An ashing furnace is a specialized type of chamber furnace designed specifically for the process of ashing.
Ashing is the process of expelling organic material from a sample before it is analyzed.
This process involves the complete combustion of the sample to yield accurate results.
5 Key Points to Understand
1. Purpose of Ashing Furnaces
Ashing furnaces are used to quantify the change in weight of a sample as various components are burned away.
2. Design Features
They are designed to promote a high level of airflow through the chamber to aid sample combustion and remove smoke created during processing.
The furnace must be chosen with sample size and potential contamination risk in mind.
3. Components of an Ashing Furnace
The typical ashing furnace has a heating element in an enclosure with a scale attached to weigh the sample before, during, and after it is burnt.
It is relatively small in size and holds a chamber, heating element, heat plate, and chamber threshold, all of which can be easily replaced.
4. Operation and Control
Ashing furnaces employ controlled airflows and high-temperature heating elements, making them well-suited to burning samples in air at controlled rates.
This helps to precisely calculate the volume of incombustible compounds present in the sample.
The heating chamber atmosphere must be meticulously controlled by the use of air metering and exhaustion to allow for numerous air changes per minute.
5. Importance of Selection
Selecting the correct furnace when ashing is important to ensure accurate and efficient results.
A specialized ashing furnace is the most appropriate equipment for carrying out the ashing process.
These furnaces are designed to promote a high level of airflow, which aids in sample combustion and smoke removal.
Incomplete combustion can lead to issues and inaccuracies in the analysis.
Continue exploring, consult our experts
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