Model AAF up to 1100°C
The extremely robust AAF 11/3 and 11/7 units, designed especially for ashing, have a ceramic muffle offering maximum protection of the heating elements against chemical or mechanical damage. They are especially suitable for ashing of coal, food and other hydrocarbon materials. The use of a low chamber height in conjunction with a high flue results in 4-5 air change cycles per minute, ensuring that there is always enough oxygen for fast and complete combustion. To ensure that the samples are not chilled by the air changes, the air is pre-heated before entry to the chamber.
The AAF 11/7 meets with the following standards: BS 1016 Part4, ISO 344 and 1171, ASTM D2361, D2795 and D31784. The AAF 11/18 has protected elements behind ceramic plates and with the use of a metal rack the chamber capacity can be doubled.