ISO 15028:2014

Plastics — Aromatic isocyanates for use in the production of polyurethanes — Determination of hydrolysable chlorine

ISO 15028:2014 specifies a method for the determination of the hydrolysable-chlorine content of toluene-2,4-diisocyanate, toluene-2,6-diisocyanate or mixtures of the two. This test method may also be applied to other isocyanates of suitable solubility, such as crude or refined polymeric isocyanates.

Plastiques — Isocyanates aromatiques pour utilisation dans la production de polyuréthannes — Détermination du chlore hydrolysable

General Information

• Status: Published
• Publication Date: 10-Feb-2014
• ICS: 83.080.10 - Thermosetting materials
• Technical Committee: ISO/TC 61/SC 12 - Thermosetting materials
• Drafting Committee: ISO/TC 61/SC 12 - Thermosetting materials
• Current Stage: 9020 - International Standard under periodical review
• Start Date: 15-Jul-2024
• Completion Date: 15-Jul-2024

Relations

• Revises: ISO 15028:2004 - Plastics — Aromatic isocyanates for use in the production of polyurethanes — Determination of hydrolysable chlorine
• Effective Date: 26-Jan-2013

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 15028
Second edition
2014-02-15
Plastics — Aromatic isocyanates for
use in the production of polyurethanes
— Determination of hydrolysable
chlorine
Plastiques — Isocyanates aromatiques pour utilisation dans
la production de polyuréthannes — Détermination du chlore
hydrolysable
Reference number
©
ISO 2014
© ISO 2014
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ii © ISO 2014 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Interference . 2
6 Sampling . 2
7 Test conditions . 2
8 Reagents . 2
9 Apparatus . 2
10 Procedure. 3
11 Expression of results . 3
12 Precision and bias . 3
12.1 Precision . 3
12.2 Bias . 4
13 Test report . 4
Bibliography . 5
Foreword
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The committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 12, Thermosetting
materials.
This second edition cancels and replaces the first edition (ISO 15028:2004), which has been technically
revised.
iv © ISO 2014 – All rights reserved

Introduction
No International Standard for the determination of hydrolysable chlorine in isocyanates has been
published. The main sources of hydrolysable chlorine in isocyanates are carbamoyl chloride and dissolved
phosgene from the manufacturing process. Both of these compounds react with alcohols and water,
forming ureas, carbamates, carbon dioxide and hydrochloric acid. These acidic materials neutralize
basic catalysts used in polyurethane production, thus adversely affecting processing properties. This
test method is based on and is technically equivalent to ASTM D 4663.
INTERNATIONAL STANDARD ISO 15028:2014(E)
Plastics — Aromatic isocyanates for use in the production
of polyurethanes — Determination of hydrolysable
chlorine
SAFETY STATEMENT — Persons using this document should be familiar with normal laborat
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