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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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. There is always likelihood of reaction with the porcelain crucible itself on account of the long continued heating astn to burn off all carbon. Alternative Test Method 9.
Lithium is indicated by a white infusible ash, readily soluble in water, giving a strongly alkaline solution.
No other units of measurement are included in this standard. Find Similar Items This product falls into the following categories.
ASTM D – 98()E1 – Standard Test Methods for Analysis of Lubricating Grease
NOTE 4 – This test method gives more concordant results than the routine method Section 8but it requires more time and manipulation. Take the smart route to manage medical device compliance.
Liquid and vapor cause severe burns. Warm the crucible and contents on a steam bath until effervescence has ceased. Rapid Routine Test Method 8. You may find similar items within these categories by selecting from the choices below:. Slowly burn off the combustible asmt, and finally ignite the residue until the ash is free of carbonaceous matter.
If lead or zinc soap is known to be absent, a platinum crucible is more convenient. Learn more about the cookies we use and how to change your settings. Rinse asttm watch glass with water into the crucible. The faster, easier way to work with standards. If only one base is present, a quantitative determination is, in general, unnecessary. 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 D128 – 98(2014)E1
Historical Version s – view previous versions of standard. A white infusible ash, practically insoluble in water but imparting to it an alkaline reaction, may indicate calcium, with or without magnesium or aluminum. You may experience issues viewing this site in Internet Explorer 9, 10 or This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Free Alkali and Free Acid. Moreover, if much Na2CO3 or K2CO3 is present, the ash is fusible and often encloses carbon, making complete removal of the latter very difficult.
Link to Active This link will always route to the current Active version of the standard. Your basket is empty. Zinc is shown satm the yellow color of the ash while hot, and astmm may be indicated by the presence of metallic globules or by the 1d28 color of the ash when cold. In some cases, these constituents can react with strong acid or alkaline solutions.
Historical Version s – view previous ashm of aatm Translated Version s: After cooling and weighing, report the result as percentage of ash as sulfates. Avoid skin contact or ingestion for free acidity, shall show free acid present. Contact with organic material may cause fire. Search all products by. Power by seonoco All Rights Reserved: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM D standard test methods for analysis of lubricating grease – YONGRUN
Click to learn more. May be fatal if swallowed. 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, asttm both.
May d1228 harmful if swallowed. Details on other test methods for grease analysis can be found in other reference material. 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.
NOTE 3 – The determination of the total ash should not in general be regarded as of any great importance. It is, however, sometimes required. Confirm the presence of the several bases by suitable chemical tests, following any standard scheme of qualitative analysis.