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February 19, 2021 09:18 AM

Studying RPA ASTM methods for detecting compound quality differences

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    Technical notebook
    Technical notebook 02-22-21 >

    Over the last three decades, the rubber process analyzer has evolved as the processability test instrument of choice for measuring and solving many rubber factory problems. Also, a new ASTM reflective microscope method is commonly used.

    Now there is a total of nine different RPA ASTM International methods that are routinely used by the rubber industry to measure quality of raw rubber, state-of-mix differences for rubber compounds, predictions of downstream processability differences, etc. Of course, there are comparative advantages and disadvantages for each of these RPA ASTM methods, depending on the quality differences of the raw rubber and vast quality differences among factory recipes, even among compounds that are used for the same purpose.

    This paper uses a design of experiment to quantify some of the comparative advantages statistically for the RPA ASTM test methods.

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