Kjeldahl digestion flask made from BORO 3.3 borosilicate glass used for nitrogen and protein analysis in laboratory digestion procedures
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Kjeldahl Digestion Flask Borosilicate Glass

From $15.20 (Ex GST)
Kjeldahl digestion flask jointed borosilicate glass BORO 3.3 used for nitrogen analysis and acid digestion in laboratory setup by LabChoice Australia
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This product has multiple variants. The options may be chosen on the product page Select optionsThis product has multiple variants. The options may be chosen on the product page
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Kjeldahl Digestion Flask Jointed BORO 3.3 Glass

From $16.50 (Ex GST)

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Kjeldahl digestion flasks supplied by LabChoice Australia are engineered for reliable acid digestion during nitrogen and protein determination using the Kjeldahl method across analytical, teaching and industrial laboratories. Manufactured from premium BORO 3.3 borosilicate glass that complies with ISO 3585 and ASTM E438 Type 1 Class A standards, these flasks provide excellent thermal stability, chemical resistance and mechanical durability under prolonged heating with concentrated acids and catalysts. The robust construction supports consistent digestion performance while minimising risk of thermal shock or chemical attack.

Each Kjeldahl digestion flask features a long neck profile designed to reduce acid loss and prevent sample bumping during vigorous boiling. Precision formed rims or ground joints are produced in accordance with ISO 383 and ASTM E676 specifications where applicable, ensuring compatibility with digestion units, distillation assemblies and ammonia recovery systems. Uniform wall thickness and high clarity BORO 3.3 glass allow clear observation of digestion progress, colour change endpoints and reaction stability throughout the heating cycle.

Kjeldahl digestion flasks are widely used for nitrogen determination in food and feed analysis, fertiliser testing, soil analysis, water testing, pharmaceutical quality control and academic chemistry laboratories. They are suitable for use with sulfuric acid digestion, copper or selenium catalysts and automated or manual Kjeldahl systems. The flask geometry supports efficient heat transfer and safe handling during high temperature digestion stages.

All Kjeldahl digestion flasks supplied by LabChoice Australia undergo ISO 9001 aligned quality control inspection. This includes dimensional accuracy verification, wall thickness measurement, thermal shock testing, surface finish inspection and clarity evaluation. Each flask is validated for full compliance with ISO 3585 and ASTM E438 borosilicate performance standards, and all applicable jointed interfaces meet ISO 383 and ASTM E676 interchangeability requirements. These rigorous quality measures ensure safe, reliable and long lasting performance for laboratories conducting precise Kjeldahl digestion and nitrogen analysis.