“RTP-1, A Standard for FRP Storage Tanks, The Intent and the Realities” Presented By: Jeffrey D. Eisenman, P.E. Maverick Applied Science, Inc.
[email protected] PH: (941) 721-1800
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General Outline
Introduction Background Perceptions regarding RTP-1 What is RTP-1? What does it do for me?
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General Outline cont’d
Qualifications Design in accordance with RTP-1 IAW RTP-1, but No Stamp! How do we get what we want?
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Introduction
Governed by ASME, Board of Pressure Technology Codes & Standards The Bible for FRP Tanks! RTP-1 is a national and international standard. The most comprehensive standard for FRP storage tanks. Specified around the world. 4
Background
First Published by ASME in 1989 Updated every 2 year, 2011 Currently 11 Certified for RTP-1 Maintained by an ASME Committee of industry related members Design Conditions from Full Vacuum to +15 PSI
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ASME RTP-1 Perception: Provides Good Quality, but Its Expensive!? Reality: Not Much More! ~0-10%
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ASME RTP-1 Perception: It’s only a design guideline, similar to ASTM D3299 Reality: It’s much more than that!
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What is ASME RTP-1?
A Safety Document! A Quality Control Document A Design Guideline A Fabrication Guideline
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What does it cover?
Communications • Users Basic Requirements Specification (UBRS) • Reporting, (Design, Inspection)
Materials • Qualification of Raw Materials • Definition of Standard Laminates • Design Basis Laminate Testing
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More of what it covers?
Design • Subpart 3A – Design by Rules • Subpart 3B – Design by Stress Analysis • Special guidelines above 16 ft Dia.
Fabrication • Definition of Primary Components • Specific requirements for Joints and Reinforcements, i.e. repads, and knuckles • Specific requirements for Flanges and Nozzle Installation 10
More of what it covers?
Inspection and Testing • Fabricator’s QC and QA Program • Documentation and Recordkeeping • Inspection Requirements • Description of Nonconformances and Remedy • Testing Requirements • Acceptance Criteria 11
More of what it covers?
Shop Qualifications • Material Tracking • Fabrication Methods • Demonstration Laminates • Proof Testing of Laminates • Quality Control Program • Certified Laminates and Bonders 12
More of what it covers?
Shop Certification • Surveyed and Certified by an ASME Team • Quality Control Manual – Review and on file with ASME • Shop must Construct and Successfully Test a Demonstration Vessel • Announced and Unannounced Audits • Recertified every 3 years 13
RTP-1 is a Comprehensive Quality Control Program for FRP Storage Tanks
Checks and Balances • Proof Testing for Design Basis Laminates • Design and Fabrication Validation • Quality Control Program with independent certification • Certified personnel 14
Reality: I want it designed in accordance with RTP-1.
What does that mean? What are the expectations?
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Reality: I want it designed in accordance with RTP-1.
What does that mean? What are the expectations?
I expect full compliance with RTP-1 Part 3, Design.
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I want it designed in accordance with RTP-1. What are the realities? Questions!
Does the manufacturer have a good understanding of RTP-1? Will a Professional Engineer perform the calculations? How will the assumptions for the material properties be verified? 17
I want it designed in accordance with RTP-1. What are the realities?
No worries about anything else? 18
Reality: I want it in accordance with RTP-1, but a stamp is not required.
What does that mean? What are the expectations?
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I want it in accordance with RTP-1, but a stamp is not required.
What does that mean? What are the expectations?
I expect full compliance with RTP-1 and RTP-1 quality, but can be built by a manufacturer that is not certified by ASME. 20
Reality: I want it in accordance with RTP-1, but a stamp is not required.
What does that mean?
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I want it in accordance with RTP1, but a stamp is not required. What are the realities?
Proven Material Properties? Qualified Fabrication Methods? Quality Control? Certified Laminators?
What am I getting???? 22
I want it in accordance with RTP1, but a stamp is not required. What am I getting????
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I think we can see there is significant value in an ASME RTP-1 Certified Tank.
Safety is always a concern. Reliable production is imperative. Makes sense from a risk management standpoint.
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If I don’t ask for an ASME RTP-1 Certified Tank, what can I do to meet expectations?
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If I don’t ask for an ASME RTP-1 Certified Tank, what can I do to meet expectations? The Owner or Owner’s Engineer has to take responsibility and a more active role in the procurement and quality assurance process.
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Additional Responsibilities of the Owner or Owner’s Engineer First:
Need a Comprehensive and Descriptive Specification Prequalify Capable Vendors, maybe a shop visit and audit.
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Additional Responsibilities of the Owner or Owner’s Engineer Design Concerns:
Design review of Calculations for Good FRP Engineering Practices Review of Fabrication Drawings for Compliance with RTP-1 and calcs Require and confirm Material Testing to validate design assumptions 28
Additional Responsibilities of the Owner or Owner’s Engineer Fabrication and Quality Control: The Owner’s Specification needs to provide for some checks and balances Fabrication Kick-off Meeting In-process inspections Review of fabrication and QC Documentation 29
Additional Responsibilities of the Owner or Owner’s Engineer Testing and Acceptance: Examine all cut-outs for laminate thicknesses and good quality Witness the Hydrostatic Testing Require submittal of all QC Documentation with Delivery 30
ASME RTP-1 Tanks? Certified Stamp: It’s a decision based on priorities and needs, but it should be an informed one. Don’t Assume!
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Thank You Jeff Eisenman, P.E. Maverick Applied Science, Inc.
[email protected] PH: (941) 721-1800
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