ASHRAE Datacom Series
Particulate and Gaseous Contamination in Datacom Environments
Table of Contents
Acknowledgments
Chapter 1 Introduction
1.1 General Description of Particulate Matter
1.2 General Description of Gaseous Contamination
1.3 Contaminant Sources
1.4 How Contaminants Settle on Equipment
1.5 Differences between Human Health and Datacom Equipment Concerns
1.6 Overview of Chapters
Chapter 2 Datacom Equipment Vulnerability
2.1 Introduction
2.2 Reasons for Increased Concern
2.2.1 Restriction of Hazardous Substances
2.3 Airborne Contamination Ingress Mechanisms
2.4 Particulate Matter Properties and Effects
2.4.1 Areas Susceptible to Particulate Matter Accumulation
2.5 Gaseous Contamination
2.5.1 Gas Properties
Chapter 3 Industry Specifications and Guidelines
3.1 Introduction
3.2 Published Guidelines and Limits for Particulate Matter
3.2.1 GR-63-CORE/NEBS—Telecommunications
3.2.2 IEC 60721-3-3
3.2.3 ISO 14644-1 Class 8
3.3 Published Guidelines and Limits for Gaseous Contaminants
Chapter 4 Prevention and Control
4.1 Introduction
4.2 Prevention
4.2.1 Risk Assessment
4.2.2 Facility Location
4.2.3 Computer Room Design
4.2.4 Computer Room Construction
4.2.5 HVAC System
4.2.6 Fire Suppression
4.2.7 Mechanical Malfunction
4.2.8 Operational Procedures
4.3 Contro
4.3.1 Monitoring
4.3.2 Equipment Failures—Severe
4.3.3 Equipment Failures—Nonsevere
4.3.4 Periodic Maintenance Plan
4.3.5 Nonroutine Events
4.4 Special Considerations Based on Datacom Equipment Centre Levels
Chapter 5 Contamination Testing and Analysis
5.1 Introduction
5.2 Airborne Particle Counts
5.3 Total Suspended Particulates
5.4 Mass Concentration
5.5 Corrosiveness of Particulate Matter
5.6 Volatile Organic Compounds
5.7 Real-time Gaseous Monitoring
5.8 Settled Dust Analysis
Chapter 6 Air-Side Economizers
6.1 Introduction
6.2 Implementing Air-Side Economizers
Chapter 7 Summary
Appendix A Proposed Datacom Environment Contamination Levels
Appendix B Field Contamination Occurrences
Appendix C Future Work
C.1 Objectives
C.2 Sampling Site
C.3 Sampling Periods
C.4 Experimental Methods
C.5 Analysis and Results
References and Bibliography
Glossary of Terms
Index