Indicator for detecting residual ethylene oxide

Details Indicator for detecting residual ethylene oxide Indicator for detecting residual ethylene oxide

1985-11-18

1987-07-07

Lacey, David L.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 57, 422 58, 422 87, 436 1, 436 93, G01N 3122

Patent

active

046786406

ABSTRACT:
An indicator for detecting residual ethylene oxide comprising a substrate impregnated with a solution of 4-(4-nitrobenzyl)pyridine and an envelope of the substrate which is at least partially transparent and has low permeability to gaseous ethylene oxide is provided, the envelope being preferably made of a transparent plastic film. With the indicator, an amount of ethylene oxide remaining in various medical instruments, etc. may be estimated by the naked eye since the color of the indicator changes step by step in the course of the release of residual ethylene oxide.

REFERENCES:
patent: 2998306 (1961-08-01), Huyck et al.
patent: 3627469 (1971-12-01), Cheng
patent: 3738811 (1973-06-01), Cheng
patent: 3992154 (1976-11-01), Whitbowine et al.
patent: 4094642 (1978-06-01), Sumimoto et al.
patent: 4138216 (1979-02-01), Larson et al.
patent: 4195058 (1980-03-01), Patel
patent: 4436819 (1984-03-01), Manning
patent: 4495291 (1985-01-01), Lawton
Brewer, et al., "Biological-Chemical Indicator For Ethylene Oxide Sterilization"-Journal of Pharmaceutical Science, vol. 55, No. 1, pp. 57-59 (1961).

Affiliated with

Also associated with

Rating

Indicator for detecting residual ethylene oxide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Indicator for detecting residual ethylene oxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Indicator for detecting residual ethylene oxide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1661884