Coupon Holder
A Coupon of a material similar to the pipe material 1) is installed inside the pipe or vessel for a given
period, and after retrieval, Coupon
weight loss is measured. From the weight loss, cor-rosion rates can be calculated. In
addition, effects like pitting corrosion,
scaling, deposits or bacteria can be analyzed.
Coupons are made according to NACE specifications, and it is also recommended that Coupon
analysis is done accor-ding to
the NACE recommendations 2). Each Coupon is marked with serial number, weight (to 0,1 mg
accuracy), dimensions and
material quality. Each Coupon is individually packed in inhibited envelopes.
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