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We perform lubricating grease quality testing by ASTM D, which gives several methods for determining and estimating the makeup of lubricating greases. These test methods for analysis cover greases of the conventional type, which consist essentially of petroleum oil and soap. The constituents that can be. ASTM D standard test methods for analysis of lubricating grease. ASH DETERMINATION 7. General The percentage of ash shall not be included in the.

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If lead or zinc soap is known to be absent, a platinum crucible is more convenient. Please download Chrome or Firefox or view our browser d28. Analysis, Extraction, Fat content, Fluid content, Free alkali content, Free fatty acid content, Glycerin content, Insolubles content, Lubricating grease, Petroleum oil content, Soap content, Soxhlet apparatus, Thickener content, Water content.

Referenced Documents purchase separately The documents listed below are referenced within the subject c128 but are not provided as part of the standard.

There is always likelihood of reaction with the porcelain crucible itself xstm account of the long continued heating necessary to burn off all carbon. May be harmful if swallowed. Zinc is shown by the yellow color of the ash while hot, and lead may be indicated by the presence of metallic globules or by the yellow color of the ash when cold.

Contact with us now Your mail: Moreover, if much Na2CO3 or K2CO3 is present, the ash e128 fusible and often encloses carbon, making complete removal of the latter very difficult. May be fatal if swallowed.


ASTM D128 – 98(2014)E1

Your basket is empty. Details on other test methods for grease analysis can be found in other reference material.

Find Similar Items This product falls into the following categories. Rinse the watch glass with water into the crucible. Free Alkali and Free Acid.

Evaporate the contents of the crucible to dryness and ignite the whole at a low red heat, adding a few small pieces of dry NH4 2CO3 Warning – Harmful if swallowed to drive off the excess SO3. Slowly burn off the combustible matter, and finally ignite the residue until the ash is free of carbonaceous matter. Contact with water liberates large amounts of heat running the acid in carefully from a pipet inserted under a small watch glass covering the crucible. It is, however, sometimes required. After cooling and weighing, report the result as 1d28 of ash as sulfates.

The faster, easier way to work with standards. Historical Version s – 1d28 previous versions of standard. Any of the test methods described herein are best dd128 by an experienced grease analyst who may also be able to make appropriate adaptations of the techniques as occasion requires.

Results will always be low in the asrm of easily reducible oxides of volatile metals. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Liquid and vapor cause severe burns.

ASTM D – 98()e1 Standard Test Methods for Analysis of Lubricating Grease

It is the responsibility of the user of this standard to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use. A white infusible ash, practically insoluble in water but imparting to it an alkaline reaction, may indicate calcium, with or without magnesium or aluminum.


Rapid Routine Test Method 8. Alternative Test Method 9. NOTE 4 – This test method gives more concordant results than the routine method Section 8but it requires more time and manipulation.

Lithium is indicated by a white infusible ash, readily soluble in water, giving a strongly alkaline solution. The constituents that can be determined are soap, unsaponifiable matter petroleum oil, and so forthwater, free alkalinity, free fatty acid, fat, glycerin, and insolubles.

In some cases, these constituents can react with strong acid or alkaline solutions. Search all products by. Power by seonoco All Rights Reserved: Confirm the presence of the several bases by suitable chemical tests, following any standard scheme of qualitative analysis.

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You may experience issues viewing this site in Internet Explorer 9, 10 or NOTE 3 – The determination of the total ash should not in general be regarded as of any great importance. This determination is often d18 because of interaction between Na2CO3 derived from the soap and inorganic insolubles.

Avoid skin contact or ingestion for free acidity, shall show free acid present.