Link down load: ire 6he8e9czn. If the instrument reading for the second standard still does not agree within one unit of its assigned fre, repeat with another mid-range standard. DIN Germany Reflectometer as a means for assessing the specular gloss of smooth painted and plastic surfaces. Test Method D provides an alternative procedure for measuring reection haze. Opacity and Shade Meter.
Since the instrumental ratings are affected more than the visual ratings by changes in surface refractive index, non-agreement between visual and instrumental gloss ratings can occur when high gloss specimen surfaces differing in refractive index are compared. The angular dimensions of the receptor eld stop are odf from the receptor lens in a collimated-beam-type instrument, as illustrated in Fig. A study of the effect of geometric conditions on results of gloss tests with special attention to high-gloss panels.
ASTM D - 14() Standard Test Method for Specular Gloss
Also, Journal of Research, Nat. Clean the standards in warm water and a mild detergent solution brushing gently with a soft nylon brush. Test Method E includes techniques for the measurement of both distinctness-of-image gloss and reection haze. This standard is also available to be included in Standards Subscriptions.
NOTE 1—The parallel-beam glossmeters possess the better uniformity of principle-ray angle of reection, but the converging-beam glossmeters possess the better uniformity in extent of angular divergence accepted for measurement. Measurements by this test method correlate with visual observations of surface shininess made at roughly the corresponding angles. If the reading is not within Cylindrical Mandrel Bend Tester.Gloss ASTM D, ASTM D Specular Gloss ASTM D, ASTM D Scope: Specular Gloss is a measure of the light reflected by the surface of a material. Gloss can be inherent in the material, a result of the molding process, or a result of surface texture. Gloss can also be affected by environmental factors such as weathering or surface abrasion. Sep 10, · Author: admin Published Date: September 10, Leave a Comment on ASTM D PDF. ASTM D Standard Test Method for Specular Gloss. ASTM D Standard test method for specular gloss ASTM International offers global access to standards development for over participating countries. 21 มี.ค. แจก ASTM D, Standard Test Method for Specular Author: Gumuro Juhn. Download Astm D Standard Test Method For Specular Gloss. Type: PDF. Date: October Size: KB. Author: CemalOlgunÇağlayan. This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form.
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Download PDF - Astm D Standard Test Method For Specular Gloss [d4pqd79np]
To calibrate, adjust the instrument to read correctly the gloss of a highly polished standard, properly positioned and oriented, and then read the gloss of a working standard in the mid-gloss range. Proceed to Checkout Continue Shopping. If the document is revised or amended, you will be notified by email. A study of the asym downloae gloss methods in ASTM and other societies, describing the background in the choice of geometry of these methods.
ASTM D Archives - Civil Engineers Standards
Never place standards face down on a surface that may be dirty or abrasive. The axis of the incident beam and the axis of d receptor shall be astj 0.ASTM D - Specular Gloss Testing Services - TRL
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Specular Gloss – ASTM D523
Some manufacturers may consider testing and certification an obstacle to overcome to get to market. Others might see it as an important way to reduce risk or liability.The ASTM D test method explains the measurement of gloss on non-metallic samples for geometries of 20, 60 and 85 degrees. The ASTM D standard test method is used to measure the gloss of solid plastics and plastic films (opaque and transparent both). There are four separate gloss angles for the different specimens, such as 60° for. ASTM D covers the measurement of the specular gloss of nonmetallic specimens for glossmeter geometries of 60º, 20º, and 85º. The geometry of angles and apertures is chosen so that these procedures may be used as follows: The 60º geometry is used for intercomparing most specimens and for determining when the 20º geometry may be more. Feb 11, · ASTM D – 90 pdf free download. Standard Test Method for Ratio of Anatase to Rutile in Titanium Dioxide Pigments by X-ray Diffraction1 This standard is issued under the ﬁxed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
Ensuring the Safety and Performance of Electrical Products. Global Reach Intertek is the industry leader with employees in 1, locations in over countries. Whether your business is local or global, we can help to ensure that your products meet quality, health, environmental, safety, and social accountability standards downlad virtually any market around the world. Gloss can be inherent in the material, a result of the molding process, or a result of surface texture.
Gloss ASTM D, ASTM D
Gloss can also be affected by environmental factors such as weathering or surface abrasion. Thus Gloss can be useful in product development, process development, and end use performance testing. The Glossmeter is set to the proper angle, calibrated, then checked with the standard supplied with the meter. The meter is then placed on the test sample and a reading is taken. Specimen size: Any flat surface larger than the base of the Glossmeter - 45 x mm 1.