BS ISO 17315:2014
Current
The latest, up-to-date edition.
Petroleum products and other liquids. Ethanol. Determination of total acidity by potentiometric titration
31-10-2014
Foreword
Introduction
1 Scope
2 Terms and definitions
3 Reagents and materials
4 Apparatus
5 Apparatus calibration
6 Procedure
7 Calculation
8 Expression of results
9 Precision
Bibliography
Describes a test method for the determination of total acidity of ethanol by potentiometric titration.
| Committee |
PTI/13
|
| DevelopmentNote |
Supersedes 13/30271022 DC. (10/2014)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies a test method for the determination of total acidity of ethanol by potentiometric titration. The total acidity is reported as acetic acid mass, in milligrams, per ethanol volume, in litres, or as mass percent of acetic acid (% m/m), if the density of ethanol is known.
NOTE 1 For the purposes of this International Standard, the terms “% m/m” and “% v/v” are used to represent the mass fraction and the volume fraction of a material, respectively.
NOTE 2 This method was evaluated with ethanol samples with different water contents (0,7 % m/m and 7% m/m) and acidity values (5mg to 50mg HAc per litre of sample).
| Standards | Relationship |
| ISO 17315:2014 | Identical |
| ISO 5725-6:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values |
| ISO Guide 35:2017 | Reference materials — Guidance for characterization and assessment of homogeneity and stability |
| ISO Guide 30:2015 | Reference materials — Selected terms and definitions |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
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