ASTM D1275 Copper Test Strip

Copper test strip used in ASTM D1275 / IP 315 (Corrosive Sulfur in Electrical Insulating Oils). The test specimen is 1/4" x 1" x 0.005-0.010". Each test strip is polished 240 grit silicon carbide per ASTM D1275. The finished test strips are packaged with desiccant in a small jar (25 strips per jar), convenient for use in the laboratory. 
 
ASTM D1275 replaces Federal Test Method (FTM) 5328.