UTComp presents on FRP fitness for service at Chlorine Institute 2022 Fall Meeting

September 14, 2022

UTComp founder and CTO Geoff Clarkson provided best practices for assessing fitness for service of fiber-reinforced polymer (FRP) equipment in a talk at The Chlorine Institute’s industry consortium meeting in San Antonio, Texas Sept. 13, 2022.

The CI meeting is a key forum for the transfer of leading technology, safe handling practices and regulatory information for member companies involved in the safe production, distribution and use of chlorine, sodium and potassium hydroxide, sodium hypochlorite and hydrochloric acid.

FRP tanks, pipes and other assets are used to store and transport these important industrial chemicals. FRP is ideal for the task due to its superior corrosion-resistance, high strength-to-weight ratios and durability. FRP enables the equipment to withstand constantly changing environmental loads and variable pressures from repeated filling and emptying.

Reliable inspection of these FRP assets is essential to avoid failures and ensure the safety of both workers and the environment.

Geoff’s talk on Fitness for Service of FRP & Composite Assets covered:

  • Composite materials overview (standards and codes, construction, definitions)
  • Damage mechanisms
  • Fitness for service and assessment

Case studies: non-destructive testing of FRP equipment with chlorine applications

See the following case studies for more information on UltraAnalytix non-destructive testing for FRP equipment in industries ranging from pulp and paper to chemical processing to wastewater treatment:

  • Inspection of a hydrogen chloride scrubber tank at a combined heat-power plant for one of Denmark’s largest district heating companies.
  • Mechanical integrity and engineering review of a FRP tank used to store spent hydrochloric acid.
  • Inspection of FRP panels on a bleach washer at a pulp and paper mill.
  • External inspection of seal tanks in the bleach plant at a pulp and paper mill.
  • Structural evaluation of an atmospheric storage tank used for ferric chloride at a wastewater treatment facility.
  • Comparison of UltraAnalytix NDT and destructive testing on a retired FRP scrubber used to clean vented vapours for a multinational chemical corporation.

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Non-Destructive Evaluation (NDE) Methods for FRP

Comparison of NDE methods for determining Remaining Strength Factor of FRP for completion of Assessment as per proposed Part 16 update to API 579-1/ASME FFS-1:

NDE Method
Acoustic Emission (AE)
Acousto-ultrasonics (AU)
Attenuation-based ultrasonics (UAX)
UltraAnalytix (UAX+)
Applicable Standard
ASTM E1067
ASTM E1495
ASTM C1332¹
Combines ASTM C1332 & E1495
Inspector Certification Available
ISO, ASNT, SNT-TC-1A
SNT-TC-1A
SNT-TC-1A
SNT-TC-1A
Included in ISO or ASNT Training



Number of Calibration Specimens Required for an Inspection
0
1 or 2
2
0
Destructive Testing and Analysis of Calibration Specimens Required



Available Equipment Provides Output Values



Automated Processing for PDS Available



Remaining Strength Factor and Remaining Life Provided