Heat-shrinkable plastic tubing can be quickly sealed around a metal tensile test specimen and used as a jacket for any compatible liquid

Leger, L. J.

Spiker, I. K.

English

NASA Technical Reports Server

Load 
Tensile Specim 
Test Liquid
Heat-Shrunk Tubing 
Load 
-Patent status: 
No patent action is contemplated by NASA. 
Source: L. J. Leger and 1. K. Spiker 
Manned Spacecraft Center 
(MSC-13195) 
October 1969
	 Brief 69-10495 
NASA TECH BRIEF	
A A 
NASA Tech Briefs are issued to summarize specific innovations derived from the U.S. space program, 
to encourage their commercial application. Copies are available to the public at 15 cents each 
from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151.. 
-- - - 
Heat-Shrinkable Jacket Holds Fluid in Contact
with Tensile Test Specimen 
The problem: 
To devise a simple, effective means of surrounding 
a metal tensile test specimen with a specified liquid. 
The method of attaching the jacket for containing the 
liquid must not introduce any contaminants into this 
liquid. The jacket itself, as well as any adhesive used 
to bond and seal the jacket to the test specimen, must 
be resistant to chemical attack by the liquid. 
.	 The solution: 
A piece of heat-shrinkable plastic tubing can be 
quickly sealed around the metal test specimen and 
used as a jacket for any compatible liquid. 
How it's done: 
The tubing material is selected to be compatible 
with the liquid to be contained in the tubing. One end 
or both ends of the tubing, of a diameter to fit the 
tensile specimen, are sealed around the metal with 
a hand-held heat gun. If only one end of the tubing is 
heat-sealed, liquids can be poured directly into the 
open end, which is then heat-sealed around the metal. 
If both ends of the tubing are sealed around the metal, 
liquids (or gases) may be introduced through the wall 
of the tubing by means of a hypodermic syringe. The 
latter is particularly useful when toxic or flammable 
fluids must be enclosed around the test specimen. 
Note: 
No further documentation is available. Inquiries may 
be directed to: 
Technology Utilization Officer 
Manned Spacecraft Center 
Houston, Texas 77058 
Reference: B69-10495
Category 05 
This document was prepared under the sponsorship of the National 	 Government assumes any liability resulting from the use of the 
Aeronautics and Space Administration. Neither the United States 	 information contained in this document, or warrants that such use 
Government nor any person acting on behalf of the United States 	 will be free from privately owned rights.
https://ntrs.nasa.gov/search.jsp?R=19690000476 2020-03-16T18:02:42+00:00Z


Heat-shrinkable jacket holds fluid in contact with tensile test specimen

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