Buffer Solution Powder Precise Calibration Review

High Accuracy --- pH meter calibration solution accuracy is ±0.01pH. Sealed by durable moisture-proof individual packet to maintain freshness until use. Easy to use --- pH buffer powder is save time and money. Mix the buffer powder with 250ML distilled water, put the pH meter in the solution and gently stir and wait a few seconds for the result. ph Standard Buffer Powder --- Works with All electronic pH meters/ph tester. pH calibration powder is produced with premium quality material under strict conditions. Good Quality --- Produced with premium material. Sealed by durable moisture-proof individual packet for long-term use. 20 Pack ph calibration packets: 10* pH 4.01 Solution powder, 10*pH 6.86 Solution powder, cost-effective and flexible for using.