• Shopping Cart
    There are no items in your cart

TAPPI T 622:2010(R2023)

Current

Current

The latest, up-to-date edition.

Analysis of Sodium Hydrosulfite

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

26-10-2023

€47.56
Excluding VAT

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.

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.