{"id":11179,"date":"2024-10-16T20:39:15","date_gmt":"2024-10-16T20:39:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/nfpa-68-2007\/"},"modified":"2024-10-24T11:27:20","modified_gmt":"2024-10-24T11:27:20","slug":"nfpa-68-2007","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/nfpa\/nfpa-68-2007\/","title":{"rendered":"NFPA 68 2007"},"content":{"rendered":"<p><strong>Industrial fire protection and fire safety depends on correct application of <em>NFPA 68.<\/em><\/strong><\/p>\n<p>Revised from a Guide to a Standard for 2007, <em>NFPA 68<\/em> applies to the design, location, installation, maintenance, and use of devices and systems that vent the combustion gases and pressures resulting from a deflagration within an enclosure so that structural and mechanical damage is minimized. As part of its revision, the Standard includes a performance-based option, including two new chapters supporting the performance-based aspect.<\/p>\n<p><strong>Other important updates for 2007:<\/strong><\/p>\n<ul>\n<li>The general equation for determining the required vent area for a dust explosion is revised based upon correlations with additional experimental data. This provides improved correlation for dust explosions using typical industrial process conditions.<\/li>\n<\/ul>\n<ul>\n<li>Special conditions such as treatment for panel inertia, partial volume explosions, and elevated pressure are refined based upon experimental data review.<\/li>\n<\/ul>\n<ul>\n<li>Chapter 11 on Inspection and Maintenance is expanded to include management of change and training.<\/li>\n<\/ul>\n<p>The Standard&#8217;s new and updated definitions are essential to characterizing deflagration hazards.<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>4<b><\/td>\n<td>2.1 General <br \/> 2.1 General <br \/> 2.2 NFPA Publications <br \/> 2.2 NFPA Publications  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>Chapter 1 Administration <br \/> Chapter 1 Administration <br \/> 1.1 Scope <br \/> 1.1 Scope <br \/> 1.2 Purpose <br \/> 1.2 Purpose <br \/> 1.3 Application <br \/> 1.3 Application <br \/> 1.4 Equivalency <br \/> 1.4 Equivalency <br \/> 1.5 Retroactivity <br \/> 1.5 Retroactivity <br \/> 1.6 Conversion Factors <br \/> 1.6 Conversion Factors  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>1.7 Symbols <br \/> 1.7 Symbols <br \/> 1.8 Pressure <br \/> 1.8 Pressure <br \/> Chapter 2 Referenced Publications <br \/> Chapter 2 Referenced Publications <br \/> 2.3 Other Publications <br \/> 2.3 Other Publications <br \/> 2.4 References for Extracts in Mandatory Sections <br \/> 2.4 References for Extracts in Mandatory Sections  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>Chapter 3 Definitions <br \/> Chapter 3 Definitions <br \/> 3.1 General <br \/> 3.1 General <br \/> 3.2 NFPA Official Definitions <br \/> 3.2 NFPA Official Definitions <br \/> 3.3 General Definitions <br \/> 3.3 General Definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>Chapter 4 General Requirements <br \/> Chapter 4 General Requirements <br \/> 4.1 Goal <br \/> 4.1 Goal <br \/> 4.2 Objectives <br \/> 4.2 Objectives <br \/> 4.3 Compliance Options <br \/> 4.3 Compliance Options <br \/> Chapter 5 Performance-Based Design Option <br \/> Chapter 5 Performance-Based Design Option <br \/> 5.1 General Requirements <br \/> 5.1 General Requirements  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>5.2 Performance Criteria <br \/> 5.2 Performance Criteria <br \/> Chapter 6 Fundamentals of Venting of Deflagrations <br \/> Chapter 6 Fundamentals of Venting of Deflagrations <br \/> 6.1 Basic Concepts <br \/> 6.1 Basic Concepts <br \/> 6.2 Mixtures <br \/> 6.2 Mixtures <br \/> 6.3 Enclosure Design and Support <br \/> 6.3 Enclosure Design and Support  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>6.4 Enclosure Length-to-Diameter Ratio and Vent Variables <br \/> 6.4 Enclosure Length-to-Diameter Ratio and Vent Variables <br \/> 6.5 Vent Closure Operation <br \/> 6.5 Vent Closure Operation  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>6.6 Consequences of a Deflagration <br \/> 6.6 Consequences of a Deflagration <br \/> 6.7 Effects of Vent Inertia <br \/> 6.7 Effects of Vent Inertia <br \/> 6.8 Effects of Vent Discharge Ducts <br \/> 6.8 Effects of Vent Discharge Ducts  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>6.9 Venting with Flame Arresting and Particulate Retention <br \/> 6.9 Venting with Flame Arresting and Particulate Retention <br \/> Chapter 7 Venting Deflagrations of Gas Mixtures and Mists <br \/> Chapter 7 Venting Deflagrations of Gas Mixtures and Mists <br \/> 7.1 Introduction <br \/> 7.1 Introduction <br \/> 7.2 Venting of Gas or Mist Deflagration in Low-Strength Enclosures <br \/> 7.2 Venting of Gas or Mist Deflagration in Low-Strength Enclosures  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>7.3 Venting of Gas or Mist Deflagration in High-Strength Enclosures <br \/> 7.3 Venting of Gas or Mist Deflagration in High-Strength Enclosures  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>7.4 Effects of Vent Ducts <br \/> 7.4 Effects of Vent Ducts <br \/> 7.5 Effects of Initial Turbulence and Internal Appurtenances for Enclosures with Initial Pressures Near Atmospheric <br \/> 7.5 Effects of Initial Turbulence and Internal Appurtenances for Enclosures with Initial Pressures Near Atmospheric <br \/> 7.6 Effects of Initial Elevated Pressure <br \/> 7.6 Effects of Initial Elevated Pressure  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>Chapter 8 Venting of Deflagrations of Dusts and Hybrid Mixtures <br \/> Chapter 8 Venting of Deflagrations of Dusts and Hybrid Mixtures <br \/> 8.1 Introduction <br \/> 8.1 Introduction <br \/> 8.2 Venting by Means of Low-Inertia Vent Closures <br \/> 8.2 Venting by Means of Low-Inertia Vent Closures  <\/td>\n<\/tr>\n<tr>\n<td><b>22<b><\/td>\n<td>8.3 Effects of Partial Volume <br \/> 8.3 Effects of Partial Volume  <\/td>\n<\/tr>\n<tr>\n<td><b>23<b><\/td>\n<td>8.4 Effects of Initially Elevated Pressure <br \/> 8.4 Effects of Initially Elevated Pressure  <\/td>\n<\/tr>\n<tr>\n<td><b>24<b><\/td>\n<td>8.5 Effects of Vent Ducts <br \/> 8.5 Effects of Vent Ducts <br \/> 8.6 Bins, Hoppers, and Silos <br \/> 8.6 Bins, Hoppers, and Silos  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>8.7 Venting of Dust Collectors Using Bags, Filters, or Cartridges <br \/> 8.7 Venting of Dust Collectors Using Bags, Filters, or Cartridges  <\/td>\n<\/tr>\n<tr>\n<td><b>26<b><\/td>\n<td>8.8 Fireball Dimensions <br \/> 8.8 Fireball Dimensions  <\/td>\n<\/tr>\n<tr>\n<td><b>27<b><\/td>\n<td>8.9 Venting Internal to a Building with Flame-Arresting and Particulate-Retention Device <br \/> 8.9 Venting Internal to a Building with Flame-Arresting and Particulate-Retention Device <br \/> 8.10 Deflagration Venting of Enclosures Interconnected with Pipelines <br \/> 8.10 Deflagration Venting of Enclosures Interconnected with Pipelines <br \/> Chapter 9 Venting of Deflagrations of Gases and Dusts in Pipes and Ducts Operating at or Near Atmospheric Pressure <br \/> Chapter 9 Venting of Deflagrations of Gases and Dusts in Pipes and Ducts Operating at or Near Atmospheric Pressure <br \/> 9.1 Introduction <br \/> 9.1 Introduction <br \/> 9.2 Design <br \/> 9.2 Design  <\/td>\n<\/tr>\n<tr>\n<td><b>28<b><\/td>\n<td>9.3 Multiple Deflagration Vents on a Pipe or Duct <br \/> 9.3 Multiple Deflagration Vents on a Pipe or Duct  <\/td>\n<\/tr>\n<tr>\n<td><b>29<b><\/td>\n<td>Chapter 10 Details of Deflagration Vents and Vent Closures <br \/> Chapter 10 Details of Deflagration Vents and Vent Closures <br \/> 10.1 Normally Open Vents <br \/> 10.1 Normally Open Vents <br \/> 10.2 Normally Closed Vents <br \/> 10.2 Normally Closed Vents <br \/> 10.3 Types of Building or Room Vent Closures <br \/> 10.3 Types of Building or Room Vent Closures <br \/> 10.4 Restraints for Large Panels <br \/> 10.4 Restraints for Large Panels <br \/> 10.5 Equipment Vent Closures <br \/> 10.5 Equipment Vent Closures  <\/td>\n<\/tr>\n<tr>\n<td><b>30<b><\/td>\n<td>10.6 Flame-Arresting and Particulate-Retention Vent Systems <br \/> 10.6 Flame-Arresting and Particulate-Retention Vent Systems <br \/> Chapter 11 Inspection and Maintenance <br \/> Chapter 11 Inspection and Maintenance <br \/> 11.1 General <br \/> 11.1 General <br \/> 11.2 Design Parameters and Documentation <br \/> 11.2 Design Parameters and Documentation <br \/> 11.3 Installation <br \/> 11.3 Installation  <\/td>\n<\/tr>\n<tr>\n<td><b>31<b><\/td>\n<td>11.4 Inspection <br \/> 11.4 Inspection <br \/> 11.5 Vent Closure Design Parameters <br \/> 11.5 Vent Closure Design Parameters <br \/> 11.6 Inspection Reports <br \/> 11.6 Inspection Reports <br \/> 11.7 Record Keeping <br \/> 11.7 Record Keeping <br \/> 11.8 Management of Change <br \/> 11.8 Management of Change <br \/> 11.9 Maintenance <br \/> 11.9 Maintenance <br \/> 11.10 Employee Training <br \/> 11.10 Employee Training  <\/td>\n<\/tr>\n<tr>\n<td><b>32<b><\/td>\n<td>Annex A Explanatory Material <br \/> Annex A Explanatory Material  <\/td>\n<\/tr>\n<tr>\n<td><b>55<b><\/td>\n<td>Annex B Fundamentals of Deflagration <br \/> Annex B Fundamentals of Deflagration  <\/td>\n<\/tr>\n<tr>\n<td><b>59<b><\/td>\n<td>Annex C Guidelines for Measuring Deflagration Indices of Dusts and Gases <br \/> Annex C Guidelines for Measuring Deflagration Indices of Dusts and Gases  <\/td>\n<\/tr>\n<tr>\n<td><b>63<b><\/td>\n<td>Annex D Fundamental Burning Velocities for Select Flammable Gases in Air <br \/> Annex D Fundamental Burning Velocities for Select Flammable Gases in Air  <\/td>\n<\/tr>\n<tr>\n<td><b>65<b><\/td>\n<td>Annex E Deflagration Characteristics of Select Flammable Gases <br \/> Annex E Deflagration Characteristics of Select Flammable Gases  <\/td>\n<\/tr>\n<tr>\n<td><b>66<b><\/td>\n<td>Annex F Deflagration Characteristics of Select Combustible Dusts <br \/> Annex F Deflagration Characteristics of Select Combustible Dusts  <\/td>\n<\/tr>\n<tr>\n<td><b>68<b><\/td>\n<td>Annex G Calculation Method for Correction Factor Due to Increased Vent Panel Mass <br \/> Annex G Calculation Method for Correction Factor Due to Increased Vent Panel Mass  <\/td>\n<\/tr>\n<tr>\n<td><b>71<b><\/td>\n<td>Annex H Alternative Vent Area Methodology <br \/> Annex H Alternative Vent Area Methodology  <\/td>\n<\/tr>\n<tr>\n<td><b>75<b><\/td>\n<td>Annex I Research Reports and Supporting Documents <br \/> Annex I Research Reports and Supporting Documents <br \/> Annex J Effect of Partial Volumes on Buildings \u2014 Example Problem <br \/> Annex J Effect of Partial Volumes on Buildings \u2014 Example Problem  <\/td>\n<\/tr>\n<tr>\n<td><b>76<b><\/td>\n<td>Annex K Bibliography <br \/> Annex K Bibliography  <\/td>\n<\/tr>\n<tr>\n<td><b>79<b><\/td>\n<td>Annex L Informational References <br \/> Annex L Informational References  <\/td>\n<\/tr>\n<tr>\n<td><b>81<b><\/td>\n<td>Index <br \/> Index  <\/td>\n<\/tr>\n<tr>\n<td><b>86<b><\/td>\n<td>Tentative Interim Amendment <br \/> Tentative Interim Amendment  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b> Standard on Explosion Protection by Deflagration Venting<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/nfpa\/\"><b>NFPA<\/b><\/a><\/td>\n<td>2007<\/td>\n<td>92<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":11180,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2638],"product_tag":[],"class_list":{"0":"post-11179","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-nfpa","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/11179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/11180"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=11179"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=11179"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=11179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}