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  1. Growth Technology pH Buffer 7 and pH Buffer 4 - Essentials Calibration 300ml

    1 x pH Buffer 4 300ml Growth Technology. 1 x pH Buffer 7 300ml Growth Technology.

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  2. 3pcs/lot PH Buffer Powder Measure Calibration Solution ph4.01/ 6.86 /9.18 Calibration Point For PH Test Meter 50% off

    3pcs/lot PH Buffer Powder Measure Calibration Solution ph4.01/ 6.86 /9.18 Calibration Point For PH Test Meter 50% off

    Aliexpress UK

  3. pH Buffer 4.01, 7.0, 10.0 Calibration Fluid suitable for Hydroponics 250ml - 5L

    pH Calibration Buffers Colour Coded pH 4.01 (Red), pH 7.0 (Yellow) pH 10.0 (Blue) Pack Sizes: 250ml, 500ml, 1L, 5L Simply select your required pH Value and Pack Size from drop down pH Buffers used for calibrating pH meters need to be a known value of a certain pH, our buffers (manufactured in Manchester) are tested to a pH accuracy of 0.01 pH. - - Colour Coded for ease of identification and two values are required in a TWO point calibration process, pH 4.01 (Red) and pH 7.0 (Yellow). - - pH 10.01 is used in a Three Point calibration or as an alternative to 4.01/7.0 in a two point calibration. - - When calibrating it is advisable to only use a small amount (50ml) of each buffer in two separate containers, calibrate the meter and discard buffers same day to prevent.

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  4. 30pcs/lot PH Buffer Powder Measure Calibration Solution ph4.00/ 6.86 /9.18 Calibration Point for PH Meter 40% Off

    30pcs/lot PH Buffer Powder Measure Calibration Solution ph4.00/ 6.86 /9.18 Calibration Point for PH Meter 40% Off

    Aliexpress UK

  5. PH BUFFER SOLUTION POWDER - pH 4.00 / 6.86 / 9.18

    SOLUZIONE TAMPONE PH IN POLVERE - pH 4,00 / 6,86 / 9,18. Conservare al sicuro lontano dalla portata dei bambini. Non inalare, può causare problemi respiratori. Non ingerire.

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  6. PH Meter Calibration Solution 50ML Professional 4.0 7.0 10.0 PH Pens Calibration Solution 30 ML Probe Protection Liquids

    PH Meter Calibration Solution 50ML Professional 4.0 7.0 10.0 PH Pens Calibration Solution 30 ML Probe Protection Liquids

    Aliexpress UK

  7. PH CALIBRATION BUFFER POWDER, 4.01 6.86 9.18, PROBE, TESTER, SOLUTION AQUARIUM

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  8. PH&ORP calibration powder buffer powder 25ml 84us/cm 1413us/cm 12.88ms/cm 35PPT 1382 TDS calibration solution for EC TDS tester

    PH&ORP calibration powder buffer powder 25ml 84us/cm 1413us/cm 12.88ms/cm 35PPT 1382 TDS calibration solution for EC TDS tester

    Aliexpress UK

  9. Hanna HI-70004P 2x pH 4.01 Buffer Solution Sachet 20ML PH TEST Calibration Meter

    This single dose sachet is really handy with each sealed sachet holding just the right amount of solution. The pH 4.01 buffer solution is available in a quick and easy to use 20ml sachet, one of the most commonly used buffer solutions.

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  10. YIERYI PH Calibration Solution 50ML 4.0 7.0 10.0ph Calibration Liquid for Ph Meter 30 ML Probe Protection Liquids

    YIERYI PH Calibration Solution 50ML 4.0 7.0 10.0ph Calibration Liquid for Ph Meter 30 ML Probe Protection Liquids

    Aliexpress UK

  11. PH Calibration Solution PH Calibration Buffer Solution 50ml PH4.00/PH7.00/PH10.0

    PH value: PH4.00/PH7.00/PH10.01. Capacity: 50ml. Cleaning's a breeze. PH accuracy: ±0.01.

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  12. Soil Test Kit Function 4 in 1 Reagent Set PH Nitrogen P K Soil Detector Soil PH Test Liquid Solution For Agriculture Gardening

    Soil Test Kit Function 4 in 1 Reagent Set PH Nitrogen P K Soil Detector Soil PH Test Liquid Solution For Agriculture Gardening

    Aliexpress UK

  13. pH Buffer 4 PH 300ml Growth Technology Calibration Fluid

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  14. 4 in 1 Soil Test Solution Kit PH kalium Phosphorus Nitrogen Measuring Soil Test Liquid Kit for Agriculture Gardening Test

    4 in 1 Soil Test Solution Kit PH kalium Phosphorus Nitrogen Measuring Soil Test Liquid Kit for Agriculture Gardening Test

    Aliexpress UK

  15. Vitalink Essentials PH EC Buffer 4 7 Calibration Fluid CF Solution Hydroponics

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