This method gives a quick, approximate pH reading, making it ideal for home gardeners. Digital pH meters provide a more ...
IPI tests paper-based materials and adhesives for pH levels using a modification (described in ISO 18902) of the standardized test, TAPPI T 509 Hydrogen Ion Concentration (pH) of Paper Extracts (Cold ...
The vagina is a slightly acidic environment, with a pH of less than 4.5. Higher pH levels allow bacteria and yeasts to thrive, which can result in bacterial and yeast infections. Vaginal pH tests ...