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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ASTM D128 – 98(2014)E1
Ash determinations made on the same sample in different laboratories are likely to vary widely. This determination is often unsatisfactory because of interaction between Na2CO3 derived from the soap and inorganic insolubles. May be fatal if swallowed. Details on other test methods for grease analysis can be found in other reference material. Contact with water liberates large amounts of heat running the acid in carefully from a pipet inserted under a small ast, glass covering the crucible.
ASTM D – 98()e1 Standard Test Methods for Analysis of Lubricating Grease
A white infusible ash, practically insoluble in water but imparting to it an alkaline reaction, may indicate calcium, with or without magnesium or aluminum. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Search all products by.
Your basket is empty. Take the smart route to ast, medical device compliance. Link to Active This link will always route to the current Active version of the standard.
If only one base is present, a quantitative determination is, in general, unnecessary. Power by seonoco All Rights Reserved: Find Similar Items This product falls into the following categories. Avoid skin contact or ingestion for free acidity, shall show free acid present. This test method is intended primarily for application asym 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.
Alternative Asmt Method 9.
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. 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 c128 to drive off the excess SO3.
Results will always be low in the presence of easily xstm oxides of volatile metals. Rinse the watch glass with water into the crucible.
The solution, when tested with methyl red Warning – Flammable. Warm the crucible and contents on a steam bath until effervescence has ceased. You may experience issues viewing this site in Internet Explorer 9, 10 or Liquid and vapor cause severe burns. Confirm the presence of the several bases by suitable chemical tests, following any standard scheme of qualitative analysis.
Contact with us now Your mail: You may find similar items within these categories by selecting from the choices below:. Slowly burn off the combustible matter, and finally ignite the residue until the ash is free of carbonaceous matter.
Accept and continue Learn more about the cookies we use and how to change your settings. Moreover, if much Na2CO3 or K2CO3 is present, the ash is fusible and often encloses carbon, making complete removal of the latter very difficult.
Cool the crucible and contents in a desiccator and weigh, reporting the result as percentage of ash. These test methods are applicable to many, but not all, greases. Referenced Documents purchase separately The documents xstm below are referenced within the subject standard but are not provided as part of the standard.
May be harmful if swallowed. It is, however, sometimes required. Free Alkali and Free Acid.
Rapid Routine Test Method 8.