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SALT SPRAY CORROSION TEST

SALT SPRAY CORROSION TEST CHAMBERS :: ASTM B 117/ASTM G 85 (ALL ANNEX)/ ASTM D 2247

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Model Code:SEWMC01(100 lit.assembly)
SEWMC02(200 lit.assembly)
SEWMC03(400 lit.assembly)

The ASTM B117 test apparatus for salt spray testing corrosion behavior of coatings & paints under salt spray conditions with specified temperature &humidity conditions. The apparatus provides controlled corrosive environment. The test introduces a spray in close chamber where specimens are exposed at specific locations and angles. The concentration of the NaCl solution ranges from 3.5 to 20%. Hot, humid air is created by bubbling compressed air through a bubble (humidifying) tower containing hot de-ionized water. The hot, humid air and the salt solution are mixed at the nozzle; it is atomized into acorrosive fog. This creates a 100% relative humidity condition in the exposure zone. This helps in producing relative corrosion resistance information for specimens of metals and coated metals exposed in the test chambers.

APPARATUS CONSIST OF :

Fog / spray chamber	FRP inner body, lid of acrylic glass, sample racks for specimen, natural mist accumulation.
Humidifying tower	SS ASSI 316 mfg. heating arrangement with air relief valve, automatic water fill system.
Salt solution tank	Acrylic material mfg., storage and supply of salt solution.
Supply pipes	Used to supply pressurized air to 4-way connector and tap water to humidity tower.
Control panel	PID type, digital temperature indicator cum controller, set point, relays, switches.
Framework	Sturdy framework, made from powder coated GI with rust proof.
Recommended spare	Dry air supply (air compressor), De mineralized water plant, ASTM 12C thermometer, etc.