Measuring and testing – Sampler – sample handling – etc. – With constituent separation
Patent
1997-07-02
2000-10-03
Noland, Thomas P.
Measuring and testing
Sampler, sample handling, etc.
With constituent separation
G01N 122
Patent
active
061257095
ABSTRACT:
The invention relates to a sampling tube comprising a glass tube (2) with two closed ends (3), the sampling tube (1) being filled, at least over a portion of the length of the tube, with an adsorption material (4), the adsorption material (4) being confined between two gas-permeable plugs (5). According to the invention, the plugs (5) are manufactured from completely inert material and no non-inert material is present in the sampling tube. The invention further relates to a sampling tube whose ends (3) are closed off with sealing caps (6) which are manufactured from TEFLON.RTM., the sealing caps (6) comprising an end portion (7) and a cylindrical stopper (8) integrally connected therewith, which stopper (8), at least locally, has an external diameter receivable with a proper fit in the interior of the glass tube (2), the end portion (7) having a diameter greater than the internal diameter of the glass tube (2). The invention further describes a method for manufacturing such sampling tubes.
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Wyatt, J.R. et al., "Sampling of Submarine Atmospheres," Journal of Aerospace. 104: 1105-1110 (1995). month not given.
Patent Abstracts of Europe Abstract of EP 00225520A2 "Test Tube" Kretchmer, dated Jun. 16, 1987.
Noland Thomas P.
SGT Exploitatie B.V.
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