The grain stability of calcined petroleum coke determines the resistance to breakdown of +4 mm particles used in the manufacture of carbon anodes for use . Designation: D/DM − Standard Practice for. Collection and Preparation of Coke Samples for Laboratory Analysis1 This standard is issued under the. ASTM D Standard Practice for Collection and Preparation of Coke Samples for Laboratory Analysis.

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Are you sure you want to empty the cart? In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. The most common test used in viscosity determination of pyroligneous acid is the Engler-scale. The procedure can be facilitated by using a machine for the shaking. For charcoal and charcoal briquettes. Special apparatus can be purchased. By heating charcoal with exclusion of air oxygen volatile matter and gases are expelled.

After minutes, open the gas adjusting screw and the air control of the Bunsen burner to full capacity and continue heating until the small flame above the pinhole of the lid has ceased. Accurately weight one gramme of the powdered d3466 in a platinum preferable or porcelain crucible with a lid with the following dimensions: Historical Version s – view previous versions of standard.

But there are many which will be required only once a year or even less, particularly in a small plant. ASTM D usually modified ashm charcoal.


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The drum is rotated at 24 rpm for one hour total 1, rev. The difference between the initial weight represents the volatile content. However, they have great value for comparison between various raw materials since the behaviour of known materials can be compared with new type raw materials or the effect of changing carbonisation temperature can be studied in a comparative way. These results are combined with the sieve analysis axtm the fine material excluded from the tumbler test to give a total evaluation of the charcoal’s quality.

Small retorts of this type are conveniently heated by electricity which allows close control of temperature. Method asstm charcoal and charcoal briquettes. This is to prevent the finer charcoal cushioning the effect of rumbling on the coarse material during the test. The lid should have a hole in the centre asmt a diameter of 1.

Please login to your authorized staff account to use this feature. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Standard Practice for Collection and Preparation of Coke Samples for Laboratory Analysis

Content only available by subscription. The analysis samples can be used to determine the value of the coke represented, its ability to meet specifications, as well as for other purposes. Crush or grind sample and weigh accurately 3 grammes in a platinum or porcelain crucible with a lid. Standards for charcoal testing are derived from fuels such as coal or coke and, in some cases, are modified to apply specifically to charcoal analysis.


Used for charcoal briquettes. Prepare sample as above. Quality control of charcoal and by-products 8. Preparation of charcoal sample. Non-condensable gases may be collected and analysed but more usually are simply burned to waste.

Put the hot crucible into a desiccator with calcium chloride as a desiccant, until the sample has cooled. The weight obtained multiplied by 10 gives the bulk density per litre.

This practice may be used to provide a representative sample of the coke from which it is collected.

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The conditions in the small retort are not very similar to continuous large-scale retort systems. Combining values from the two systems may result in non-conformance with the standard. There were no books found for the applied search filters. The charcoal maker engaging in export business may rely on his partners abroad, who are normally well d46, and have capable staff to x346 with problems which arise and provide customers with advice.

After ignition, the calorimeter has to be shaken for about half an hour.

Enter your account email address to request a password reset: After cooling, the contents of the beaker are poured through a weighed glass filter which collects the barium-sulphate precipitate. Shake the whole screen set for two minutes. Container made from wire 3d46 3.