Apera Instruments SX721, Руководство пользователя

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calibration solution’s, the higher the accuracy of the measurement. This principle is recommended to
follow for the best result. For example: If you have to test at 150°F, we recommend warming up the
calibration solutions to the same temperature before performing calibration in order to get the most
accurate readings.
6.5
Recommended pH Electrodes for Different Applications
Application Ideal Apera pH Electrodes
General water solutions 201T-S, LabSen 211, LabSen 213
Beverage, beer, wine LabSen 211, LabSen 213
Low ionic strength solutions (RO water, distilled water,
deionized water…)
LabSen 801, LabSen 803
Liquid food (milk, cream, yogurt, jam, sauce, etc.) LabSen 821, LabSen 823
High-Temperature solutions LabSen 841, LabSen 861
Low-temperature liquid LabSen881
High salinity solutions LabSen 841
Complex and caustic solutions (e.g. electroplating) LabSen 861
Raw meat LabSen 761, LabSen 763
Micro sample testing LabSen 241-6, LabSen 241-3
Cosmetics, skincare products LabSen 851-1, LabSen 851-S
Soil LabSen 551, LabSen 553
Solid or semi-solid samples (cheese, dough, fruits, meat
products, etc.)
LabSen 251, LabSen 751, LabSen
753
Strong acid solutions, HF containing solutions (HF
concentration<1%)
LabSen 831
Strong alkaline solutions LabSen 841
Surface test (skin, paper, carpet, etc.) LabSen 371
TRIS buffer solutions LabSen 213, LabSen 223
Viscous solutions LabSen851-S, LabSen 851-H
Wastewater or emulsion LabSen 333