Salt spray test is a standardized test method used to check corrosion resistance of coated test samples and bare stainless steel, passivated components.  Salt spray test is an accelerated corrosion test that produces a corrosive attack to the test sample in order to predict its suitability in a corrosive environment.  The appearance of corrosion products (oxides) is evaluated after a period of time.  Test duration is dictated by the specification. However, corrosion resistance depends on the type and quality of the coating or passivation process; the more corrosion resistant the sample is, the longer the period in testing without showing signs of corrosion.

Water Immersion is another form of corrosion resistance testing.  However, it is typically used as verification of cleanliness on stainless steel, passivated detail components.  Water immersion tests are performed using high-purity water and alternately cycling the test specimens through the water and drying them for a specific number of cycles and time. Corrosion resistant samples will show no signs of corrosion at the conclusion of the test cycles.

Taber abrasion is a test to determine a surface's resistance to abrasion (wear).  Resistance to abrasion is defined as the ability of a material to withstand mechanical action such as rubbing scrapping, or erosion.  Abrasion can be difficult to compare but weight loss is easily evaluated.  To perform the test, the original weight of test specimen is measured. The test specimen is then placed on the abrasion tester.  A 1000-gram load is placed on top of the abrader wheel and allowed to spin for a specified number of revolutions.  A final weight is taken the difference between the original and final weight is considered the resistance to abrasion (wear).

Coating weight is a test to determine the actual density or thickness of an applied coating.  Similar to abrasion resistance testing, coating weight compares the original weight of the test specimen to the final weight, after the coating is removed.  The difference between the original weight of the test specimen and the final weight is the coating weight.

Coefficient of Friction Testing is used to determine the lubricity of Teflon coating applied to test specimens. Coefficient of friction (Static and Kinetic) is the ratio of friction to normal force.  Static friction is friction between two objects that are not moving relative to each other.  For example, static friction can prevent an object from sliding down a sloped surface.  The coefficient of static friction is usually higher than the coefficient of kinetic friction.

Kinetic (or dynamic) friction occurs when two objects are moving relative to each other and rub together (like a sled on the ground).  The coefficient of kinetic friction is typically less than the coefficient of static friction.

Acid-base titrations are used to maintain control of solutions that are used to perform the various processes at Premier Precision Group's - Special Processing.  An acid-base titration is a chemistry analysis method that allows quantitative analysis of the concentration of an unknown acid or base solution.  It makes use of the neutralization reaction that occurs between acids and bases and the knowledge of how acids and bases will react if their formulas are known.

Millipore Inspection is a detection system for the identification, isolation, and removal of micro-particle contamination in filterable samples at the final stages of the manufacturing process.  The inspection system detects contamination as small as 5 microns through membrane filtration to prevent the introduction of foreign objects into fuel controls and oil control systems where particulates could cause premature wear and possible failure.

Because Chemical Conversion Coatings are used as corrosion protection in Electrical systems, its resistance to electrical conductivity must be kept to a minimum--Electrical Resistance is the measure of how much the flow of current in a circuit is impeded.  Bare Aluminum has low resistance and so electricity flows through it easily.  Once the aluminum is coated, some of the current is impeded.  Electrical resistance testing determines what measure of current is lost (impeded) as a result of the conversion coating application.