Rechercher

The method is applicable to oats, durum wheat, wheat, maize, barley, rice, rye and sorghum. It consists in preparing of several test samples, or a range of test samples, with different moisture contents, under specified conditions, determining of their moisture contents by a reference method and measuring with the meter to be checked. An annex specifies the maximum permitted errors.

The method is applicable to the determination of tin contents between 0.005 and 0.5 % (m/m) in all types of copper and copper alloys listed in International Standards. A method applicable to the determination of tin contents below 0.005 % (m/m) is in preparation. ISO 4751 specifies principle, reagents, apparatus, procedure, preparation of calibration graph, expression of results and test report.

Specifies requirements for kernels, obtaained from fruits of Prunus armeniaca Linnaeus, shelled for human consumption. It defines relevant terms, tabulates requirements for grades of kernels, shows special requirements, further instructions for sampling, packing and marking. An annex A provides the determination of damaged kernels etc. An annex B describes the determination of moisture content…

Specifies a method using test solutions to be prepared by fusion of a test portion with sodium carbonate for the determination of the total silica content, and by dissolution of the alkalisoluble part of a test portion in sodium hydroxide solution for the determination of the alkali-soluble silica content. This results in the formation of molybdosilicate, followed by spectrometric measurement at…

The method is applicable to products having a titanium content of 0,01 to 0,5 % (m/m). ISO 7723 should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sample, procedure and expression of results.