LimsPulse
Food & proximate analysis

Crude fibre analyser

Boils a defatted sample first in dilute acid and then in dilute alkali, filters it in fritted crucibles, and weighs the dried and ashed residue. The organic residue is reported as crude fibre.

  • Animal feed
  • Food & beverage
  • Agriculture
  • Spices
  • Academic research
Illustration of Crude fibre analyser
PREVENTIVE MAINTENANCE

Maintenance checklist

Daily / each use

  • Flush reagent lines with water
  • Check crucibles for cracks and blocked frits
  • Wipe up acid and alkali spills

Weekly

  • Check valves and tubing for leaks
  • Clean reflux condensers
  • Check vacuum level

Monthly / quarterly

  • Run a recovery check with a reference material
  • Check heater function and boiling time accuracy
  • Clean crucible frits thoroughly

Annual

  • Preventive maintenance by the supplier
  • Replace worn seals and tubing
SAFETY

Safety precautions

Before you work on the Fibre analyser
  • Hot sulphuric acid and sodium hydroxide solutions cause burns. Wear goggles, gloves and a lab coat.
  • Acetone and petroleum ether used for defatting are flammable. Keep away from the hot unit and furnace.
  • Use tongs and heat-resistant gloves for crucibles from the oven and furnace.
  • Make sure the reflux condensers have cooling water before boiling starts.
In LimsPulse · Calibration Management

Keep every Fibre analyser in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how