What is irm 902 oil?
Testing oil for ASTM D471 Standard Test Method to evaluate the comparative ability of rubber and rubber-like compositions to withstand the effect of liquids.
What is IRM oil?
IRM REFERENCE OILS per ASTM D 471-06. Besides describing the procedures for various elastomer tests, it lists standard test liquids with which reference measurements can be performed. IRM 901, IRM 902 and IRM 903 are mineral oils with different paraffin and aromatic concentrations.
What is ASTM Oil No 3?
IRM 903 oil (Formerly known as ASTM Oil No 3) is a testing oil to be used in testing rubber components as per ASTM standards.
What is ASTM d471?
Standard Test Method for Rubber Property – Effect of Liquids. Summary. This standard is used to evaluate how vulcanized rubber products, or other products coated with vulcanized rubber, respond to the exposure of liquids (i.e. oils, greases, fuels, etc.)
What do you mean by aniline point?
Definition of aniline point : the lowest temperature at which aniline and a solvent (as gasoline) are completely miscible and which serves as an indication of the type of hydrocarbons present in the solvent, the content of aromatics being higher according as the temperature is lower.
How will you improve aniline point?
The aniline point increases with paraffinicity and decreases with aromaticity. It also increases with molecular weight. Naphthenes and olefins show values that lie between those for paraffins and aromatics.
How do you check aniline?
The test indicates if an oil is likely to damage elastomers (rubber compounds) that come in contact with the oil. The aniline point is called the “aniline point temperature,” which is the lowest temperature at which equal volumes of aniline (C6H5NH2) and the oil form a single phase.
What is aniline point of a lubricant?
Aniline point • The aniline point of an oil is defined as the minimum temperature at which equal volumes of aniline (C6H5NH2) and the lubricant oil are miscible, i.e. form a single phase upon mixing.
Why is aniline point important?
The aniline point serves as a reasonable proxy for aromaticity of oils consisting mostly of saturated hydrocarbons (i.e. alkanes, paraffins) or unsaturated compounds (mostly aromatics). Aniline point indicates if an oil is likely to damage elastomers (rubber compounds) that come in contact with the oil.
How do I check my aniline points?
Why is aniline point important for diesel?
Abstract: The aniline point (AP) is an important physical property of a petroleum fraction. The AP gives an indication of the aromatic hydrocarbon content in a hydrocarbon mixture and can also be an indicator of the ignition point of a diesel fraction.
When to use IRM 902 for ASTM D471?
IRM 902 Replacement for ASTM #2 Testing oil for ASTM D471 Standard Test Method to evaluate the comparative ability of rubber and rubber-like compositions to withstand the effect of liquids. Shipping Point: FOB Trenton NJ
What is the EVS value for IRM 902?
EVS (902) is the ASTM No. 2 percent volume swell value calculated from the measured percent volume swell value using IRM 902 as the immersion liquid. A similar calculation can be used to calculate the analogous EVS (903) and EVS (903) values. The EVS value is obtained as a correction of the measured IRM 901, 902, or 903 percent volume swell value.
How to change from ASTM to IRM oil?
The changeover from ASTM to IRM oils is proposed in two steps: 1.4.1 Step 1— A transition phase that makes use of the Equivalent Volume Swell (EVS) for each of the two replacement oils. EVS (902) is the ASTM No. 2 percent volume swell value calculated from the measured percent volume swell value using IRM 902 as the immersion liquid.