pH Paper and Buffers
WTW™ Standard Buffer Solutions
As a standard buffering solution, this buffer pH 9.180 (PL 7) is available in a 250 ml bottle. BUFFER PL9
Scharlab Buffer Solution pH 10
BUFFERTLÖSNING PH 10 250ML
WTW™ Standard Buffer Solution pH 4.01
With a high accuracy: ±0.02 pH, this standard buffering solution is traceably certified to PTB/NIST and therefore safe for use. BUFFER PL 4
Scharlab Buffer Solution pH 7
BUFFERTLÖSNING PH 7 250ML
WTW™ STP 7 Model Buffer Solution pH 7
50ML BUFFER PH7
WTW™ TEP 4 Model Buffer Solution pH 4
PH BUFFER PH4 1LFlasche)
Mettler Toledo™ Technical pH Buffer Solutions
Provides a reliable all-around pH buffer. Mettler Toledo™ Technical pH Buffer Solution are specified to two decimal places and are traceable to NIST standards. Color-coded solution comes in a handy 250mL plastic bottle with no-fuss labels. 250 ML TECHNICAL BUFFER, PH10.00 250ML
Hamilton™ DuraCal™ 7.00 Value pH Buffer
HAM BUFFER ph7 3X500ML *36 238918
Scharlab Buffer Solution pH 4
Synonym: Potassium hydrogen phthalate buffer BUFFERTLÖSNING PH 4 250ML
WTW™ Technical Buffer Solution pH 2
BUFFER TEP 2Flasche)
Thermo Scientific™ Orion™ pH Buffer Bottles
Perform accurate, reproducible pH calibrations with color-coded Thermo Scientific™ Orion™ pH Buffer Bottles. X5 PH 6.86 BUFFER 60 ML S
Hamilton™ DuraCal™ 4.01 Value pH Buffer
500ML DURACAL pH 4.01
WTW™ TPL 4 Model Buffer Solution pH 4
250ML 4,01 BUFFER SOLUTION
Hamilton™ DuraCal™ 9.21 Value pH Buffer
500ML DURACAL pH 9.21
Hamilton™ DuraCal™ 10.01 Value pH Buffer
DURACAL PH 10.01 500ML
Scharlab Buffer Solution pH 7, Yellow-Colored
BUFFERTLÖSNING GUL PH7 1L
WTW™ TEP 7 Model Buffer Solution pH 7
PH BUFFER PH7 1LFlasche)
Honeywell Fluka™ Buffer solution pH 13.0 (20°C), Glycine / sodium hydroxide / sodium chloride solution, Honeywell Fluka™
1LT Buffer solution pH 13.0 (20oC) glycine / sodium hydroxide / sodium chloride solution
Fisherbrand™ Traceable™ One-Shot pH Buffer Standards (CRM)
Provides the most accurate pH standards available anywhere. Fisherbrand™ Traceable™ One-Shot pH Buffer Standards (CRM) is 100% compatible with all makes and instruments. Traceable CRM pH Asst Pack, One-Shot
Honeywell Fluka™ Buffer solution pH 7.0 (20°C), Potassium dihydrogen phosphate / disodium hydrogen phosphate, traceable to SRM from NIST, with fungicide, Honeywell Fluka™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.046 MDL Number: MFCD00146206 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: azanium;hydroxide SMILES: [NH4+].[OH-] X6 Buffer solution pH 7.0 (20oC) potassium dihydrogen phosphate / disodium hydrogen phosphate, 1L
Hach Lange™ pH Standard, IUPAC pH 7.413
PH 7,413 CERTIFICERET IUPAC BUFFER 500 ML FLASKES11M005
WTW™ Model Buffer Solutions
50ML SOLUTION TAMPON TECHNIQ PH 4
Scharlab Buffer Solution pH 2
BUFFERTLÖSNING PH 2 1L
LaMotte™ Insta-Test™ Single and Multi-Factor Test Strips
For water quality testing Anti-GSTP1
Thermo Scientific™ Orion™ Pure Water™ pH Buffers and pHISA™ Adjustor
Sample well, rain, distilled/deionized, boiler feed and process waters with the Thermo Scientific™ Orion™ Pure Water™ pH Buffers and pHISA™ Adjustor. X4 WATER PH 9.15 BUFFER C 475ML
Hanna Instruments™ pH 4.01 Calibration Buffer Solution Sachets
BOX 25 SACHETS PH BUFFER 4,01
Mettler Toledo™ Technical Buffer for pH DKD Certified pH 4.01
250 ML DKD CERTIFIED BUFFER, PH4.01 250ML
WTW™ Electrolytes and Cleaning Solutions
Used as refill solutions for liquid filled electrodes as well as a storage solution for all types of pH electrodes, these electrolytes and cleaning solutions are ideal for operating, storing, and cleaning electrodes. BUFFER KCL-50
Mettler Toledo™ pH Buffer Sachets
X30 BUFFER SOLUTION PH SACHETS PH 10.00 20ML(pack of 30)
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pH papers, pH strips, pH sticks and pH test kits are used in laboratory, industrial and educational environments to qualitatively assess pH levels or monitor acid-base titrations in a range of sample types. pH buffer reference standards are used for the accurate calibration of pH meters and monitors for far more precise and quantitative pH measurement.
pH test papers are supplied either as rolls, tear-off strips, or sticks. They are impregnated with indicator dyes which change colour when dipped into the solution under test. In some products, the indicator dyes are covalently linked to the cellulose fibres to avoid bleed-out (leaching) and contamination of the test samples.
Some pH papers indicate simple acid or base conditions with a single red-blue colour change (also called litmus papers). Universal pH papers and strips contain a mix of indicator dyes which cover a range of pH values up to and including 0 to 14 in a single test. The observed colour change is checked against a comparison chart normally supplied with the papers.
Alternatively, for accurate assessment of pH, standard (reference) pH buffers are manufactured to very high degrees of precision and are used for the quantitative calibration of pH meters, electrodes and other electrochemical sensors. Standard buffers are:
- Typically supplied at fixed values of pH4.01, pH7.00 and pH10.01
- May be colour-coded for easy and quick identification
- Certified to their nominal pH and accuracy at a specified temperature (typically 20°C)
- Supplied as ready-to-use solutions or concentrates
- Contain antifungals for extended shelf life
