Coupon holder for corrosion measurement

An apparatus comprising:

• a) a non-metallic coupon holder assembly made of quartz comprising:
• i. a non-metallic support structure;
• and
• ii. a plurality of coupon holders disposed throughout the non-metallic support structure wherein the plurality of coupon holders are evenly spaced along the non-metallic support structure and are designed to secure both the top edge of the metal coupon and the bottom edge of the metal coupon and the coupon holders comprise a pair of ridges spaced evenly apart at a distance capable of accommodating the thickness of the metal coupon;
• wherein the non-metallic coupon holder assembly is multi-level with a plurality of coupon holders disposed throughout the non-metallic support structure on each level.

A method comprising:

• a) inserting a metal coupon into a non-metallic coupon holder assembly comprising:
• i. a non-metallic support structure;
• and
• ii. a plurality of coupon holders disposed throughout the non-metallic support structure wherein the coupon holders are designed to secure the metal coupon on at least two edges;
• b) subjecting the metal coupon to a corrosion test for a specified period of time;
• and
• c) calculating a corrosion rate of the metal coupon by calculating the weight loss of the metal coupon over the specified period of time.