Multisample dynamic headspace sampler

Details Multisample dynamic headspace sampler Multisample dynamic headspace sampler

1997-07-14

1999-01-12

Raevis, Robert

Measuring and testing

Surface and cutting edge testing

Roughness

G01N 714

Patent

active

058593560

ABSTRACT:
Method and apparatus for collecting a large number of outgas samples at the same time. Specimens to be tested for outgassing are placed in throw-away widemouth bottles, and the bottles are placed in cups provide in a heating block. A custom made cap is fastened to each bottle using an O-ring. Each cap is provided with an outgassing sample collecting tube. A source of pure gas such as nitrogen or helium is connected by way of a pressure regulator and a hydrocarbon filter to a manifold. Each of the caps on each bottle is coupled to the manifold by way of a metering valve. An adsorbent is placed in each collecting tube. The gas pressure is set to between 10 and 15 psi. The flow through each collecting tube is set to a predetermined level by adjusting its metering valve and measuring the flow at the exit of the collecting tube using a flowmeter. The heating block is heated by means of a thermal tape used in conjunction with a power supply and a thermocouple inserted into a hole in the heating block. The samples are heated and held at an elevated temperature for a predetermined length of time. After the outgassing test is completed, the collecting tubes are desorbed and analyzed with the appropriate instrumentation.

REFERENCES:
patent: 4489593 (1984-12-01), Pieters et al.
patent: 4926356 (1990-05-01), Kucera et al.

Affiliated with

Also associated with

Rating

Multisample dynamic headspace sampler does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multisample dynamic headspace sampler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multisample dynamic headspace sampler will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1518581