Accession Number:

ADA030590

Title:

Irreversible Warmup Indicators.

Descriptive Note:

Final rept. 1 Aug 72-30 Jun 73,

Corporate Author:

ARTECH CORP FALLS CHURCH VA

Personal Author(s):

Report Date:

1973-07-01

Pagination or Media Count:

19.0

Abstract:

Irreversible warmup indicators indicating in the 10 -15 c region were developed and prototypes manufactured. The device comprises a gelatin capsule filled with an organic liquid which freezes at the temperature to be indicated. The liquid contains a dye and the capsule is maintained in contact with absorbent paper. When frozen the contraction of the liquid draws air in through the joint in the capsule and upon thawing a portion of the liquid is exuded through the joint, coloring the paper and thereby providing the desired indication. Practical tests, including attachment to blood bags, establish a reliability of better than 98. Author

Subject Categories:

  • Medical Facilities, Equipment and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE