ASTM E578-07 Linearity of Fluorescence Measuring Systems

Scope: ASTM E578-07 test method covers the performance properties of the fluorescence measuring systems. The limits of the linearity response are determined with respect to the range of concentration of a fluorescence substance. The stiffness of the material, recovery of the deformed portion, strain calculation, functioning, product assessment, transformation temperatures, quality control, specification acceptance, and...

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ASTM D7681 Measuring Gradation of Glass Spheres using a Stream Digital Image Analyzer 

Scope: ASTM D7681 test technique determines the gradation (size distribution) of glass beads used in pavement marking applications. Glass beads significantly influence the retroreflective effectiveness of a pavement marking system. Procedure: In ASTM D7681, a flowing stream digital image analyzer examines the glass particles for image processing and photo-optical single particle counting technology. The amount...

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ASTM E2141 Accelerated Aging of Electrochromic Devices in Sealed Glass Units

Scope: Accelerated Aging of Electrochromic Devices by ASTM E2141 test methods provide accelerated aging or durability, and performance monitoring of the time-dependent electrochromic windows. These are useful only for multilayered absorptive electrochromic coatings on sealed insulating glass units fabricated for vision glass areas employed in the buildings like windows, doors, exterior wall systems, and skylights. ...

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ASTM C730 Standard Test for Knoop Indentation Hardness of Glass

Scope: In ASTM C730, the Knoop Indentation Hardness Test is used to determine the Knoop Indentation Hardness of glass. It determines the mechanical hardness of very brittle materials or thin sheets, where only a small indentation may be made for testing purposes. The test is valid for a wide range of test forces and very...

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ASTM C146 Chemical Analysis of Glass Sand

Scope: ASTM C146 is used to identify whether the composition of the glass sand meets the specification required in the manufacturing of a glass product. This test is not the standard for the analysis of glass sand but it’s a quick and accurate method used for routine analysis.  ASTM C146 is used in the analysis...

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ASTM C225 Test Methods for Resistance of Glass Containers to Chemical Attack

Scope: Glass containers may react with chemicals present in food, beverages, or pharmaceutical products, producing harmful substances that seep into the product. For safe packaging and storage, ASTM C225 determines the reactivity of glass with the chemicals present in the product.  Since many products are sterilized for packing, the test specifies autoclave conditions during testing....

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ASTM C429 Test for Sieve Analysis of Raw Materials for Glass Manufacture

Scope: ASTM C429 is used for sieve analysis of glass raw materials. Sieve analysis is used to assess the particle size distribution of a granular material. The granular material is allowed to pass through a series of sieves of progressively smaller mesh size and the amount of material that is stopped by each sieve is...

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ASTM C813 Test for Hydrophobic Contamination on Glass by Contact Angle Measurement

Scope: ASTM C813 detects layers of organic molecules by observing the contact angle measurements. Organic molecules change the contact angle of glass. The contact angle is the angle where a liquid-vapor interface meets a solid surface. It quantifies the wettability of a solid surface by a liquid via the Young equation.  The data from the...

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ASTM C1279 Test for Edge and Surface Stresses in Tempered Flat Glass

Scope: The strength and performance of heat-strengthened and fully tempered glass are greatly affected by the surface and edge stress induced during the heat-treating process. Residual stresses are stresses that remain in a solid material even after the original cause of the stresses has been removed. ASTM C1279 offers a direct, non-destructive way to determine...

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ASTM C1901 Test for Measuring Optical Retardation in Flat Architectural Glass

Scope: ASTM C1901 is used to measure optical anisotropy in architectural glass used as a building material. Anisotropy is the non-uniform spatial distribution of properties, which results in different values being obtained when specimens are probed from several directions within the same material. During heat treatment, stresses are applied to the glass to improve its...

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ASTM C149 Test for Thermal Shock Resistance of Glass Containers

Scope: ASTM C149 determines the relative thermal shock resistance of commercial glass containers that have to withstand sudden changes in temperature during application in services such as washing, pasteurization, or when glass is transferred from a warm to a colder medium or vice versa. The test apparatus consists essentially of a basket for holding the...

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ASTM C147 Test for Internal Pressure Strength of Glass Containers

Scope: ASTM C147 is used to test glass containers expected to contain products that apply sustained pressure on the inside walls of the containers. This test is used in the selection process, design data generation, and quality control.  Test Procedure: Two test methods are used in ASTM C147 to determine the strength of the glass...

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