ASTM D1293 PDF

Be the first to comment! Refer to Test Methods D and D Referenced Documents wstm separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It is currently active in a UN peacekeeping mission in Mali to fight local Link to Active This link will always route to the current Active version of the ast. Historical Version s — view previous versions of standard Work Item s — proposed revisions of this standard Translated Version s: Water Wellbeing Ltd has two operational trading companies. Two buffers are used to standardize the instrument under controlled parameters, but the conditions are somewhat less restrictive than those in Test Method A.

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The sample color is measured and the results can be expressed on the L, a, b or x, y, z scales. Click and Receive a quote within the next 4 hours. Indeed the sample texture, may affect the correlation between the magnitude of a measured color difference and its commercial acceptability. Typically two color scales are used for color measurement: tristimulus X, Y, Z or the L, a, b scale.

Color differences among specimens should be compared only when they were measured on the same color scale system. However, for quality control purposes, it is necessary to know not only the magnitude of the departure from standard, but also the direction of this departure. Information on the direction of a color difference is easily included by giving the three instrumentally determined components of the color difference.

However, generally speaking, samples should be clean, dry and free of deposits. At the minimum, we need a flat, homogeneous area, the size of a nickel. If you have any questions about the ASTM D test or if you would like to speak to a material testing specialist about your custom testing requirements, we invite you to contact us today.

We also invite you to download our brochure to learn more about our Paint, Coating and Polymer testing services.

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