"Caresource" is a leading laboratory equipment supplier in Turkmenistan, Kazakhstan, Uzbekistan and beyond. Uses : 1. Laboratories : Measuring pH in chemical and biological research. 2. Education : Science experiments and demonstrations. 3. Healthcare : Testing urine and saliva pH. 4. Food & Beverage : Quality control in products like beverages and dairy. 5. Environmental Testi... https://caresourceglobal.com/product/universal-indicator-paper-ph-1-11-10-books-of-20-strips/