Calibration Buffer Solution pH 7.00 100ml

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Calibration Buffer Solution pH 7.00 100ml

  • Ref: 0131201 A1

7.50
all prices include VAT


Calibration Buffer Solution pH 7.00 100ml


What is pH:-
pH is the measurement of the concentration of free hydrogen ions in a liquid. The pH of pure water is 7. Liquids having a larger concentration of hydrogen ions than water are acid and have a pH-value of less than 7. Liquids with a lower concentration of hydrogen ions, on the other hand, are base and have a pH value higher than 7. The pH scale runs from 1 to 14.

Maintaining a pH-meter:-
Your pH-meter is a precision instrument. Proper use and appropriate maintenance are important if you are to enjoy it for a long time. Here are some things to look out for:

When you buy it the electrode is usually dried out. Start by letting it soak in the storage solution for 4 hours. Also fill the cap that slides over the electrode with the same storage solution after use. In this way your electrode will keep on working properly for much longer.
To take a measurement the pH meter must first be calibrated. The buffer solution can be used to do this. If the pH meter can only be calibrated at 1 point, use the buffer solution that is closest to your normal readings.
During calibration watch out that no ‘contamination’ of the buffer solution occurs – so never stick the electrode directly into the bottle, but instead pour a small quantity into a separate beaker and take the measurement in that. After calibration, pour the used beaker away and do not return the liquid back into the bottle!
You should preferably never touch the electrode – certainly not with your fingers. If you want to clean the electrode, do so only with a soft cloth without rubbing.
Delivery on Average take 2-3 Working Days
(sometimes longer During busy times)


For UK
Mainland UK, Order weight Under 1kg = 2.60 + VAT = 3.12
Mainland UK, order value Over 65 = FREE DELIVERY
Mainland UK, order value Under 65, But order weight Over 1kg = 5.42 + VAT = 6.50

Saturday delivery to mainland UK 21.25 + VAT = 25.50 (must have the order by, 2pm Friday)
Some postcodes we can't send on Saturday Delivery like AB 51


Highlands & Islands
Under 1kg 2.60 + VAT = 3.12
Under 78, 1kg - 25kg 13+VAT = 15.60
Over 78 - Upto 25kg = 6 + VAT = 7.20
Over 78 - 26kg - 51kg 12 + VAT = 14.40
Over 78 - 52kg - 76kg 18 + VAT = 21.60
Over 78 - 77 - 101kg 24 + VAT = 28.80


For Northern Ireland ( BT Post codes)
Northern Ireland order weight Under 1kg = 2.60 + VAT = 3.12
Northern Ireland order weight 1kg - 29kg = 7.50 + VAT = 9.00
Northern Ireland order weight 30kg - 59 kg = 15 + VAT = 18
Northern Ireland order weight 60kg - 89 kg = 22.50 + VAT = 27


Channel Islands - Jersey and Guernsey
Under packed order weight 1kg = 2.60 ( No Vat)
Order weight is 1kg - 25kg = 18.00 ( No Vat), 2 day service
order weight is 25.01kg - 50kg = 36.00 ( No Vat), 2 day service
order weight is 50.01kg - 75kg = 54.00 ( No Vat), 2 day service
FOR EU ORDERS ( AS BELOW )

For more Information please see Delivery Info at the top of the site

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Free UK Delivery Orders over 65 exceptions apply

Most orders within mainland UK. Excludes Highlands & Islands

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We Deliver to Europe!

In Europe? Not a problem. We deliver to most european countries under 1Kg.

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