principle, apparatus, specimen preparation, test procedures and calculation method for the determination of the coefficient of thermal expansion of graphite electrodes.

This Standard specifies the inspection methods for the colour, appearance, softening point, acid value, unsaponifiable matter, ethanol insoluble matter, and ash of rosin. This Standard is applicable to the inspection of rosin.

This Part of GB/T 2546 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of polypropylene (PP) moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given here. This Part also specifies the methods and conditions for specimen preparation and properties determination. This Part lists the properties and test methods which are suitable and necessary to characterize PP moulding and extrusion materials.