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DuvinDD 18 Pack pH Meter Buffer Solution Powder 6.86/4.00/9.18, pH Calibration Solution Packets for Precise PH Meter
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*Packaging of actual item may differ from photo shown
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DuvinDD 18 Pack pH Meter Buffer Solution Powder Features
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Suitable with most of pH meters, Ideal for Calibrating
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pH buffer calibration solution powder accuracy is plus or minus 0.01pH, accurate and precise
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Individually wrapped to maintain freshness until use. Made with qualify materia
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Easy to use: 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
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18 pack ph calibration packets: 6*ph 6.86 packets, 6*ph 4.00 packets, 6*ph 9.18 packets, cost-effective and flexible for using
About DuvinDD 18 Pack PH Meter Buffer Solution Powder
Specifications: Accuracy: ±0.01pH at 77°F(25°C) ✔ 6 packets of pH 4.00 Solution powder ✔ 6 packets of pH 6.86 Solution powder ✔ 6 packets of pH 9.18 Solution powder Directions for use: Step 1:Completely empty the powder into a dry glass container. Step 2:Add 250mL deionized water (or distilled water) to the beaker. Step 3:Stir until the powder has completely dissolved. Step 4:Put the pH meter in the solution and gently stir and wait a few seconds for the result. CAUTION: Not a drinkable solution! The ph meter may need to be recalibrated mainly in these cases: -Inactivity for long period, for example over 3-4 weeks. -Very frequently used. -Can't get a stable meter reading. -After testing strong acid/alkline. -The testing accuracy requirement is high
