Standard Ashing Furnaces for ash tests

The range of AAF ashing furnaces is designed specifically to provide optimum ashing conditions to ensure complete combustion of the sample

The AAF 11/3 & AAF 11/7 ashing furnaces provide a continuous flow of preheated air through the chamber, and are designed to comply with ISO 1171:2010, ASTM D3174-04: 2010 and ASTM D4422. 

Features:

• 1100°C maximum operating temperature
• Carbolite Gero 301 single ramp to setpoint & process timer
• A large floor area allows for a large number of samples
• Ideal for ashing foods, plastics, coal & other hydrocarbon materials
• Designed to comply with ISO 1171:2010, ASTM D3174-04: 2010 and ASTM D4422
• Wire elements are protected from chemical & mechanical damage by a hard-wearing alumina-based liner
• 4-sided heating (2 sides, roof & hearth)
• Air inlet & tall chimney give airflow of 4 to 5 changes per minute
• Low chamber height holds airflow close to samples for optimum combustion
• Powerful elements with graded winding compensate for heat loss due to high airflow
• Preheating of air before it enters the chamber gives excellent uniformity
• Sample tray and loading handle

Options (specify these at time of order) 

• 2 phase electrical supply for AAF 11/7
• Over-temperature protection (recommended to protect valuable contents & for unattended operation)
• A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications

Airflow in AAF 11/3 and AAF 11/7
A tall 50 mm diameter chimney (AAF 11/7),or 35 mm on AAF 11/3, pulls the air through the chamber Pre-heated air enters the chamber after circulating around the outside of the chamber Air inlet