ASTM E508 is a standard test method for determining calcium and magnesium in iron ores, concentrates, and agglomerates in the mass fraction range of 0.05% to 5% calcium and 0.05% to 3% magnesium. Flame Atomic Absorption Spectrometry (F-AAS) technique is used in this test method. These values are considered standard when expressed in SI units.
ASTM E508 Standard Test Method for Determination of Calcium and Magnesium in Iron Ores by Flame Atomic Absorption Spectrometry
What is ASTM E508?
What is the Scope of ASTM E508?
This test technique is designed to check whether impurity content conforms to compositional criteria. This test method is used as a reference method for compliance with compositional specifications for impurity content. It is assumed that the work would be done in a fully equipped laboratory with suitable waste disposal processes in place.
ASTM E508 Testing Procedure and Requirements
The analytical sample is pulverized until it passes through a 150-m sieve. With the addition of a small quantity of HNO3, the sample is dissolved in HCl. Any insoluble residue is filtered, processed for calcium and magnesium recovery, and reintroduced to the main solution after evaporation and dehydration. The solution is aspirated into the atomic absorption spectrometer’s flame. A nitrous oxide-acetylene burner is used for calcium, whereas an air-acetylene burner is chosen for magnesium. Atomic absorption spectrometry is used to measure the absorbed energy at the resonance line of the spectrum of calcium or magnesium and compared it to the calibration solutions of the two elements.
ASTM E508 Result Analysis and Interpretation
The calcium and magnesium mass fractions (percentages) are calculated as follows:
Calcium or magnesium, % = (A × 200)/ (B × 10 000)
Where:
A = calcium or magnesium per mL, μg
B = sample represented in the 200-mL volume of the final test solution, g
FAQ
Where can I get the astm e508 tested?
You can share your astm e508 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e508 test to various testing techniques.
How much do I need to pay for the astm e508 test?
Please contact us for a detailed quote for your astm e508 testing needs. Cost incurred to carry out different astm e508 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm e508?
The required number of samples or specimens should comply with the procedure given in the astm e508 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the astm e508 test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm e508 test?
The turnaround time for astm e508 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
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