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C, S determination in coal samples

閱讀：378 發(fā)布時(shí)間：2015-05-12

Suitable Analyzers

· CS-580 series

· CS-2000 (resistance furnace)

Used Accessories

· 90160 Disposable porcelain boats

· Suitable calibration material from NIST or other

Settings

· Furnace Temperature: 1350 °C

· Comperator level: 20

· minimum analysis time: 60 seconds

· maximum analysis time: 180 seconds

Sample preparation

For best results prepare the sample down to a particle size about 200 μm.

Dry the sample till mass constancy at 105 °C (in minimum for 1 Hour).

Procedure

n Prepare and clean the ELTRA analyzer (f.e. exchange Anhydron, Sodium

hydroxide) and set the furnace temperature to 1350 °C

n Run in minimum three warm up samples (f.e. ELTRA 92511-3020) with a

medium sample weight of 200 mg until the results are stable

n Calibrate the system with a suitable calibration material (from NIST or

other):

(1) Weigh in a sample weight of 200 mg in the 90160 porcelain boots

(2) Start analysis (F5 Button)

(3) Load the sample into the furnace and wait until the PC calculates

results

Repeat Step (1) – (3) in minimum for three times; mark the results and use

the calibration function in the software

-> Analyze the unknown samples.