Labconco Two and Six-Place (Macro) Kjeldahl Distillation Systems 2125603 - Manual (Page 6)

Chapter 1: Introduction
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General Description
Labconco’s Two and Six-Place (Macro) Kjeldahl Digestion Systems are
designed to facilitate the determination of Total Nitrogen content within
materials such as feeds, grains, soils, fertilizers, plant tissue, water, organic
wastes, and food products. The expression ‘Macro’ identifies the size of
sample vessel and the sample size that can be used with this equipment.
Other Kjeldahl systems are available, which use smaller sample vessels and
require smaller sample sizes. This apparatus can be used for the digestion of
all types of nitrogen containing samples. The Two and Six-place Digestion
Systems can be used to perform a standardized Macro-Kjeldahl Nitrogen
Determination Method.
The Kjeldahl Digestion Systems are not enclosed, excess heat and personnel
safety during the digestion reaction must be considered when selecting an
installation location. The digestion process involves boiling concentrated
sulfuric acid at high temperatures. Labconco recommends placing Two-Place
Digestion System inside a chemical fume hood for safety. Labconco
recommends locating the Six-Place Digestion System in a well ventilated
room away from normal laboratory operations.
2128401 & 2125601 Two-Place and Six-Place Kjeldahl Digestion Systems