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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Link to Active This link will always route to the current Active version of the standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Accept and continue Learn more about the cookies we use and how to change your settings. Rapid Routine Test Method 8.

May be harmful if swallowed. Confirm the presence of the several bases by suitable chemical tests, following any standard scheme of qualitative analysis. Historical Version s – view previous versions of standard Translated Version s: 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.

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. Your basket is empty. Results will always be low in the presence of easily reducible oxides of volatile metals. NOTE 4 – This test method gives more concordant results than the routine method Section 8but it requires more time and manipulation. Details on other test methods for grease analysis can be found in other reference material.


ASTM D – 98()E1 – Standard Test Methods for Analysis of Lubricating Grease

In some cases, these constituents can react with strong acid or alkaline solutions. You may experience issues viewing this site in Internet Explorer 9, 10 or Please download Chrome or Firefox or view our browser tips.

Liquid and vapor cause severe burns. These test methods are applicable to many, but not all, greases. Cool the crucible and contents in a desiccator and weigh, reporting the result as percentage of ash. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.

Slowly burn off the combustible matter, and finally ignite the residue until the ash is free of carbonaceous matter. The faster, easier way to work with standards. After cooling and weighing, report the result as percentage of ash as sulfates. No other units of measurement are included in this standard.

ASTM D128 – 98(2014)E1

May be fatal if swallowed. A white infusible ash, practically insoluble in water but imparting to it an alkaline reaction, may indicate calcium, with or without magnesium or aluminum. Learn more about the cookies we use and how to change your settings. Evaporate the contents aetm 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.


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.

Rinse the watch glass with water into the crucible. Contact with organic material may cause fire. Find Similar Items This product falls satm the following categories.

You may find similar items within these categories by selecting from the choices below:. Free Alkali and Free Acid. Contact with us now Your mail: If only one base is present, a quantitative determination is, in general, unnecessary. This test method is intended primarily for application to greases containing thickeners that are essentially insoluble in n -hexane, and to greases that cannot be analyzed s128 conventional methods because of the presence of such constituents as nonpetroleum fluids or nonsoap-type thickeners, or both.

Alternative Test Method 9. The solution, when tested with methyl red Warning – Flammable.