Quantofix® test strips, copper, L 95 x W 6 mm, 100 unit(s)Quantofix test strips, copper, L 95 x W 6 mm, 0 10 30 100 300 For semi quantitive determination of various substances. The test strips consist of a 0. 2 mm thick plastic strip with testing paper affixed to the lower end. After the test strip has been moistened, the colouration that appears is compared to a colour scale on the side of the can. The concentration value can be read or a concentration range can be estimated. Dimensions: W 6 x L 95 mm.