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PYREX® Round Bottom Kjeldahl Flask with Long Neck

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Quality Certificate

Of all the common laboratory test methods, the Kjeldahl method for determining nitrogen subjects the boiling flask to the most severe thermal and chemical abuse. These Kjeldahl flasks, specially styled, have tooled finished necks for extra strength and uniform stopper fit. Wall thickness is controlled to offer the optimum balance between thermal shock and chemical resistance. Can be used in ASTM E-258 procedure. Care must be taken to ensure the bottoms of the flasks do not come in contact with the heating elements. Most Kjeldahl equipment manufacturers have ring supports for this purpose.

Reference: ASTM E-1377.

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Products

Product Number	Product Name	Qty./Pk	Qty./Cs	Brand	Price	Unit Size
5420-100	PYREX® 100 mL Round Bottom Kjeldahl Flask with Long Neck	6 / Pk	24 / Cs	PYREX®	N/A	per case
5420-300	PYREX® 300 mL Round Bottom Kjeldahl Flask with Long Neck	6 / Pk	24 / Cs	PYREX®	N/A	per case
5420-500	PYREX® 500 mL Round Bottom Kjeldahl Flask with	6 / Pk	24 / Cs	PYREX®	N/A	per case
5420-800	PYREX® 800 mL Round Bottom Kjeldahl Flask with Long Neck	6 / Pk	18 / Cs	PYREX®	N/A	per case