How accurate are the test strip color charts?
The color charts, supplied with the test strips, are the most important factor in getting reliable, accurate results. The test strip can be the best available, but if the strip pad colors do not match the colors printed then strip accuracy suffers. In order to provide the most accurate color charts available, manufacturers employ tried and true quality control procedures. As an example, Industrial Test Systems, Inc., manufacturer of the SenSafeTM and WaterWorksTM line of test strips, takes a very active role in test strip color chart printing. Beginning with the design work and through the final printing of the color charts, the quality control staff monitors the process. Quality control members also do a 100% check of all printed labels before use. Before the test strips are shipped, the labels are checked once again to make sure that the test strip lot and color chart label meet quality control specifications. By employing a system such as this, test strip manufacturers are able to p
