ASME B31.9 : 2014

Foreword
Committee Roster
Introduction
Summary of Changes
Chapter I - Scope and Definitions
Chapter II - Design
PART 1 - Conditions and Criteria
PART 2 - Pressure Design of Piping Components
PART 3 - Selection and Limitation of Components
PART 4 - Selection and Limitation of Joints
PART 5 - Expansion, Flexibility, and Support
PART 6 - Systems
Chapter III - Materials
Chapter IV - Component Requirements and Standard Practices
Chapter V - Fabrication, Assembly, and Erection
Chapter VI - Inspection, Examination, and Testing
Mandatory Appendices
I - Stress Tables
II - Allowable Pressures for Nonmetallic, Nonplastic Pressure Piping
III - Reference Standards
IV - Preparation of Technical Inquiries
Nonmandatory Appendices
A - Nonmandatory Quality System Program
B - Seismic Design and Retrofit of Piping Systems

ASME B31.9 has rules for piping in industrial, institutional, commercial and public buildings, and multi-unit residences, which does not require the range of sizes, pressures, and temperatures covered in ASME?s B31.1 Code for Power Piping. It includes piping systems either in the building or within the property limits. Key changes to this revision include updating referenced specifications and adding new thermoplastic pipe materials. This Code prescribes comprehensive solutions for the design, materials, fabrication, installation, inspection, examination and testing of piping systems for building services. It joins with ASME?s many other safety standards governing the building and construction industry, including the A17 series on elevators and escalators; the B30 series on cranes, hoists and lifts; and the A112 series on plumbing. B31.9 also serves as a companion to ASME?s other B31 codes on piping systems. Together, they remain essential references for anyone engaged with piping.