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An angled, front-left view of the Auto Technology C Series corrosion test chamber, showing the integrated touch screen controller, air pressure gauge, and durable fiberglass construction.

Neutral Salt Spray Chamber – C Series Size 20

The Auto Technology C Series Size 20 is a fiberglass neutral salt spray chamber providing approximately 20 ft³ (594 L) of usable test volume. It is configurable for continuous neutral salt fog exposures under ISO 9227 NSS, JIS Z 2371 NSS, IEC 60068-2-11 Test Ka, and ISO 7253, with touchscreen controls, an integrated solution reservoir, conditioned atomizing air, and baffled fog distribution.

  • Supported Standards: ISO 9227 NSS, JIS Z 2371 NSS, IEC 60068-2-11 Test Ka, and ISO 7253
  • Exposure: Continuous neutral salt fog at 35°C with standard-specific solution, pH, collection-rate, and duration settings
  • Fog System: Venturi atomizer with conditioned compressed air and a baffled dispersion tower
  • Control System: 6-inch touchscreen for chamber temperature, bubble-tower temperature, fog operation, test timing, status, and alarms
  • Solution Storage: Integrated 60-gallon reservoir

This product is configured and marketed for neutral salt spray. The C Series platform can also be configured for acidic salt fog, CASS, selected ASTM G85 methods, simple fog/dry cycling, and condensing humidity when those capabilities are specified before purchase.

SKU: ASERIES20-ASTM-G85-1 Categories: ,

Description

The Auto Technology C Series Size 20 is a fiberglass neutral salt spray chamber providing approximately 20 ft³ (594 L) of usable test volume. It is configurable for continuous neutral salt fog exposures under ISO 9227 NSS, JIS Z 2371 NSS, IEC 60068-2-11 Test Ka, and ISO 7253, with touchscreen controls, an integrated solution reservoir, conditioned atomizing air, and baffled fog distribution.

  • Supported Standards: ISO 9227 NSS, JIS Z 2371 NSS, IEC 60068-2-11 Test Ka, and ISO 7253
  • Exposure: Continuous neutral salt fog at 35°C with standard-specific solution, pH, collection-rate, and duration settings
  • Fog System: Venturi atomizer with conditioned compressed air and a baffled dispersion tower
  • Control System: 6-inch touchscreen for chamber temperature, bubble-tower temperature, fog operation, test timing, status, and alarms
  • Solution Storage: Integrated 60-gallon reservoir

This product is configured and marketed for neutral salt spray. The C Series platform can also be configured for acidic salt fog, CASS, selected ASTM G85 methods, simple fog/dry cycling, and condensing humidity when those capabilities are specified before purchase.

The C Series Size 20 Neutral Salt Spray Chamber is a fiberglass corrosion chamber for continuous neutral salt fog testing under ISO 9227 NSS, JIS Z 2371 NSS, IEC 60068-2-11 Test Ka, and ISO 7253. It provides approximately 20 ft³ (594 L) of usable test volume and applies the temperature, salt concentration, collected-solution pH, fog collection rate, and exposure duration required by the selected standard.


Auto Technology C Series Size 20 fiberglass neutral salt spray chamber
C Series Size 20 neutral salt spray chamber with touchscreen controls, integrated solution storage, and a non-corrosive fiberglass cabinet.

Four Neutral Salt Spray Standards
One chamber configuration supports the closely related neutral exposures while preserving the operating limits of each standard.

Conditioned Fog Generation
A venturi atomizer, heated bubble tower, and baffled dispersion tower produce the continuous, freely settling fog required for neutral salt spray testing.

Integrated C Series Design
The molded fiberglass chamber, 6-inch touchscreen, and integrated 60-gallon solution reservoir form a self-contained laboratory system.

Request a Neutral Salt Spray Chamber Quote

Provide the required standard and revision, specimen dimensions, loading quantity, exposure duration, evaluation requirements, and available facility utilities.

Neutral Salt Spray Standards Supported by the C Series

These standards all expose specimens to continuous neutral salt fog at 35°C. They are similar enough to run in the same chamber, but they are not interchangeable reporting designations. The selected method determines the allowable salt concentration, pH measurement condition, collection-rate averaging period, specimen position, test duration, and chamber-verification procedure.

Standard Neutral exposure Primary application
ISO 9227 NSS Neutral salt spray using the ISO NSS conditions Metallic materials and metallic, conversion, anodic oxide, organic, or temporary protective coatings
JIS Z 2371 NSS Neutral salt spray closely aligned with ISO 9227 NSS Japanese material, coating, component, and product specifications
IEC 60068-2-11 Test Ka Continuous neutral salt mist Electrotechnical components, equipment, materials, and finishes
ISO 7253 Continuous neutral salt spray applied to coated test panels Paints, varnishes, and related organic coating systems

The governing specification still controls the test: These salt-spray standards establish the exposure environment. The product, material, customer, or qualification specification normally establishes the duration, specimen preparation, evaluation method, and acceptance criteria.

Neutral Salt Spray Exposure Profiles

The C Series maintains the common 35°C neutral salt-fog environment while the method-specific setpoints and operating checks are applied to the selected profile.

Profile Chamber Salt concentration Collected pH Fog collection per 80 cm²
ISO 9227 NSS 35°C ±2°C 50 g/L ±5 g/L 6.5–7.2 at 25°C ±2°C 1.5 mL/h ±0.5 mL/h, averaged over at least 24 h
JIS Z 2371 NSS 35°C ±2°C 50 g/L ±5 g/L 6.5–7.2 at 25°C ±2°C 1.5 mL/h ±0.5 mL/h, averaged over at least 24 h
IEC 60068-2-11 Test Ka 35°C ±2°C 5% ±1% by mass 6.5–7.2 at 35°C ±2°C 1.0–2.0 mL/h, averaged over at least 16 h
ISO 7253 35°C ±2°C Prepared at 50 g/L ±5 g/L; collected at 50 g/L ±10 g/L 6.5–7.2 1.0–2.5 mL/h, averaged over at least 24 h

The required standard revision and any governing product specification should be confirmed before the chamber is quoted or a test is programmed.

How the Neutral Salt Spray Profiles Differ

The exposure remains continuous neutral fog in every profile. The differences govern how the chamber is operated, checked, and documented.

ISO 9227 NSS

Uses a minimum 24-hour collection average and verifies cabinet corrosivity with specified steel reference specimens and mass-loss limits.

JIS Z 2371 NSS

Closely follows the ISO NSS atmosphere and includes its own provisions for apparatus verification, specimen arrangement, operation, and reporting.

IEC 60068-2-11 Test Ka

Applies the neutral mist to electrotechnical specimens in the operating position required by the relevant specification and provides a defined series of exposure durations and recovery steps.

ISO 7253

Focuses on coated test panels, requires duplicate determinations unless otherwise agreed, and permits a broader collected-solution concentration and fog-collection range.

No wet/dry cycle is hidden in these profiles: Each method calls for continuous salt fog during the prescribed exposure. Brief openings allowed for inspection or chamber service do not create a programmed dry period.

C Series Neutral Salt Fog Generation

Clean compressed air is humidified in the heated bubble tower before reaching the venturi atomizer. The resulting aerosol passes through the tall baffled dispersion tower and enters the exposure zone as a finely divided fog. The tower and baffle help prevent direct spray impingement and distribute freely settling fog through the specimen area.


Interior of C Series Size 20 neutral salt spray chamber with baffled fog tower
C Series Size 20 interior with corrosion-resistant construction and baffled fog distribution.

Neutral Salt Spray Hardware

  • Molded fiberglass chamber and cover
  • Venturi atomizer for continuous salt-fog generation
  • Heated bubble tower for conditioned atomizing air
  • Tall baffled dispersion tower
  • Fog collectors for monitoring fallout rate
  • Integrated 60-gallon solution reservoir
  • Corrosion-resistant specimen supports selected for the required load and exposure angle

Collection-rate compliance is measured, not assumed: Fog collectors placed in the exposure zone are used to verify that the chamber meets the collection range and averaging period required by the selected standard.

Neutral Salt Spray Controls

The 6-inch color touchscreen provides direct access to the chamber functions used for continuous neutral salt spray operation. The selected profile establishes the required setpoints and test timing; laboratory measurements confirm solution concentration, collected pH, and fog fallout.

Temperature Control
Independent control and display of the chamber exposure zone and heated bubble tower.

Fog Operation
Continuous fog control, test timing, manual functions, and chamber status from the touchscreen interface.

Alarms and Records
Operating alarms are shown on the controller. Optional data logging is available to record chamber operating data.

C Series Size 20 Neutral Salt Spray Chamber

The Size 20 provides laboratory-scale capacity for coated panels, plated components, fasteners, production parts, electrical hardware, and other corrosion specimens. Racking is selected around specimen dimensions, loading quantity, required orientation, and the need to preserve open fog circulation and unobstructed collection.


C Series Size 20 neutral salt spray chamber loaded with corrosion test panels
C Series Size 20 chamber loaded with corrosion test panels for salt-fog exposure.

Usable test volume

Approximately 20 ft³

Approximately 594 liters

Base chamber footprint

Approximately 95 × 43 in

Approximately 242 × 110 cm

Solution reservoir

Integrated 60 gallons

Final installed footprint depends on exhaust routing, service clearance, utility connections, and selected options.

Other Tests Available on the C Series Platform

This product page describes a C Series chamber configured for neutral salt spray. The same fiberglass chamber platform can be equipped and programmed for additional corrosion and humidity exposures when those requirements are identified before quotation.

Acidic Salt Fog and CASS
Configurations are available for ISO 9227 and JIS Z 2371 AASS and CASS conditions, including acidified solutions and the 50°C CASS exposure.

Selected ASTM G85 Methods
The C Series can be configured for Annex A1, A2, A3, and A5 using the required solution, fog, purge, soak, dry-off, and bubble-tower bypass functions.

Humidity and Fog/Dry Variations
Available configurations support condensing humidity, high-humidity exposure, and simple alternating fog/dry programs used by laboratory, customer, and product-specific procedures.

Specify the intended chemistries before purchase: Acidic and copper-bearing solutions require different operating procedures and can contaminate a chamber intended for neutral salt spray. When strict NSS control must be preserved, dedicated chambers may be appropriate.

Configure a Size 20 Neutral Salt Spray Chamber

Identify the required standard and revision, specimen dimensions, loading quantity, exposure duration, evaluation requirements, and available utilities so the chamber and racking can be configured for the program.

Request Configuration Assistance

Neutral Salt Spray Chamber FAQ

Which neutral salt spray standards can this chamber perform?

The C Series Size 20 can be configured for ISO 9227 NSS, JIS Z 2371 NSS, IEC 60068-2-11 Test Ka, and ISO 7253. The laboratory must operate and document the chamber according to the exact standard and revision being reported.

Does neutral salt spray include wet and dry cycling?

No. These methods use continuous neutral salt fog for the prescribed exposure period. A test requiring programmed fog, dry, humidity, immersion, or temperature transitions is a different corrosion exposure and should be specified separately.

Does the salt spray standard determine the test duration?

Usually, the governing product, material, coating, customer, or qualification specification establishes the exposure duration and acceptance criteria. IEC 60068-2-11 provides a defined selection of durations, while the other methods generally refer duration to the applicable specification or agreement.

Can this neutral salt spray configuration also run AASS or CASS?

AASS and CASS are not neutral salt spray profiles. They use acidified solutions, and CASS also adds copper chloride and operates at 50°C. Those requirements should be identified before quotation so the appropriate chamber configuration, materials, controls, and operating procedures are supplied.

How is fog delivery checked?

Collectors in the exposure zone measure the quantity of freely settling fog. The laboratory also checks collected-solution concentration and pH according to the selected standard. ISO 9227 and JIS Z 2371 additionally use reference specimens to verify chamber corrosivity.

What is the capacity of the C Series Size 20?

The Size 20 provides approximately 20 ft³ or 594 L of usable test volume. Its base chamber footprint is approximately 95 × 43 inches, excluding final exhaust routing and required service clearance.

What information is needed to quote the chamber?

Provide the required standard and revision, governing product specification, specimen material and dimensions, loading quantity, required orientation, exposure duration, evaluation requirements, and available electrical, compressed-air, water, drainage, and ventilation connections.

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