ASTM D2457, ASTM D523 are used to determine the specular gloss of a material. Gloss may be an inherent or environmentally affected property of a material and helps to evaluate the visual experience of material in product and process development in end-use performance conditions.
Scope:
The Specular gloss of materials is determined by using test methods ASTM D2457, ASTM D523. A surface’s capacity to reflect light like a mirror is termed Specular Gloss. It can be inherent in the material or affected by environmental factors such as weathering and surface abrasion or processes like texturing and molding. Gloss is directly related to the visual perception of objects equally important as color when the psychological impact of products on the end consumer is considered. Gloss is helpful in product and process development along with end-use performance testing. Gloss levels must be consistently achieved on products or different batches of products.
Test Procedure:
ASTM D2457, ASTM D523 test methods are used to determine specular gloss of material. A beam of light at a specified intensity and angle is projected, and the amount of reflected light at an equal and opposite angle is measured to determine gloss value. ASTM D2457, ASTM D523 standard requires that angle of reflection must be specified (20°, 60°, or 85°). Calibrated Glossmeter is set to the proper angle and checked with the standard supplied. The meter is placed on the test sample, followed by noting the reading.
Specimen size:
Specimens with a flat surface larger than the base of Glossmeter are used (45 × 145 mm or 1.75 inch × 5.625 inch minimum) are used.
Data:
The result is given in glass units (GU)
20° Gloss (GU)
60° Gloss (GU)
85° Gloss (GU)
Conclusion:
ASTM D2457 and ASTM D523 test methods explain the measurement of the gloss of solid plastics and plastic films and gloss on non-metallic samples.
Metrology
A variety of microscopy and spectroscopy tools available for precise measurements from the nano to the meter scale.
Metrology Testing Services POPULAR TESTS:
Materials Testing
ASTM and ISO standard and custom chemical, mechanical, thermal, corrosion tests, etc. for all materials metals, ceramic or polymers.
Materials Testing Services POPULAR TESTS:Nondestructive Testing Electrical Testing Chemistry Analysis
Product Testing
Thousands of tests for product quality and reliability under heat, humidity, temperature shock, vibration, drop, electrostatic discharge.
Product Testing Services POPULAR TESTS:ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 test is a standard test method for the analysis of sulfochromate etch solutions used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
You share material and testing requirements with us
We ensure your sample pick-up in an ensured manner
We deliver test report to your inbox
Just share your testing requirements and leave the rest on us!
