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Matheson Primary Standards are the most accurate, most dependable mixtures w e c a n produce — and we are the most experienced gas mixers around. Naturally they cost more t h a n other calibration mixtures. But, Primary Standards can save far more than their additional cost by minimizing errors and reducing overall costs. Each Primary Standard is prepared by weight on a high load, high sensitivity analytical balance. This procedure circumvents the non-ideal behaviour of gases. Certified accuracy capabilities to ± 0.001 m o l e % , d e p e n d i n g upon the molecular weight of the constituents.
with this expensive mixture
Can you afford to use less than a Primary Standard mixture in your research o r analytical project? Write or phone Matheson, P.O. Box 85, East Rutherford, N.J., or your nearest Matheson b r a n c h , for a quotation on your gas requirements.
M A T H E S O N GAS P R O D U C T S A Division of Will Ross. Inc. East Rutherford, N. J . ; Cucamonga. Calif.: Gloucester. Mass.: Joliet. III.: LaPorte, Texas: Morrow. Ga.: Newark, Calif.: Whitby. Ont.
Matheson Gas Products
Primary Standard Certified Contents 3.00 t= 0 01% Methane 1 . 0 1 t±= 0 01% E t h a n e 1 . 0 0 ^ 0 01% Propane
0.505 ^ 0.001% isobutana 0.503 ^= 0.001% Butane Balance Hydrogen
Pressure 2000 p . s . i . g .
Cylinder No. 72563
Date 7-1-63
The gas mixture contained in this cylinder has been prepared by weight. It is the most accurately defined gas
This Cylinder is fhe property of
mixture available today.
Matheson Gas Products
The techniques used in preparing this mixture are based upon Matheson's advanced technology and continuing research. Special precautions must be observed to convey this gas to the use point without contamination. Matheson's No. 18, 19, and 3500 high purity transfer regulators are specifically recommended.
DO NOT REFILL
Certified by J . M. Reference 7-1
M
M A T H E S O N GAS
PRODUCTS
A Division of Will Ross, Inc. East Rutherford, N. J.; Cucamonga, Calif.; Gloucester, Mass.; Joliet, IK.; LaPorte, Texas; Morrow, Ga.; Newark, Calif.; Whitby, Ont.
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ANALYTICAL CHEMISTRY
