ASTM E 471 – 96 explains the determination of the char density profile of a charred ablator. This technique involves measuring, machining, and weighing a sample of a specific size to determine its density. Therefore, the sample should be strong enough to withstand all the techniques employed. Its value is stated in SI units.
Scope:
ASTM E 471–96 is a highly preferred method in measuring the density profile of ablative materials. This technique can be highly efficient if the char can be machined off in a plane parallel to the char-virgin material, and the total thickness of the char and degradation zone must be larger than the machining thicknesses required.
Procedure:
ASTM E 471–96 involves successive measuring, machining, and weighing a sample of a known size. Then the density of the sample is obtained with machining. The charred sample selected should be taken from a representative section of the ablated specimen where the environmental conditions are well known and where the surface is parallel to the char-virgin material interface.
Specimen Detail:
A typical specimen size should be 12.7 by 12.7 mm.
Result:
In this way, by performing ASTM E 471–96 carefully, the Char Density Profile of Ablative Materials can be successfully measured.
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!
