{"id":180230,"date":"2024-10-19T11:15:12","date_gmt":"2024-10-19T11:15:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/nfpa-68-2018\/"},"modified":"2024-10-25T03:32:43","modified_gmt":"2024-10-25T03:32:43","slug":"nfpa-68-2018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/nfpa\/nfpa-68-2018\/","title":{"rendered":"NFPA 68 2018"},"content":{"rendered":"

This standard 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.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nImportant Notices and Disclaimers <\/td>\n<\/tr>\n
3<\/td>\nAdditional Notices and Disclaimers <\/td>\n<\/tr>\n
8<\/td>\nChapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Application.
1.4 Retroactivity.
1.5 Equivalency.
1.6 Conversion Factors. <\/td>\n<\/tr>\n
9<\/td>\n1.7 Symbols.
1.8 Pressure.
Chapter 2 Referenced Publications
2.1 General.
2.2 NFPA Publications. <\/td>\n<\/tr>\n
10<\/td>\n2.3 Other Publications.
2.4 References for Extracts in Mandatory Sections.
Chapter 3 Definitions
3.1 General.
3.2 NFPA Official Definitions.
3.3 General Definitions. <\/td>\n<\/tr>\n
12<\/td>\nChapter 4 General Requirements
4.1 Goal.
4.2 Objectives.
4.3 Compliance Options.
Chapter 5 Performance-Based Design Option
5.1 General Requirements.
5.2 Performance Criteria. <\/td>\n<\/tr>\n
13<\/td>\nChapter 6 Fundamentals of Venting of Deflagrations
6.1 Basic Concepts.
6.2 Mixtures.
6.3 Enclosure Design and Support. <\/td>\n<\/tr>\n
15<\/td>\n6.4 Enclosure Length-to-Diameter Ratio and Vent Variables. <\/td>\n<\/tr>\n
16<\/td>\n6.5 Vent Closure Operation.
6.6 Consequences of a Deflagration.
6.7 Effects of Vent Inertia. <\/td>\n<\/tr>\n
17<\/td>\n6.8 Effects of Vent Discharge Ducts.
6.9 Venting with Flame Arresting and Particulate Retention. <\/td>\n<\/tr>\n
18<\/td>\nChapter 7 Venting Deflagrations of Gas Mixtures and Mists
7.1 Introduction.
7.2 Venting by Means of Low Inertia Vent Closures. <\/td>\n<\/tr>\n
20<\/td>\n7.3 Partial Volume Effects. <\/td>\n<\/tr>\n
21<\/td>\n7.4 Effects of Panel Inertia.
7.5 Effects of Vent Ducts. <\/td>\n<\/tr>\n
22<\/td>\n7.6 Fireball Dimensions.
7.7 Deflagration Venting of Enclosures Interconnected with Pipelines.
Chapter 8 Venting of Deflagrations of Dusts and Hybrid Mixtures
8.1 Introduction.
8.2 Venting by Means of Low-Inertia Vent Closures. <\/td>\n<\/tr>\n
24<\/td>\n8.3 Effects of Panel Inertia.
8.4 Effects of Partial Volume. <\/td>\n<\/tr>\n
26<\/td>\n8.5 Effects of Vent Ducts. <\/td>\n<\/tr>\n
27<\/td>\n8.6 Bins, Hoppers, and Silos.
8.7 Venting of Dust Collectors Using Bags, Filters, or Cartridges. <\/td>\n<\/tr>\n
28<\/td>\n8.8 Bucket Elevators.
8.9 Fireball Dimensions. <\/td>\n<\/tr>\n
29<\/td>\n8.10 Venting Internal to a Building with Flame-Arresting and Particulate Retention Device.
8.11 Venting Silos or Other Storage Vessel Provided with Integral Bin Vents. <\/td>\n<\/tr>\n
30<\/td>\n8.12 Deflagration Venting of Enclosures Interconnected with Pipelines.
Chapter 9 Venting of Deflagrations of Gases and Dusts in Pipes and Ducts Operating at or Near Atmospheric Pressure
9.1 Introduction.
9.2 Design. <\/td>\n<\/tr>\n
31<\/td>\n9.3 Multiple Deflagration Vents on a Pipe or Duct. <\/td>\n<\/tr>\n
32<\/td>\nChapter 10 Details of Deflagration Vents and Vent Closures
10.1 Normally Open Vents.
10.2 Normally Closed Vents.
10.3 Types of Building or Room Vent Closures.
10.4 Restraints for Large Panels.
10.5 Equipment Vent Closures. <\/td>\n<\/tr>\n
33<\/td>\nChapter 11 Inspection and Maintenance
11.1 General.
11.2 Design Parameters and Documentation.
11.3 Installation.
11.4 Inspection. <\/td>\n<\/tr>\n
34<\/td>\n11.5 Procedures Following Vent Closure Actuation.
11.6 Vent Closure Design Parameters.
11.7 Inspection Reports.
11.8 Recordkeeping.
11.9 Management of Change.
11.10 Maintenance.
11.11 Employee Training. <\/td>\n<\/tr>\n
35<\/td>\nAnnex A Explanatory Material <\/td>\n<\/tr>\n
64<\/td>\nAnnex B Fundamentals of Deflagration <\/td>\n<\/tr>\n
69<\/td>\nAnnex C Guidelines for Measuring Deflagration Parameters of Dusts <\/td>\n<\/tr>\n
72<\/td>\nAnnex D Deflagration Characteristics of Select Flammable Gases <\/td>\n<\/tr>\n
74<\/td>\nAnnex E Estimating Fundamental Burning Velocity <\/td>\n<\/tr>\n
75<\/td>\nAnnex F Deflagration Characteristics of Select Combustible Dusts <\/td>\n<\/tr>\n
77<\/td>\nAnnex G Calculation Method for Correction Factor Due to Increased Vent Panel Mass <\/td>\n<\/tr>\n
80<\/td>\nAnnex H Research Reports and Supporting Documents <\/td>\n<\/tr>\n
81<\/td>\nAnnex I Full and Partial Volume Gas Venting of a Building \u2014 Example Problem <\/td>\n<\/tr>\n
87<\/td>\nAnnex J Effect of Dust Partial Volumes on Venting of Buildings \u2014 Example Problem <\/td>\n<\/tr>\n
88<\/td>\nAnnex K Bibliography <\/td>\n<\/tr>\n
91<\/td>\nAnnex L Informational References <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

NFPA 68: Standard on Explosion Protection by Deflagration Venting<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
NFPA<\/b><\/a><\/td>\n2018<\/td>\n100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":180234,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2638],"product_tag":[],"class_list":{"0":"post-180230","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\/180230","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\/180234"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=180230"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=180230"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=180230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}