Active
, Reaffirmed
Standard
Most Recent
ISO 1388-8:1981 (R2023)
Ethanol for industrial use — Methods of test
Part 8: Determination of methanol content (methanol contents between 0,10 and 1,50 % (V/V)) — Visual colorimetric method
Part 8: Determination of methanol content (methanol contents between 0,10 and 1,50 % (V/V)) — Visual colorimetric method
Preview
Summary
The principle is based on the conversion of the methanol present in a test portion to formaldehyde by oxidation with a solution of potassium permanganate in phosphoric acid. Reaction of the formaldehyde formed with Schiff reagent. Visual comparison of the colour obtained with the colours of standard colorimetric solutions containing known quantities of formaldehyde. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.
Notes
90.93 : Norme internationale confirmée
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 11/01/1981 |
| Confirmation Date | 11/29/2023 |
| Edition | 1 |
| Page Count | 3 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
No products.