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ASTM D standard describes the conductivity test used to assess the presence of ASTM D test method consists in combining equivalent volumes of. ASTM D – Standard Test Method for Conductimetric Analysis of Water Soluble Ionic Contaminatio. ASTM D Standard Test Method for Conductimetric Analysis of Water Soluble Ionic Contamination of Blast Cleaning Abrasives.

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The Elcometer Abrasive Soluble Salt Test Kit provides all that is needed to carry out the test in the field or in the laboratory.

There was no direct correlation possible between numerical results obtained and reported by the two different methods. Test the samples separately. The resulting slurry is allowed to settle and the filtered water can then be tested using a conductivity meter.

Elcometer E Conductivity Meter An entry level conductivity meter, is ideal for 4d940 soluble salt concentration and electric conductivity EC of solutions. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

Elcometer 138 Abrasive Soluble Salt Test Kit – ASTM D4940

That is, high conductivity due to a lower pH of the contamination would normally indicate greater corrosion potential. Calculate the cell constant, K25, as follows: Originally approved in Abrasives used for blast cleaning surfaces can be contaminated with soluble salts due d44940 the source or the re-use of the blasting media. This constant should be checked periodically, one method being as follows: Unless otherwise indicated, it is intended that all reagents conform to the speci?

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Elcometer Bresle Salt Kit A range of products to test the level of contaminants on the surface. This 1 This speci? A Micro Mho Per Centimetre 1? The conductivity, which is related to the concentration of soluble ionic materials contaminating the abrasive surface, d440 calculated from the conductance and the cell constant.

The Society for Protective Coatings, 40 24th St. This contamination of the abrasive can transfer to the steel surfaces being blasted, where it may accelerate corrosion.

Last previous edition approved in as D – Converting from one unit base to another is not useful as the two methods differ in process. Another method is to stir the solution with a clean thermometer while the vessel is warmed or cooled by an external source.

Use successive portions of the sample until a constant value is obtained. Abrasives that showed qualifying extracted salts using the ISO Procedure also showed qualifying extracted salt levels as speci? An independent study by SSPC showed that the relative order of extracted salts using each type of procedure on abrasive materials was identical. Reagents and Materials 6. When no markings distinguishing between units of production appear, take samples from the different packages in 8.

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Elcometer Abrasive Soluble Salt Test Kit – ASTM D

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

Elcometer E Conductivity Meter, ml Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

NOTE 3β€”In general the cell constant is not greatly affected by variations in the strength of the KCl solution, but, for greater accuracy, measurements should be made at or near the speci?

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? A number in parentheses indicates the year of last reapproval.

Current edition approved January 10, The reader is warned that it is difficult to make wstm comparisons between the results of these two different methods of analysis. The amount of supernatant liquid? Elcometer Inc, Michigan Office Relocation.