Leak detection additives for use in heating, ventilating, refrig

Details Leak detection additives for use in heating, ventilating, refrig Leak detection additives for use in heating, ventilating, refrig

1997-03-26

2000-06-06

Larkin, Daniel S.

Measuring and testing

With fluid pressure

Leakage

8528, 250302, 252 68, 25230116, 252964, G01M 320

Patent

active

060704543

ABSTRACT:
A leak detecting dye for use in heating, ventilating, air conditioning, or refrigeration systems employing a dye powder form of dyes such as naphthalimide, perylene, coumarin, and thioxanthane.
The dye is formulated into a useful liquid or paste mixture by mixing the dye powder (or dye in granular or crystalline form) with a solvent, a lubricant, or a refrigerant. In liquid or paste form, it is suitable for introduction into the system.

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