200PCS PH Buffer Powder for aquarium meter Test Meter Measure Calibration Solution 4.01/6.86 | Инструменты

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200PCS PH Buffer Powder for aquarium PH meter PH Test Meter Measure Calibration Solution 4.01/6.86

PH calibration liquid powder is divided into 6 types, namely, 4.00, 4.01, 6.86, 7.00, 9.18, 10.01, 6 kinds of specifications. Each pack 250 ml standard liquid can be produced

Usage method:

Cut plastic bags, the powder into 250 ml volumetric flask, with a small amount

CO2 distilled water rinse plastic bag inside, and diluted to scale shake.

Powder shelf life 2 years.

Calibration fluid under the premise of no pollution, can be repeated use. The water after shelf life

In about six months.

Liquid calibration method of use：

Clean acidity meter electrode with pure water (2-3 times), then the calibration electrode immersed in liquid,

Dispatch the pH pH meter to like liquid calibration value.

If you want to instrument accuracy is higher, can use two or three calibration.

The so-called two calibration, calibration is to use two kinds of specifications of the liquid calibration, three-point calibration is to use three kinds of rules

Calibration of liquid calibration.

Calibration typically begin with 6.86. And then with 4.00 or 9.18 calibration.