We perform testing by ASTM D to evaluate the compatibility of lubricants with elastomers by measuring the changes in an elastomer immersed in lubricant . ASTM D()e1. Standard Test Method for Elastomer Compatibility of Lubricating Greases and Fluids. standard by ASTM. Buy ASTM D TEST METHOD FOR ELASTOMER COMPATIBILITY OF LUBRICATING GREASES AND FLUIDS from SAI Global.
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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. These results are limited for a number of reasons.
Results of the extended tests were startling. Virtually all other equipment and supplies specified in the procedure are stock items in lubricants laboratories. To advance the compatibility study, application testing should be performed. Fluid and seal asgm routinely perform their own tests, which usually result in compatibility ratings in broad generalizations for entire families of elastomers. For example, a dynamic seal may be required to retain more of its original properties asgm a static seal.
Add to Alert PDF. The company ran chemical compatibility simulations between 60 to 90 days, and in some cases longer. Engineering Applications The ultimate purpose of a chemical compatibility program is to evaluate the ability of an elastomer to function as a v4289 in its intended application when exposed to a working fluid.
For the past several years, System Seals, a research-based seal manufacturer in Cleveland, has undertaken an exhaustive fluid compatibility study that paired more than combinations of seal materials with commonly used industrial fluids.
Standard Test Method for Elastomer Compatibility of Lubricating Greases and Fluids
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. Emulsions at higher temperatures, for example, tended to demulsify, and biodegradable fluids acidified. Inasmuch as the precision values apply only to the elastomers specified in Annex A1 of Test Method Dwhen a lubricant specification requires some other elastomer, the user and 4d289 of the lubricant should agree to the values of acceptable precision.
These include treating long polymers chains as super-condensed gasses and then defining their empirical values. For specific hazard statements, see Note 4d289, Note 7, and Note 8. 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.
We have no document history for this standard. Testing of fluids was not included in Test Method D – 95 and earlier versions. Several of the fluid-material combinations that passed successfully within 28 days failed after longer exposures. Still, there are considerable inconsistencies among these tests. To ensure full saturation, the testing ran for 2, hours, or 12 weeks.
No other units of measurement are included in this standard. Theoretical models that have been established to predict fluid compatibility are based largely on the laws of chemistry.
Even when exposure times are sufficiently long, the evaluations might be limited to measuring changes in only volume and hardness. If the document is revised or amended, you will be notified by email.
Because some fluids experience chemical changes at higher temperatures, specific temperatures were used to control this. Please first verify your email before subscribing to alerts.
Already Subscribed to this document. No other units of measurement are included in this standard. Although some guidelines can be used to make engineering decisions, these values could be flexible or rigid, depending on the application. This standard is also available to be included in Standards Subscriptions. The base test parameters included volume swell, mass and density changes, hardness, tensile strength, elongation, percent modulus, work function area under tensile curve up to 20 percentcompression set and abrasion resistance.
ASTM D – Standard Test Method for Elastomer Compatibility of Lubricating Greases and Fluids
What this approach fails to address are the interactions between an actual polymer material and the specific formula of a given fluid — including a host of additives and contaminants that often go unaccounted for but significantly alter the equation.
Subscription pricing is determined by: In critical applications where the lubricant will be in contact with rubber parts subject to severe flexing, extreme temperatures, or similar stresses, other rubber properties, such as atm strength and elongation, should also be evaluated as they may be more indicative of the true compatibility characteristics.
Contraction, however, is more problematic because loss of seal volume reduces seal force. When volume increases are limited to 15 percent, contraction can be no more than 5 percent.
Norma ASTM D()e1
v4289 In most cases, testing reveals little to no information about any actual changes in material properties. The scope of this test method now includes the evaluation of the elastomer compatibility of both lubricating fluids and greases.
Your Alert Profile lists the documents that will be monitored. Such values may or may not be the same as those of Test Method D You may r4289 a document from your Alert Profile at any time. Historical Version s – view previous versions of standard.
ASTM D4289 – 13(2014)e1
Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. During the testing it became necessary to understand how the mechanical properties changed from exposure. We have no amendments or corrections for this standard. Traditional methods to determine elastomer seal compatibility with specific fluids have for decades produced misleading results, according to a new research from System Seals Laboratories. It is the responsibility of the user of this standard to establish appropriate safety and health d489 and determine the applicability of regulatory limitations prior to use.
Link to Active This link will always route to the current Active version of the standard. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. The scope of this test method now includes the evaluation of the elastomer compatibility of both lubricating fluids and asfm. Already Subscribed to this document.