Future revisions of ISO will accommodate changes in technology affecting test dust manufacturing processes and insure product consistency for years. ISO A2 Fine Test Dust Particle Size Distributions (Volume % Less Than). size. ISO A2 Fine. – – – ISO Road vehicles – Test contaminants for filter evaluation – Part 1: Arizona test dust.
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Test Sand & Test Dust
The small particle procedure, using fine dust is performed to ascertain the ability of equipment to resist the effects of fine particles which may penetrate into cracks, crevices, bearings, and joints. Consists of 20 grams of dry dust taken from the same lot as the dust in SRMand is provided with reference values from 1 micron to 50 microns. It specifies four grades of test dust including dust description, designation, particle size distribution, particle size analysis procedure, and chemical content.
Future revisions of ISO will accommodate changes in technology affecting test dust manufacturing processes and insure product consistency for years to come.
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Share this product Tweet. Four grades of test dust are designated in ISOa description of each is as follows: Material Safety Data Sheet. Sold in gram net weight quantities b Packaging can be 122103-1 to accommodate the larger 121003-1 ordered c Bulk Density: The Multisizer IIe analyzer measures particles individually by volume mass.
To the best of our knowledge since we are an active global distributor of all test dust and sands, ISO test dust is a non- contaminant and non-hazardous Class 60 material.
The nominal specific gravity is 2. It was originally developed for testing automotive cabin air filters. Although it is not currently specified as a suitable contaminant for cabin air filters, it is used as a test contaminant for fuel system components, water filter performance evaluation, and other custom applications.
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Certified values for particles sizes from 1 12103- to 30 microns are provided. The bi-modal aspect of this product traces back to the original roller analysis specification of Fine Test Dust shown in former revisions of SAE J Specification. A naturally occurring irregularly shaped mineral dust suspended in hydraulic oil at a nominal concentration of 2.
Samples from only two batches were used because only two batches of this type dust were produced prior to when ISO particle size limits were determined. The intent in producing a separate standard for the description of test dust was to provide a simple and accurate test dust reference for use in other standards or documents where test dust use is required.
Particle size limits specified per ISO are expressed as cumulative volume percent smaller than and listed as follows: Particle counting is a mainstay of contamination control in hydraulic, automotive, and aerospace applications. RoomBuilding 5, No. Standard Materials for Calibration.
Particles for analysis are suspended in an electrolyte solution. Particle sizes greater than 30 microns are given as reference values.
Test Sand & Test Dust
Particles are measured as they pass through the aperture. A view of volume differential particle size data indicates a bi-modal distribution with approximate peaks at 4 and 20 micron size.
The suspension is stirred and drawn through an aperture using a vacuum source. Certified and reference values for the cumulative number of dust particles per unit volume of hydraulic oil greater than the specified particle diameter are reported.