Recent Blog Posts

RAGAGEP: Historical Variants and the Importance of IIAR Standards | Part 4: Emergency Shutdown Controls

February 8th, 2022

Uriah Donaldson, OHST, presented a technical paper at the 2019 RETA National Conference and 2021 IIAR National Conference titled RAGAGEP: Historical Variants and the Importance of IIAR Standards. This is the fourth post in a series of blogs which include excerpts from his technical paper. Emergency Shutdown Controls Like we will see throughout this section with multiple […]

RAGAGEP: Historical Variants and the Importance of IIAR Standards | Part 3: The IIAR’s Vision for the Future

February 1st, 2022

Uriah Donaldson, OHST, presented a technical paper at the 2019 RETA National Conference and 2021 IIAR National Conference titled RAGAGEP: Historical Variants and the Importance of IIAR Standards.  This is the third post in a series of blogs which include excerpts from his technical paper.  The IIAR’s Vision for the Future Over the last several decades, […]

RAGAGEP: Historical Variants and the Importance of IIAR Standards | Part 2: Defining RAGAGEP and Historical Perspectives

January 25th, 2022

Uriah Donaldson, OHST, presented a technical paper at the 2019 RETA National Conference and 2021 IIAR National Conference titled RAGAGEP: Historical Variants and the Importance of IIAR Standards.  This is the second post in a series of blogs which include excerpts from his technical paper.  Defining RAGAGEP and Historical Perspectives The notable origin of the acronym RAGAGEP […]

RAGAGEP: Historical Variants and the Importance of IIAR Standards | Part 1: Introduction

January 18th, 2022

Uriah Donaldson, OHST, presented a technical paper at the 2019 RETA National Conference and 2021 IIAR National Conference titled RAGAGEP: Historical Variants and the Importance of IIAR Standards.  This is the first post in a series of blogs which include excerpts from his technical paper.  Introduction Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) are written […]

Can Ammonia Pipes Be Welded to Their Supports?

January 11th, 2022

We recently published a blog addressing various aspects of ANSI/IIAR 4-2020. On the topic of pipe supports, Standard 4 introduces a prohibition that was not previously included in the 2015 edition. ANSI/IIAR 4-2020 §6.1.2 requires that “Piping support systems shall be installed to retain pipe within the support. Pipe shall not be welded to supports […]