pH buffers & conductivity standards

427 products

Showing 337 - 360 of 427 products

Showing 337 - 360 of 427 products
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7.01 pH Value @25°C, 500 mL bottleHanna Instruments
Hanna Instruments 7.01 pH Value @25°C, 500 mL bottle
€20,00
4.01 pH Value @25°C, 1?llon (3.78 L) bottleHanna Instruments
Hanna Instruments 4.01 pH Value @25°C, 1?llon (3.78 L) bottle
€61,00
5.00 pH Value @25°C, (1) 500 mL bottleHanna Instruments
Hanna Instruments 5.00 pH Value @25°C, (1) 500 mL bottle
€34,00
6.86 pH Value @25°C, (25) 20 mL sachet with Certificate of AnalysisHanna Instruments
Hanna Instruments 6.86 pH Value @25°C, (25) 20 mL sachet with Certificate of Analysis
€41,00
7.010 pH Value @ 25°C, (1) 500 mL bottleHanna Instruments
Hanna Instruments 7.010 pH Value @ 25°C, (1) 500 mL bottle
€41,00
4.010 pH Value @ 25°C, (25) 20 mL sachetsHanna Instruments
Hanna Instruments 4.010 pH Value @ 25°C, (25) 20 mL sachets
€63,00
4.01 pH Value @25°C, (25) 20 mL sachets with Certificate of AnalysisHanna Instruments
Hanna Instruments 4.01 pH Value @25°C, (25) 20 mL sachets with Certificate of Analysis
€39,00
12.00 pH Value @25°C, (10) 20 mL sachetsHanna Instruments
Hanna Instruments 12.00 pH Value @25°C, (10) 20 mL sachets
€34,00
1.68 pH Value @25°C, 500 mL bottleHanna Instruments
Hanna Instruments 1.68 pH Value @25°C, 500 mL bottle
€20,00
12.45 pH Value @25°C, (25) 20 mL sachetsHanna Instruments
Hanna Instruments 12.45 pH Value @25°C, (25) 20 mL sachets
€53,00
10.01 pH (@25°C) Standard Calibration Solution, 500 mL bottleHanna Instruments
Hanna Instruments 10.01 pH (@25°C) Standard Calibration Solution, 500 mL bottle
€20,00
10.010 pH Value @ 25°C, (1) 500 mL bottleHanna Instruments
Hanna Instruments 10.010 pH Value @ 25°C, (1) 500 mL bottle
€41,00
10.01 & 7.01 pH Value @25°C, (10) sachets, 5 eachHanna Instruments
Hanna Instruments 10.01 & 7.01 pH Value @25°C, (10) sachets, 5 each
€27,00
1.68 pH Value @25°C, (1) 500 mL bottleHanna Instruments
Hanna Instruments 1.68 pH Value @25°C, (1) 500 mL bottle
€34,00
13.000 pH Value @ 25°C, (1) 500 mL bottleHanna Instruments
Hanna Instruments 13.000 pH Value @ 25°C, (1) 500 mL bottle
€41,00
10.010 pH Value @ 25°C, (25) 20 mL sachetsHanna Instruments
Hanna Instruments 10.010 pH Value @ 25°C, (25) 20 mL sachets
€63,00
12.000 pH Value @ 25°C, (1) 500 mL bottleHanna Instruments
Hanna Instruments 12.000 pH Value @ 25°C, (1) 500 mL bottle
€41,00
1.679 pH Value @ 25°C, (1) 500 mL bottleHanna Instruments
Hanna Instruments 1.679 pH Value @ 25°C, (1) 500 mL bottle
€41,00
10.01pH (@25°C) Standard Calibration Solution, (25) 20 mL sachetsHanna Instruments
Hanna Instruments 10.01pH (@25°C) Standard Calibration Solution, (25) 20 mL sachets
€36,00
10.01 pH Value @25°C, (1) 500 mL bottleHanna Instruments
Hanna Instruments 10.01 pH Value @25°C, (1) 500 mL bottle
€34,00
10.01 pH (@25°C) Standard Calibration Solution, 1 L bottleHanna Instruments
Hanna Instruments 10.01 pH (@25°C) Standard Calibration Solution, 1 L bottle
€24,00
10.01 pH Value @25°C, (1) 1 L bottleHanna Instruments
Hanna Instruments 10.01 pH Value @25°C, (1) 1 L bottle
€53,00
10.01 pH (@25°C) Standard Calibration Solution, 1?llon (3.78 L) bottleHanna Instruments
Hanna Instruments 10.01 pH (@25°C) Standard Calibration Solution, 1?llon (3.78 L) bottle
€61,00
12880 µS/cm EC value @25°C, 120 mL bottleHanna Instruments
Hanna Instruments 12880 µS/cm EC value @25°C, 120 mL bottle
€18,00

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Questions about pH buffers & conductivity standards

Why pH buffers & conductivity standards?

A pH buffer for calibration has a stated pH at a stated temperature, often traceable. A conductivity standard has a stated conductivity. They are not general reagents and they should not be poured back into the bottle. The temperature of the measurement has to be the temperature on the label, or the meter has to compensate.

A buffer resists a change in pH when a little acid or base is added. It does that because a weak acid and its conjugate base are both present. A pH buffer used to calibrate a meter has a stated value at a stated temperature. A biological buffer such as Tris or HEPES is chosen because it holds the pH of a living system and does not poison it. Conductivity standards are the sister articles for a conductivity meter. The ions are on PubChem. Electrode calibration practice sits with EURAMET and BELAC.

This shelf belongs to Buffers & pH solutions, inside Lab chemicals. Luminix Health distributes this range for laboratory use.

Which shelves sit beside this one?

The neighbouring shelves are Biological buffers (Tris, HEPES, MOPS) and Buffers (other). The category above this shelf is Buffers & pH solutions.

How does ordering and shipping work?

Luminix Health distributes this range from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

Which other categories should I open?

The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology. If the article is not on the shelf, request a quote.