ASTM B – Download as PDF File .pdf), Text File .txt) or read online. ASTM B Standard Test Method for Measurement of Coating Thickness by X- Ray Spectrometry. 25 Jan Introduction to ASTM B; the “Standard Test Method for Measurement of Coating Thickness with X-Ray Spectrometry”. Overview provided by.
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So, the majority of analyzer certifications that Eastern Applied Research technicians provide are for coating thickness applications and those certifications actually reference the ASTM Standard B In all, thirteen 13 factors are highlighted and worth knowing about in case issues occur.
Eastern Applied Research, Inc. It is important to note that ASTM B does not detail safety procedures relating to operation of x-ray spectrometry and refers the reader to the appropriate governing bodies and regulations. Each element emits energy at a different wavelength so the plating and base material show separate peaks in the XRF spectrum.
Advanced Plastic wstm Material Testing, Inc.
ASTM B X-Ray Fluorescence XRF is a non-destructive method of measuring plating thickness by using an X-ray beam to excite the surface of a sample and then calculating the intensity of the energy returned by the plating versus the base material. An increase in plating thickness results in a larger peak from the g568 material and a smaller peak from the base material.
This method is frequently used to measure gold thickness, platinum thickness, nickel thickness, or zinc thickness over metallic substrates. Our laboratory also provides laboratory services for plastic testingmetal testingrubber testingoil testingpaint testingplating testingadhesive testingcircuit board testingand other testing.
This industry standard ASTM B should be reviewed by all operators of x-ray fluorescence because it offers a beneficial overview and highlights proper implementation of the technology. It also provides an overview of calibration techniques and best practices along with standard-less fundamental parameters calibrations. Eastern Applied associates are available to help with safety radiation related questions and training if needed.
Material testing you can trust since Cannot measure elements with an atomic weight less than that of calcium. Measuring coating thickness was one of the first applications of x-ray fluorescence spectrometry and is still one of the most common uses of the technology.
The benefit to operators is that it details the variations in x-ray spectrometry systems and explains how XRF works with some terminology that may be useful. Standards of known thickness are required to generate a calibration curve for each plating and base material combination.
However, the ASTM B standard also details some variables that an operator may not think of; such as sample curvature, substrate composition, and surface cleanliness.
A minimum area of 0. Results are reported in a table with five or more readings per sample.