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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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This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Warm the crucible and contents on a steam bath until effervescence has ceased. 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 by conventional methods because of the presence of such constituents as nonpetroleum fluids or nonsoap-type thickeners, or both.

Free Alkali and Free Acid. Historical Version s – view previous versions of standard Translated Version s: Find Similar Items This product falls into the following categories. Rinse the watch glass with water into the crucible.

NOTE 4 – This test method gives more concordant results than the routine method Section 8but it requires more time and manipulation. These test methods are applicable to many, but not all, greases. The solution, when tested with methyl red Warning – Flammable.


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

Contact with organic material may cause fire. The constituents that can be determined are soap, unsaponifiable matter petroleum oil, and so d18water, free alkalinity, free fatty acid, fat, glycerin, and insolubles.

Slowly burn off the combustible matter, and d182 ignite the residue until the ash is free of carbonaceous matter. Lithium is indicated by a white infusible ash, readily soluble in water, giving a strongly alkaline solution. Accept and continue Learn more about the cookies we use and how to change your settings.

You may find similar items within these categories by selecting from the choices below:. Alternative Test Method 9.

Avoid skin contact or ingestion for free acidity, shall show free acid present. Contact with us now Your mail: Please download Chrome or Firefox or view our browser tips.

Take the smart route to manage medical device compliance. The faster, easier way to work with standards. Learn more about the cookies we use and how to change your settings. Liquid and vapor cause severe burns. May be harmful if swallowed. May be fatal if swallowed. Ash determinations made on the same sample in different laboratories are likely to vary widely. Power by seonoco All Rights Reserved: Moreover, if much Na2CO3 or K2CO3 is present, the ash is fusible and often encloses carbon, making complete removal of the latter very difficult.

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ASTM D128 – 98(2014)E1

Your basket is empty. NOTE 3 – The determination of the total ash should not in general wstm regarded as of any great importance.

It is, however, sometimes required. Results will always be low in the presence of easily reducible oxides of volatile astn. Any of the test methods described herein are best used by an experienced grease analyst who may also be able to make appropriate adaptations of the techniques as occasion requires.

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.

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

Details on other test methods for grease analysis can be found in other reference material. Click to learn more. After cooling and weighing, report the result as percentage of ash as sulfates. Historical Version s – view previous versions of standard. In some cases, asgm constituents can react with strong acid or alkaline solutions. Link to Active This link will always route to the current Active version of the standard. Rapid Routine Test Method 8.

A white infusible ash, practically insoluble in water but imparting to it an alkaline reaction, may indicate calcium, with or without magnesium or aluminum.