MDI and TDI: Safety, Health and the Environment

MDI and TDI: Safety, Health and the Environment

A Source Book and Practical Guide

Allport, D. C.; Outterside, S. M.; Gilbert, D. S.

John Wiley & Sons Inc

03/2003

490

Dura

Inglês

9780471958123

15 a 20 dias

1022

Descrição não disponível.
List of authors and affiliations ix

A book of distinction xv

Acknowledgements xvii

MDI and TDI usage: responsible risk management 1
D C Allport, D S Gilbert and S M Outterside

Exposure, hazard and risk 1

Responsible Care (R): a framework for industry action 5

Reading 10

1 MDI, TDI and the polyurethane industry 11
D C Allport, D S Gilbert and S M Outterside

Types of MDI 13

Types of TDI 15

Test substances 16

Misapprehensions 16

Polyurethanes made from MDI and TDI 17

Reading 23

2 Handling MDI and TDI 25
D C Allport, R C Blake, C Bastian, C Galavitz, D S Gilbert, R Hurd, B Reeve, W Robert, S M Outterside, A Solinas, D Walsh, U Walber and H Wolfson

Pride in safety 25

Successful systems 25

Safety systems for the handling of MDI and TDI 26

Key Theme 1: Know your product 28

Health 31

Environment 32

Key Theme 2: Protecting health 33

Duty of care 33

Exposure: how can MDI or TDI enter the body? 34

Medical symptoms 35

Medical checks 36

Key Theme 3: Neutralization, decontamination and disposal of wastes 39

Types of neutralizer 40

Routine cleaning of equipment and drums 40

Neutralization after a spillage 43

Neutralizer formulations 46

Key Theme 4: Using personal protective equipment 47

Normal operations 47

Emergency situations 48

Selection of personal protective equipment 49

Protective clothing 50

Respiratory protection 51

Key Theme 5: Monitoring exposure 59

How should monitoring be carried out? 60

When should monitoring be carried out? 61

Key Theme 6: Dealing with accidents 62

Accidents can happen 62

Spillages 63

Development of excess pressure inside containers 68

Incidents involving fire 70

Transport of MDI and TDI 72

Transport regulations 73

MDI and TDI: transport temperatures 73

Typical containers for the transport of diisocyanates 75

Accidents and emergencies 85

The workplace: storage and use of MDI and TDI 86

Designing the systems and minimizing the risks 87

Physical and chemical properties relating to storage and processing 93

Storage of MDI and TDI 95

Safety issues in workplaces using MDI and TDI 106

Safety issues in some important polyurethane processes 117

Use of MDI and TDI in laboratories 122

Visitors to the workplace 123

Emergencies in the workplace 124

Releases to atmosphere from polyurethane manufacturing sites 126

Properties of MDI and TDI relevant to releases to atmosphere 127

Releases from polyurethane processes 127

Abatement of releases 138

Reading 148

3 Health 155
DC Allport, P Davies, W F Diller, J E Doe, F Floc'h H D Hoffmann, MKatoh and J P Lyon. Appendices by D I Bernstein

Perspective on immediate effects following over exposure 156

First aid procedures 156

Commentary on first aid procedures 157

Human health: the medical background 160

Effects on the eyes 163

Effects on the skin 163

Effects when swallowed 165

Effects on the respiratory tract 165

Other health effects of MDI and TDI 185

Biomonitoring of MDI and TDI 186

Experimental toxicology 187

The interaction of MDI and TDI with biological systems 188

Toxicology studies 193

Diagnosis of diisocyanate asthma 203

Appendices (David I. Bernstein) 203

Reading 216

4 The environment 229
RE Bailey, A Gard, K H den Haan, F Heimbach, D Pemberton, II Tadokoro, M Takatsuki and Y Yakabe

A general approach to environmental risk assessment 229

Exposure 233

Sources of exposure 233

Distribution and persistence 237

Biodegradation 256

Bioaccumulation 257

Hazard 258

Test procedures 258

Aquatic ecotoxicity 259

Terrestrial ecotoxicity 264

Risk assessment 265

Accidental release of MDI and TDI 266

Normal usage 268

Reading 273

5 Supporting sciences 277

5.1 Chemistry of manufacture of MDI and TDI 277
D C Allport, D S Gilbert and B Tury

Manufacture of MDI 277

Manufacture of TDI 280

Modified MDI and TDI 282

Reading 284

5.2 Structures and nomenclature 285
DC Allport, D S Gilbert and B Tury

Structures 285

CAS Registry numbers and preferred names 286

IUPAC names 287

Convenient names for MDI and TDI 288

Synonyms 289

Commercial product names 289

Reading 291

5.3 Chemical reactions of MDI and TDI 291
DC Allport, D S Gilbert, D Pemberton and B Tury

Reaction with -OH groups 292

Reaction with -NH groups 293

Reaction with -SH groups 293

Reaction with biological molecules 294

Self-reactions 295

Catalysts 298

Reading 299

5.4 Physical and fire properties 300
SM Outterside and D Pemberton

MDI 301

TDI 311

Reading 319

5.5 Fire behaviour of MDI and TDI 321
J F Chapman, B Cope, G Marlair and F Prager

Test methodology 321

Fire tests on MDI and TDI 323

Reading 340

5.6 Occupational exposure limits, stack limits and community limits 343
D C Allport, D S Gilbert, S M Outterside and B Tury

Occupational exposure limits 343

Stack release limits and community limits 351

Reading 357

5.7 Sampling and analysis 358
K S Brenner, V Dharmarajan and P Maddison

Materials to be measured 358

Airborne MDI and TDI species 359

Choice of methods for the sampling and analysis of MDI and TDI in air 360

Analysis of nonairborne MDI and TDI 418

A critical review of exposure assessment techniques used in occupational health studies of MDI and TDI 420

Reading 422

Index 431
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