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ASHRAE Datacom Series

Particulate and Gaseous Contamination in Datacom Environments

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Table of Contents


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 Center 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


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