– Our Salt Spray chambers are built internally and externally with non-metallic composite material (US PATENT 10371623). Therefore, no metallic parts are inside the chamber, ensuring that galvanic corrosion does not occur, and test results are not distorted.       

– The internal chamber heating occurs through a water jacket surrounding the entire chamber, providing great temperature stability and homogeneity. Our non-metallic composite (US PATENT 10371623) was specially developed to increase thermal conductivity. With the internal chamber constructed from this composite, and the water jacket fully surrounding and indirectly heating it, excellent test results are achieved. The external cabinet is made of fiberglass with thermal insulation, making our equipment “GREEN”, thus offering energy and cost savings for our clients.

– Lid angled at 100 degrees, made from high-resistance plastic to prevent scratching by salt crystals (acrylic can be scratched by salt crystals, leading to dripping onto the samples, which is undesirable). If the user requires sample visibility (note: during testing, sample visibility is impossible), our solution includes side windows in the lid and lateral lighting of the test chamber, thereby avoiding dripping onto the samples.

Lid with optional side windows, to prevent dripping points over the test samples. 

– To avoid result distortions, a minimum test chamber volume of 400 liters is recommended (ISO 9227, not including lid volume).

– We use atomization nozzles that follow the Venturi principle and a fog distribution tower with a cone exactly as described in the standards, ensuring that the fog flow is evenly distributed throughout the test chamber from top to bottom, with fog flow perpendicular to the samples. The fog exhaust and drain of the precipitated solution during the test are located at the bottom of the chamber (ASTM B117), ensuring uniform fog collection all over the chamber. Therefore, side wall exhaust is not possible, as it results in the opposite effect, with irregular fog distribution that distorts test results.

– Electrical panel with UL label, splash and dust protection. 

– Bubble Tower (Air Saturator Tower or Humidifying Tower) made of stainless steel, automatic.

– All electrical components with UL label.

– Emergency stop switch for instant shutdown, preventing accidents.

– Automatic solution tank.

– Lock-type switch that allows shutdowns for preventive/corrective maintenance.

– A safety relay that interrupts electrical circuits whenever it detects faults or risks of accidents.

– Lid open/close sensor: when the lid is opened for sample inspection during testing, spraying and heating of the chamber and saturator are automatically disabled, saving energy and increasing user safety. 

–  A control panel with industrial color LED indicators, providing visual and audible signals that indicate machine status and respective processes.

– The solution tank, deionized water in the saturator tower, and water jacket levels are front-facing and easy for the operator to view.

Solution, Bubble Tower, and Water Jacket levels front-facing for easy operator viewing

Optional Accessories:

– A pH meter to measure the pH of the solution to be atomized and the mist collected during the test.

– Conductivity meter to measure the conductivity of deionized water (ASTM D1193 Type IV).

– A densimeter to measure the concentration of NaCl in the prepared solution.

– Bucket with pure Salt (NaCl), according to ASTM B117.

– Data acquisition – Supervisory.

– Hermetic DEI with green LED for water in accordance with ASTM D1193 Type IV, and red LED for water outside the specifications of ASTM D1193 Type IV.

– Support for fixing screws. 

– Grid-type support to hold test samples.

– Access port for cable passage.

– Field Evolution Certificate.

– CSA Certificate (Canada).

– Condensed humidity mode.

– Drying mode at the laboratory’s temperature and relative humidity.

– Inclined rack for screws.

– Internal lighting.

– Gas scrubber.

– Condensate pump.

– Inclined rack for coupons. The number of coupons per rack depends on the 15° to 30° inclination and the height of the coupons, as the distance between them must meet the rule of no dripping of corrosion products from one coupon onto another.

– Other options available upon request, contact us at sales@equilamna.com or phone 754.900.7816.

Summary of Neutral Salt Spray (Fog) Operation (ASTM B117 – NSS ISO 9227 – NSS JIS Z 2371):

Test samples are placed inside the test chamber according to technical standards or customized company standards. They are exposed to controlled high-humidity saline mist with neutral saline solution (pH 6.5 to 7.2) at a temperature of 95°F (35°C) for a specific period, as specified by industry standards. (ASTM B117 – NSS ISO 9227 – NSS JIS Z2371)

Summary of Copper-Accelerated Acetic Acid Salt Spray Operation – CASS Test (Acid Test) (ASTM B368 – CASS ISO 9227 – CASS JIS Z 2371):

Test samples are placed inside the test chamber according to technical standards or customized company standards. They are exposed to controlled high-humidity saline mist with copper-acetic saline solution (pH 3.0 to 3.3) at a temperature of 120°F (49°C) for specific periods, as specified by industry standards. (ASTM B368 – CASS ISO 9227 – CASS JIS Z 2371)

Summary of Acetic Acid Salt Spray Operation – AASS Test (Acid Test) (ASTM G85 A1 – AASS ISO 9227 – AASS JIS Z 2371):

Test samples are placed inside the test chamber according to technical standards or customized company standards. They are exposed to controlled high humidity saline mist with acetic acid saline solution (pH 3.0 to 3.3) at a temperature of 95°F (35°C) / 122°F (50°C) for specific periods, as specified by industry standards. (ASTM B368 A1 – AASS ISO 9227 – AASS JIS Z 2371)

After this exposure period, the samples will be evaluated according to technical standards that determine the degree of oxidation and/or type of corrosion, as well as any subsequent evaluations.