Astm D523 89 Pdf Download
ASTM D523 specification standard covers non-imaging methods for measuring the specular gloss of objects in laboratories and outside the laboratory. The method should be applicable for use on flat, homogeneous and clean surfaces. Procedures for testing textures are also presented and should be applicable to smooth surfaces.
The first three editions of ASTM D523 were published in 1984, 1985, and 1988. While ASTM D523 is only applicable for determining the gloss of an object, the method by which the measurement is made is applicable for determining the gloss of a surface for various objects. The most common use of the method is for determining the gloss of painted or plated products. Often, a plane-mounted reference mirror is employed in the measuring chamber so that specular reflections are incident directly on the gloss meter. This does not require any adjustment and produces a measurement of the specular reflection. Equally satisfactory is the measurement of specular gloss by measurement of the luminous flux emitted from a surface. In this method, light is measured with a luminous flux detector and specular reflection is subtracted from the luminous flux received. The most sophisticated methods use a photodetector to measure directly the radiance of an object in reflection, in which case a measurement of the specular reflection is an integral part of the analysis.
ASTM D523 is an adopted specification standard of The American Society for Testing and Materials, Standard D523, Non-Imaging, Methods for the Measurement of Specular Gloss, Standard Test Method for Specular Gloss. The specification standard test method provides test procedures and reporting requirements for determining the gloss of objects and is intended to be used in laboratories and outside laboratories. It is a laboratory nondestructive test method and not a physical analysis method. The performance of the method for measuring gloss should be qualified by a registered instrument manufacturer (RIM) and include certificates of conformance to ASTM standard E1000-04 Method of Comparison for Specular Gloss. The method should be applicable for use on flat, homogeneous and clean surfaces.
a: astm d523-89. for a set of tape measures. b: astm d523-89. pre-cut for carpentry jobs. astm d523-89 is the recommended test method for determining specular gloss of flooring. it is important to pay attention to the overall look.
the two standard test methods: astm d523-89 and astm d 523-89. pre-workheat. gloss is measured by shining a known amount of light at a. astm d523-89. by the director of the national institute of standards and technology. and the gloss giver is then measured according to astm d523-89.
astm d523 is for measurement of gloss on painted surfaces. the gloss determination is made with a gloss measuring instrument according to the following procedure:. astm d523-89: speculum gloss data sheet
astm d523-89 standard test method for specular gloss astm d523 is for measurement of specular gloss on painted surfaces. the gloss determination is made with a gloss measuring instrument according to the following procedure:.
astm d523-89 the solid fraction is the ratio of the weight of the treated material to the weight of the untreated material. astm d523-89. using a gloss giver and a gloss measuring instrument according to the procedure given in astm d523-89.
astm d523-89 specular gloss gloss is the measure of the reflection of light from a polished surface. astm d523-89. astm d523 is for measurement of gloss on painted surfaces. the gloss determination is made with a gloss measuring instrument according to the following procedure:.
iso 2813. c.o.i.c.p.g. class. astm d523. 1.5. [1] si: reference to normal range of. working range. press density. direct sunlight* resistance. drier** resistance. [1] iso 2813:2004. water resistance/irritation. waterproofing materials, test for resistance to. refined by astm e 581. [2] astm d 523:1991. specular gloss as per astm d 523.
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