Bluelab pH 4.0 Calibration Solution 250 ml

Bluelab pH 4.0 Calibration Solution 250 ml
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.

Write a review

Please login or register to review
  • Brand: BlueLab
  • Product Code: 732897
  • Availability: In Stock
  • $8.15
Nuke Em® insecticide/fungicide is a pesticide that has been proven effective in both hobby and comme..
$176.95
The B.C. Hydroponic Nutrients are a power-packed trio for nurturing generous vegetative crops and ex..
$166.61
The Bluelab® Carry Case provides a custom fit so you can use and read your Bluelab® Meter right from..
$25.00
Commonly used to provide oxygen in aquariums, fish farms, hydroponic systems and more. Solid aluminu..
$129.95
Used to promote rooting, late flowering and ripening, Super Boost® uses high quality ingredients cri..
$557.19
Nutrient rich, Happy Frog® Potting Soil is highly recommended for container gardens. Ready to use ri..
$528.59
Active Air Inline Duct Fans offer innovation and performance at a great price. With a full line of f..
$129.95 $97.46
Active Air Inline Duct Fans offer innovation and performance at a great price. With a full line of f..
$169.95 $127.46
AzaMax is a natural product with a broad spectrum of pest control. It contains Azadirachtin A & ..
$29.58 $22.18
AzaMax is a natural product with a broad spectrum of pest control. It contains Azadirachtin A & ..
$69.98 $52.48
AzaMax is a natural product with a broad spectrum of pest control. It contains Azadirachtin A & ..
$118.95 $89.21
Boveda’s patented 62% humidity control packs regulate moisture content, keeping the contents of your..
$1.25
These are standard 1020 trays with the exception that they are four times the thickness of tradition..
$4.99
Neptune's Harvest is an organic fertilizer made from fresh North Atlantic fish. It is made by a uniq..
$36.99
Similar to the Vertizontal®, the Silver Sun® combines the features of the traditional vertical and h..
$135.95
The unique combination of ingredients in SugarDaddy are vital for all stages of plant growth and dev..
$225.56