Corrosion Testing Equipment

Salt Spray Test Chambers

Indeecon salt spray chambers deliver repeatable ASTM B117 and ISO 9227 corrosion testing for automotive, aerospace, and industrial applications. Get a quote.

Salt spray chambers are used to expose coated parts, plated hardware, and assemblies to a controlled saline atmosphere so corrosion resistance can be measured before the product reaches field conditions.

For most buyers, the decision is not just about chamber size. The real questions are which method applies, what material or coating is being qualified, and which standards the chamber must support consistently.

How Salt Spray Chambers Work

The chamber atomises a sodium chloride solution into a stable salt fog inside a temperature-controlled cabinet. Specimens are mounted at a defined angle and exposed continuously according to the applicable test method.

Standards such as ASTM B117 and ISO 9227 define the apparatus and operating conditions, while the pass-fail duration is set by the material standard, OEM requirement, or customer specification.

NSS, CASS, and AASS Methods

  • Neutral Salt Spray for the broadest coverage of plated, galvanized, and powder-coated parts.
  • Copper-accelerated salt spray for aluminium alloys, decorative chrome, and faster corrosion screening.
  • Acetic acid salt spray for organic coatings and certain aerospace or military finish systems.

Common Industry Use Cases

  • Automotive coating and fastener qualification to OEM corrosion requirements.
  • Aerospace and defence supplier validation for plated hardware and structural finishes.
  • Marine and outdoor hardware corrosion comparison for humid or saline service environments.
  • Electronics and industrial component screening for connectors, coatings, and exposed hardware.

Frequently Asked Questions

What does ASTM B117 actually specify?

ASTM B117 defines the apparatus and operating conditions for running a neutral salt spray test. The actual exposure duration and pass-fail criteria come from the material standard, OEM requirement, or customer specification that references ASTM B117.

Can one chamber support NSS, CASS, and AASS?

Yes, if the chamber materials and controls are specified correctly. The key is verifying chemical compatibility, operating temperature capability, and proper cleaning between methods so the test environment remains consistent.