CORROSION TEST CHAMBER SELECTION GUIDE

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Selecting the right salt spray chamber or cyclic corrosion test system starts with understanding the environmental stresses required by your test standard: continuous salt fog, humidity cycling, temperature ramps, SO₂ exposure, mixed flowing gas, or long-term immersion. This guide provides a simple overview of the chamber types we manufacture and the practices they support, helping you match your requirements to the correct system. Whether you're running ASTM B117, ISO 9227, SAE J2334, GMW 14872, or specialized multi-gas testing, this page explains the capabilities at a glance. Our team is here to guide you to the right chamber.

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Looking for a chamber by a specific test standard? Use our Corrosion Test Chamber Standards Search to quickly find chamber types associated with the standards you run.
Auto Technology Chamber Comparison

C, M, A & X Series Chamber Capabilities

Compare the controls, environmental capabilities, chamber design, and monitoring features available across Auto Technology C, M, A, and X Series corrosion test chambers.

Feature / Capability C Series M Series A Series X Series
Controls
Basic Controls ●
Touchscreen Controls ● ◐ ●
Advanced Computer Controls ●
Environmental Capabilities
Fog ● ● ● ●
Spray ◐ ◐
Basic Humidity Control ◐
Advanced Humidity Control ◐
Freezing ◐
Immersion ◐
Chamber Design
Fiberglass Construction with Immersion Heating ● ● ●
Steel Construction with Water-Jacket Chamber Heating ●
●Included / Standard ◐Optional / When Equipped

Scroll horizontally to view all chamber series on smaller screens.

Salt Fog & Modified Salt Fog Chambers (ASTM B117, ASTM G85, ISO 9227, JIS Z 2371)
C SERIES
Exposure Zone Temperature 1
Ambient 38°C 70°C
Exposure Zone RH 2
<30% 95-100%
Fog
1 Chamber is designed for stable ambient, dwell, and dry states
2 Chamber is designed for stable dry and high humidity states
C Series fiberglass salt spray chamber and cabinet
Purpose
Dedicated fiberglass platform for ASTM B117 and ASTM G85 Annexes A1, A2, A3, and A5, plus equivalent salt spray, acidified salt fog, SWAAT, and cyclic fog/dry procedures.
Example Standards
ASTM B117; ASTM G85 A1, A2, A3 & A5; ISO 9227 NSS / AASS / CASS; JIS Z 2371; ASTM B368; IEC 60068-2-11; IEC 60068-2-52; MIL-STD-810 Method 509; and related equivalent or OEM salt-fog procedures.
Differentiating Features
Fiberglass with immersion heating construction
Focused B117 / G85 salt-fog and cyclic capability
Simple operation with fewer advanced environmental systems
Data Logging
Optional logging of chamber temperature, bubble-tower temperature, and wet-bulb temperature when equipped.
M SERIES
M Series legacy steel salt fog and humidity test chamber
Purpose
Continuous exposure with industry-leading thermal stability for qualification labs.

Can be accessorized for added flexibility and transition support.
Example Standards
ASTM B117, ASTM G85 A1, A2*, A3*, A4*, ASTM B368 (CASS)*, ISO 9227, JIS Z 2371, MIL-STD-810 509
Differentiating Features
Tightest thermal uniformity
Ideal for long-term data consistency
Precision water-jacket heating
Data Logging
Optional logging of chamber temperature, bubble-tower temperature, wet-bulb temperature, and bubble-tower pressure.
Cyclic Corrosion Test Chambers (SAE J2334, GMW 14872, ASTM G85, ISO 11997, Ford CETP 00.00-L-467, Volvo VCS 1027, and OEM Cyclic Corrosion Standards)
A SERIES
Exposure Zone Temperature 1
Ambient 38°C 70°C
Exposure Zone RH 2
<30% 100%
Spray 1
Fog
1 When properly equipped
2 Limited RH transitions are possible when properly equipped
A Series cyclic corrosion test chamber
Purpose
Automated cyclic environments — temperature, humidity, and fog transitions.
Example Standards
SAE J2334, ASTM G85, ISO 11997-1 (Basic Cycles), cyclic humidity tests
Differentiating Features
Programmable cyclic capability
Runs most non-OEM cycles
Expanded humidity/temp ranges
Data Logging
Optional logging of chamber temperature, bubble-tower temperature, wet-bulb temperature when equipped, and bubble-tower pressure.
X SERIES
Exposure Zone Temperature
-30°C1 70°C2
Exposure Zone RH 1
<30% 100%
Immersion 1
Recirc. Spray 1
Fog
1 When properly equipped
2 Higher temperatures are possible when properly equipped
X Series advanced cyclic corrosion chamber
Purpose
Advanced cyclic profiles with rapid ramps, deep cooling, and full climate control.

Fully customizable.
Example Standards
GMW14872, Ford CETP L-467, JASO M609, VCS 1027149, CS.00056, advanced OEM cycles
Differentiating Features
Fast temperature transitions
Optional mechanical cooling and deep-cold capability
Full PC control with advanced climate management
Data Logging
Complete logging of chamber temperature, bubble-tower temperature, wet-bulb temperature when equipped, bubble-tower pressure, relative humidity, and ambient laboratory temperature.
Side-by-Side Chamber Comparison

Competitor Chambers vs. Auto Technology Chambers

Compare common chamber capabilities, included features, and optional configurations across competitor SSP, CCT, and CRH platforms and Auto Technology C, M, A, and X Series chambers.

Feature / Capability Competitor Chambers Auto Technology Chambers
SSP CCT CRH C Series M Series A Series X Series
Two or more chamber sizes available ● ● ● ● ● ● ●
Four or more chamber sizes available — — — — ● ● ●
Performs Prohesion and other Fog/Dry-Off cycles ● ● ● ● — ● ●
Performs conventional continuous salt fog ● ● ● ● ● ● ●
Performs cyclic automotive tests requiring 95–100% humidity — ● ● ● — ● ●
Performs cyclic automotive tests requiring variable humidity control — — ● — — ● ●
Internal salt solution reservoir ● ● ● ● — ● ●
Internal chamber heaters for fast temperature cycling ● ● ● ● — ● ●
Corrosion-free reinforced fiberglass construction ● ● ● ● — ● ●
Simple user interface for easy programming ● ● ● ● ◐ ● ●
Controller with self-diagnostics, error messages, and safety shutdown ● ● ● ● — ● ●
Automatic data logging and tester diagnostics via Ethernet/USB ● ● ● ◐ ◐ ◐ ●
Salt fog via variable-speed peristaltic pump ● ● ● — — — —
Salt fog via Venturi atomizer — — — ● ● ● ●
Dry-Off: controlled temperature with forced air ● ● ● ● — ● ●
Dwell: controlled temperature without forced air ● ● — ● ● ● ●
Viewing window and interior chamber light ● ● ● ● ● ● ●
Programmable ramp times — — ● — — — ●
Shower module with self-cleaning spray nozzles — — ● — — — —
Adjustable multipoint spray system — — — — — ◐ ◐
Top-mounted swaying shower bar — — ◐ — — — ◐
Performs automotive tests with fast temperature ramp specifications — — ◐ — — — ◐
Wall Wash Kit for compliance with Renault ECC1 — — ◐ — — ◐ ◐
Specimen panel racks, hanging rods, and mounting grates ◐ ◐ ◐ ◐ ◐ ◐ ◐
Corrosion test coupons for GMW 14872, ASTM B117, ISO 9227, etc. ◐ ◐ ◐ ◐ ◐ ◐ ◐
External fog collection cylinders ◐ ◐ ◐ — ◐ ◐ ◐
Access port ◐ ◐ ◐ — ◐ ◐ ◐
Wet-bottom adapter kit for ASTM G85 Annex A2 and A3 ◐ ◐ ◐ ● ◐ ● ●
● Standard / included ◐ Optional — Not available

On smaller screens, scroll horizontally to compare all chamber columns.

Specialized Corrosion & Environmental Systems
MFG Chamber
Mixed Flowing Gas test chamber
Purpose
Multi-gas corrosion (SO₂, NO₂, H₂S, Cl₂) at ppb/ppm precision.
Example Standards
IEC 60068-2-60
Telcordia GR-1217
Telcordia GR-63
ASTM F1996
Features
Precise ppb/ppm gas dosing
Continuous Immersion Chambers
Full perspective view of the white plastic D.I. Water Immersion Test Chamber with dual covers and side-mounted control panel.
Purpose
Constant liquid exposure for coatings, metals, polymers, and assemblies under uninterrupted immersion conditions.
Example Standards
ASTM D870
ISO 2812-2
ISO 175
Features
Heated immersion testing
Stable liquid exposure conditions
Built-to-order tank configurations
Cyclic Immersion Chambers
Full left-side view of the immersion chamber cart showing the lower water supply tank and vertical plumbing pipes.
Purpose
Automated fill-and-drain immersion cycling for repeated wet / dry liquid exposure of coatings, materials, and components.
Example Standards
Customer-specific cyclic immersion programs
Internal durability procedures
Repeated immersion / drain exposure methods
Features
Upper test tank and lower solution reservoir
Programmable fill and drain cycling
Electronic counter control
Walk-In & Drive-In Corrosion Chambers
Custom walk-in and drive-in corrosion chambers
Purpose
Large-scale corrosion and cyclic corrosion testing for full vehicles, battery systems, large assemblies, HVAC equipment, military hardware, and production-scale components.
Example Standards
SAE J2334
GMW14872
Ford CETP 00.00-L-467
ASTM B117
ISO 9227
Customer-specific corrosion programs
Features
Walk-in and drive-in configurations
Salt fog, cyclic corrosion, humidity, and thermal cycling
Custom engineered around the application
Built in America and supported in America
Spray Chamber
Controlled droplet size spray test chamber
Purpose
Controlled droplet size, pressure, and velocity for ingress testing.
Example Standards
IEC 60068-2-18 (Method R & Rb)
Features
Precision water/spray control
Moist Gas Corrosion Chamber | G4 Multi Gas SO₂ Test Chambers
G4 Multi-Gas and SO2 test chamber
Purpose
Moist sulfur dioxide corrosion under condensation cycles.
Example Standards
DIN 50017
DIN 50018
ISO 3231
ASTM G87
Features
Bench-scale flexibility with tight SO₂ control