American National Standard for Materials and Finishes
This standard establishes finish test methods and code numbers for finishes on various base materials. It includes criteria for viewing comparative finishes to the BHMA match plates and establishes five categories of finishes.
Tests requirements include: salt spray test; perspiration test; humidity test; abrasion resistance test; and ultraviolet light and condensation test. In addition, finish nomenclature and code numbers are detailed in this standard.
Examples of Finish Tests:
Salt Spray Test. This test shall be conducted in accordance with ASTM B 117-95 Standard Method of Salt Spray (Fog) Testing. Parts shall withstand exposure for the time specified in the applicable ANSI/BHMA A156 Series Standard without base material or substrate corrosion exceeding…
Perspiration Test This test shall be conducted using a reagent made up by weight of 5% sodium chloride, 5% acetic acid, 3% butyric acid, 3% valeric acid and 84% distilled water… Apply the reagent…
Please note that the respective product standard, i.e. ANSI/BHMA A156.2 for Locks, governs which tests and values are applicable.
Examples of finish nomenclature and code numbers:
BHMA FINSH DESCRIPTION CODE NUMBER
Bright Brass 605 Bright Brass, clear coated 632 Bright brass plated, clear coated 666 Bright brass plated, clear coated 677 Bright brass plated, clear coated 723 Bright brass appearance vacuum applied 724 Bright brass appearance vacuum applied 729
Bright brass appearance vacuum applied
NEAREST
FORMER US EQUIVALENT
Brass US3 Steel US3 Aluminum US3 Zinc US3 Brass/Bronze US3 300 Series US3 Stainless Steel Zinc US3 BASE
MATERIAL
因篇幅问题不能全部显示，请点此查看更多更全内容