TAPPI T 622:2010(R2023)
Current
The latest, up-to-date edition.
Analysis of Sodium Hydrosulfite
Hardcopy , PDF
English
26-10-2023
This procedure is based on coupling sodium hydrosulfite with formaldehyde to form a stable sodium formaldehyde sulfoxylate, which is titrated with iodine.
| DocumentType |
Test Method
|
| Pages |
4
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Current
|
| Supersedes |
The method describes the procedure for determining the percentage of active chemicals in sodium hydrosulfite (Na2S2O4) products.
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