For Aviation components subjected to marine environments, a controlled assessment of the effects of salt spray is vital for engineers and technicians alike to establish susceptibility to corrosion and limits of corrosion before structural integrity is affected (Additional tensile testing will be required for structural integrity assessments).
Aerospace components subjected to more normal conditions can be tested to achieve accelerated weathering, forcing faster corrosion with the salt spray which can be scaled to service conditions to estimate lifetimes.
Our chamber encloses products in a fine mist of salt solution at a controlled temperature.
A few years ago (2005) the ASTM B117-09 test standard (Salt Spray Testing) was amended. To comply with this, a level of purity in the salt used has been specified for the first time.
The new specification requirements are:
- The salt cannot contain any anti-caking agent
- Copper levels in the salt must not exceed 0.3 ppm by weight
- The total Fluorine, Iodine and Bromide content must be no more than 0.1% by weight
4ward Testing Ltd has been and will continue to use only this pure, high grade salt in all our salt spray testing equipment.
Apart from the standard salt spray exposures to a full range of International standards, our chambers are capable of neutral spray.
We can also accommodate products of up to 1 cubic meter in volume, for example heavy units such as engine blocks.