ashing ~ 1100°C

• preheated airflow – to avoid cooling & ensure good uniformity

• rapid air changes – to provide air/oxygen and carry fumes away

• heavy duty ceramic material construction - to ensure longevity

• elements covered by insulation – to ensure no contamination

ashing ~ 1100°C

• preheated airflow – to avoid cooling

• rapid air changes – to provide air/oxygen and carry fumes away

• heavy duty ceramic material construction - to ensure longevity

• elements covered by insulation – to ensure no contamination

AAF11/3 & 7 Design

ashing ~ 1100°C

• preheated airflow – to avoid cooling

• air changes – to provide air/oxygen and carry fumes away

• heavy duty SiC tiles covering elements to protect - to ensure longevity

AAF11/18

Element

SiC protective tile

AAF11/18 design

Air flow inlets

air is drawn between insulation layers, pre-heating incoming airflow

inlet

chimney

pre heating

AAF11/3 & 7

pre heating

Uniformity GraphAAF 11/7

Set Temperature 815°C (Date: 01.08.00)

600

650

700

750

800

850

900

0 50 100 150 200 250 300 350 400 450 500

Distance From Rear Hot Face (mm)

Pro

be

Te

mp

era

ture

(°C

)

TC-01 (Top Left)

TC-02 (Top Centre)

TC-03 (Top Right)

TC-04 (Centre)

TC-05 (Bottom Left)

TC-06 (Bottom Centre)

TC-07 (Bottom Right)

260mm@±10°C

365mm@±20°C

uniformity graph

The coloured lines indicate temp measurement and therefore show good uniformity from front (left) to rear (right) of chamber

ashing ~ applications

some typical examples:

• ashing enviromental samples ~ Yorkshire Water Co

• ashing paint samples ~ Nippon Paint Co

• ashing rubber samples ~ Avon Rubber Co

• ashing of food containers ~ Rexon Packaging Co

• After ashing the samples are analyised using IC or AA