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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No other units of measurement are included in this standard. NOTE 3 – The determination of the total ash should not in general be regarded as of any great importance.

ASTM D standard test methods for analysis of lubricating grease – YONGRUN

Ash determinations made on the same sample in different d1128 are likely to vary widely. Find Similar Items This product falls into the following categories. You may experience issues viewing this d1128 in Internet Explorer 9, 10 or 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.

Details on ashm test methods for grease analysis can be found in other reference material. The faster, easier way to work with standards. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

If lead or zinc soap is known to be absent, a platinum crucible is more convenient. Liquid and vapor cause severe burns. After cooling and weighing, report the result as percentage of ash as sulfates.


If only one base is present, a quantitative determination is, in general, unnecessary. In some cases, these constituents can react with strong acid or alkaline solutions. Contact with water liberates large amounts of heat running the acid ast carefully from a pipet inserted under a small watch glass covering v128 crucible. Lithium is indicated by a white infusible ash, readily soluble in water, giving a strongly alkaline solution.

This determination is often unsatisfactory because of interaction between Na2CO3 derived from the soap and inorganic insolubles. Link to Active This link will always route to the current Active version of the standard. 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. Please download Chrome or Firefox f128 view our browser tips.

This test method is intended primarily for application to greases containing thickeners that are x128 insoluble in n -hexane, and to greases that cannot be analyzed by conventional methods because of the presence of such constituents as nonpetroleum fluids or nonsoap-type thickeners, or both.

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

Historical Version s sstm view previous versions of standard Translated Version s: May be fatal if swallowed. Free Alkali and Free Acid. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.

There is always likelihood of reaction with the porcelain crucible itself on account of the astk continued heating necessary to burn off all carbon. Power by seonoco All Rights Reserved: You may find similar items within these categories by selecting from the choices below:.


These test methods are applicable to many, but not all, greases. NOTE 4 – This test method gives more concordant results than the routine method Section 8but it requires more time and manipulation. Search all products by.

It is, however, sometimes required. Contact with us now Your mail: Slowly burn off the combustible matter, and finally ignite the residue until the ash is free of carbonaceous matter. Cool the crucible and contents in a desiccator and weigh, reporting the result as percentage of ash.

May be harmful astk swallowed. 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. Your basket is empty. Confirm the presence of the several bases by suitable chemical tests, following any standard scheme of qualitative analysis.

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 r128 excess SO3. Learn more about the cookies we use and how to change your settings.

ASTM D128 – 98(2014)E1

The solution, when tested with methyl red Warning – Flammable. Rinse the watch glass with water into the crucible. Click to learn more. Rapid Routine Test Method 8.

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