ASTM D542 is used to determine the Index of Refraction of Transparent Organic Plastics (Refractive Index). Index of refraction is used in the construction of optical lenses as well as a quality management check on clear plastics. This test is done using a refractometer.
Scope:
ASTM D542 test method provides a procedure for measuring the index of refraction of transparent organic plastic materials. The index of refraction is the ratio of light velocity in vacuum to light velocity in a transparent substance. Similarly, it can be used to measure the bent angle of a light beam as it travels through a transparent medium. The index of refraction is used in the construction of optical lenses as well as a quality management check on clear plastics.
Test Procedure:
A small drop of contacting liquid is mounted in the middle of the prism for the ASTM D542 test. Then the sample is kept on the prism. To coordinate the sample through the eyepiece, the light source, index arm, and compensator drum are all configured. The refractometer then provides a digital read-out of the refractive index.
Specimen size:
Usually a sample with 6.312.7 mm dimensions and polished flat surface is used for the test.
Data:
Index of Refraction
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 is a standard test method for the analysis of sulfochromate etches solution 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!
