Hi,
When testing for TA my sample goes from green to dark in one drop (70ppm), then to pink in one drop (80ppm). If I add another drop it goes to a really bright pink (90ppm). Is the TA 80 or 90ppm?
Thanks,
Joe
When testing for TA my sample goes from green to dark in one drop (70ppm), then to pink in one drop (80ppm). If I add another drop it goes to a really bright pink (90ppm). Is the TA 80 or 90ppm?
Thanks,
Joe