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 D – 98()e1 Standard Test Methods for Analysis of Lubricating Grease
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. Link to Active This link will always route to the current Active version of the standard.
Historical Version s – view previous versions of standard Translated Version s: Warm the crucible and contents on a steam bath until effervescence has ceased.
Rinse the watch glass with water into the crucible. D218 Documents purchase separately The documents listed below are referenced within the subject standard e128 are not provided as part of the standard. Ash determinations made on the same sample in different laboratories are likely to vary widely.
Results will always be low in the presence of easily reducible oxides of volatile metals. You may find similar items within these categories by selecting from the choices below:.
Power by seonoco All Rights Reserved: The solution, when tested with methyl red Warning – Flammable. Please download Chrome or Firefox or view our browser tips. No other units of measurement are included in this 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.
ASTM D – 98()E1 – Standard Test Methods for Analysis of Lubricating Grease
Details on asmt test methods for grease analysis can be found in other reference material. Confirm the presence of the several bases by suitable chemical tests, following any standard scheme of qualitative analysis.
Contact with us now Your mail: 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. You may experience issues viewing this site in Internet Explorer 9, 10 or Alternative Test Method 9.
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.
A white infusible ash, practically insoluble in water but imparting to it an alkaline reaction, may indicate calcium, with or without magnesium or aluminum. R128 Routine Test Method 8. In some cases, these constituents can react with strong acid or alkaline solutions.
The constituents that can be determined are soap, unsaponifiable matter petroleum oil, and so forthwater, free alkalinity, free fatty acid, fat, glycerin, and insolubles.
May be harmful if swallowed. Accept and continue Learn more about the cookies we use and how to change your settings. Lithium is indicated by a white infusible ash, readily soluble in water, giving a strongly alkaline solution. After cooling and weighing, aetm the result as percentage of ash as sulfates.
Search all products by. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. D12 and vapor cause severe burns.
Learn more about the cookies we use and how to change your settings. This determination is often unsatisfactory because of interaction between Na2CO3 derived from the soap and inorganic insolubles. This test method is intended primarily for application to greases containing thickeners that are essentially insoluble in wstm -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 D128 – 98(2014)E1
Free Alkali and Free Acid. NOTE 4 qstm This test method gives more concordant results than the routine method Section 8but it requires more time and manipulation. Click to learn more. Moreover, if much Na2CO3 or K2CO3 is present, the ash is fusible and often encloses carbon, making complete removal of the latter very difficult. If only one base is present, a quantitative determination is, in general, unnecessary.
It is, however, sometimes required.