SAE J1277:2018 pdf free

SAE J1277:2018 pdf free.Method for Assessing the Cleanliness Level of New Hydraulic Fluid
Use an appropriate means of agitating the fluid in its normal storage container (for example, a paint shaker for small containers, a drum rocker for large shipping containers, and a high volume circulating system for bulk storage vessels).
Use a device to facilitate the withdrawal of a fluid specimen at the prescribed level in the container. Examples of such devices are ilustrated in Figure 1 – a bottle thief (ASTM D 270) for tanks, a drum sampler, and a crankcase sample for cans.
Open the container and insert the sampling appendage where its fluid entrance is well below the surface and extract a volume of fluid equal to at least five times, preferably ten times, the total sampling apparatus volume for the purpose of flushing the wetted surfaces. This hydraulic fluid may be discarded or returned to the container.Care should be taken to keep the external surfaces of the sampling device that is inserted into the container free from contaminant prior to and during sampling.
After the flushing volume has been removed, insert the sampling appendage to within 5% from the bottom of the vessel and withdraw a sufficient amount of fluid to run four analyses into the sample container.
NOTE: Where appropriate, the sample should be taken with the container tilted approximately 30 degrees from the vertical such that the opening through which the sample is taken is on a vertical line passing through the lowest point of the vessel.
NOTE: When using the bottle thief, the cork should not be opened for at least 30 s to allow particles on external surfaces to settle past the bottle.
Using an automatic particle counter (APC) calibrated as specified in 3.5, count and record the number of particles in at least 10 mL of fluid in the following size ranges – numbers greater than 4, 6, and 14 μm. Repeat at least three times. The first analysis is to be considered a“flushing” procedure to cleanse the APC and is not to be included in the final results. Discard these results and run the next three analyses to use as particle count data. The final three analysis runs are to be averaged into a final result.SAE J1277 pdf free download.