american gas & chemical co Immersit Immersion Leak Testing

american gas & chemical co. ltd.
D E T E C T I O N T E C H N O L O G Y

Immersion Leak Testing

By lowering the surface tension and increasing the wetting ability of water, a leak in a pressurized immersed vessel will generate a steady stream of tiny bubbles instead of an occasional larger bubble as with untreated water. Small leaks will produce bubble indications that are impossible with normal water. The CIM series will not foam, will not support bacteria growth and are formulated to prevent corrosion. Although their use is recommended with deionized water, they are chelated to be compatible with hard water. Immersit additives are biodegradable.


Immersion testing of pressurized vessel BEFORE the addition of IMMERSIT. Occasional bubbles will break towards the surface.	Immersion testing of pressurized vessel AFTER the addition of IMMERSIT. A steady stream of small bubbles will break towards the water surface

Instructions:
Add IMMERSIT to deionized water in testing tank in ratio of 1 to 25% IMMERSIT.
By varying the concentration of IMMERSIT and the pressure differential across the test piece, the minimum detectible leak rate can be changed. If the test piece cannot be pressurized, it is possible to warm the fluid to make it more sensitive - however be sure not to let the liquid boil as that will cause bubbles and false leak indications.

Sensitivity At 25^oC using nitrogen as the pressurizing gas with 18 psig of pressure the minimum leakage rate immediately apparent:
% Immersit	Leakage Rate
0	1x10^-3 std.cc/sec
1	1x10^-4 std.cc/sec
5	1x10^-5 std.cc/sec
25	1x10^-6 std.cc/sec

IMMERSIT Formulas:

IMMERSIT CIM150

Recommended for aluminum, stainless steel and titanium. Temperature range 5^oC-25^o C

IMMERSIT CIM150A

Includes a chromate inhibitor to prevent rust formation on iron. Temperature range 5^oC-25^o C

IMMERSIT CIM200

Recommended for aluminum, stainless steel and titanium. Temperature range 5^oC-85^o C

IMMERSIT Available Packaging:
*phone orders only
Code -05 Gallon Bottles

*Code -06 Five Gallon Pails

*Code -07 55-Gallon Drums

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