PH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.
BlueLab PH 4.0 Calibration Solution, 250 milliliters
Was:
$76.98
Now:
$38.49
- SKU:
- TQW85967
- UPC:
- 798527146782
- Condition:
- New
- Availability:
- Free Shipping from the USA. Estimated 2-4 days delivery.
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BlueLab PH 4.0 Calibration Solution, 500 milliliters
Was:
$82.70
Now:
$41.35
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Bluelab pH 4.0 Calibration Solution 250ml 732897
Was:
$71.88
Now:
$35.94
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Bluelab PH 7-0 Calibration Solution 500 milliliters
Was:
$91.88
Now:
$45.94
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Bluelab 732895 PH 7.0 Calibration Solution_ 250 milliliters Industrial_Products_ Natural
Was:
$81.88
Now:
$40.94
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Bluelab Ph 7.0 Calibration Solution 20ml Sachet
Was:
$43.28
Now:
$21.64