BS ISO 3087:2020 pdf free.Iron ores一Determination of the moisture content of a lot.
BS ISO 3087 The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 3082, Iron ores一Sampling and sample preparation procedures ISO 3085, Iron ores一Experimental methods for checking the precision of sampling, sample preparation and measurement ISO 3086, Iron ores一Experimental methods for checking the bias of sampling ISO 11323, Iron ore and direct reduced iron一Vocabulary.5.1 Drying pan, with a smooth surface, free from contamination and capable of accommodating the
specified quantity of a test portion in a layer of nominal thickness not greater than 31,5 mm. 5.2 Drying oven, equipped with a temperature indicator and control apparatus capable of regulating the temperature at any point in the oven at 105 °C士5 °C and so designed as to maintain this temperature with a current of air to ensure efficient drying but without any loss of sample, and fitted with a fan that allows for both the circulation and change of air.5.3 Weighing device, with readability equivalent to at least 0,01 % of the Table 1 minimum test
portion mass. The weighing device should be protected from the influence of heat.The capacity of the weighing device shall be enough for the combined mass of the drying pan and the
initial mass of the test portion.Test samples that have been taken and prepared in accordance with ISO 3082 shall be used. The mass of a test portion, in relation to its nominal top size, is specified in Table 1, in accordance with ISO 3082:2017, 10.6. The nominal top size of the moisture test sample shall be 31,5 mm or less. Samples with a nominal top size greater than 31,5 mm shall be crushed prior to extraction of test samples for moisture determination. When it is difficult to conduct crushing and dividing owing to a sample being adhesive or excessively wet, the sample may be partially dried in accordance with the procedure in Annex A.BS ISO 3087 pdf download.