Testex
  • Home
  • About Us
    • Our Aim and Vision
    • Our History
    • Our People
  • Services
  • Case Studies
  • Blog
  • Working For TesTex
  • Accreditations
  • Contact Us

Blog
UT on tank

Non- Intrusive Inspection

creative442021-05-24T11:01:52+01:00

Do you have vessels that for some reason you either can’t get physical access to the internals to fully inspect them, or you have a vessel that will cause needless and major unplanned costs should it be opened?

You won’t necessarily be surprised to hear that you’re not the only one. However, you may be surprised to hear that there may be an alternative for you and this may be Non-Intrusive Inspection.

The two methods that spring to mind are the API methodology API 510 6.5.2 or HOIS-G-103.

Each call for a number of requirements to be met before the vessel can be accepted for a Non-Intrusive Inspection. Such as known low corrosion rates, vessel remaining life >10 years, known corrosive character of the process fluid and more. All depending on the complexity of the process operation.

The external inspection and extent of NDT required for the vessel has to be such that it can find the known degradation mechanisms, that access can be established at the likely areas of degradation and that the level of coverage combine to give the required level of confidence in the examination.

One area where this has been used very successfully is with the management of Vapour Recovery Units. A number of owners are finding that life of their very expensive adsorbent is outlasting the intervals established by the Written schemes of Examination. This may be 20 to 25 years with Written Schemes of Examination prescribing a 10 to 15 years interval between internal inspections.

Using the principles of NII we have been able to establish levels of external examinations within the WSE that will maintain a satisfactory level of confidence in the vessels integrity until the adsorbent is spent and an opportune internal examination can be carried out.

This methodology has given the client total flexibility in the running of their Vapour Recovery Unit and huge savings.

Could this be done with your plant?

Share this post

Facebook Twitter LinkedIn Email

Related Posts

SHEQ

A View from SHEQ – what to watch out for in 2020

As a SHEQ Coordinator, it’s vital to keep abreast of corporate, regulatory and legislative changes including, general updates related to... read more

Image of Trevor Richardson

Asset Integrity- Evolving Systems for Industrial Plants & Refineries

As industry progresses through technological advancement, some Plants and Refineries, be it chemical, manufacturing, oil or other, have become increasingly... read more

Relief valve dead leg

HSE Safety Alert

Catastrophic Rupture of Dead-Leg Pipework  The HSE have circulated a document warning Process Plant Operators of the increased risks of primary... read more

ERDF and Smart Energy Logos

Our business is passionate about the environment

We have taken steps to reduce our energy consumption, lowering our carbon emissions for our loved local community. As a... read more

ukas inspection logo

TesTex NDT Ltd. UKAS Accreditation

In January 2018, TesTex NDT Ltd., one of the UK’s leading Inspection companies, announces it has been awarded ISO 17020 accreditation... read more

WSE pic

Important questions to ask regarding Written Schemes of Examination (WSE)

Written Schemes of Examination (WSE) are an important part of meeting the Pressure Systems Safety Regulations (PSSR) and the following... read more

Buried pipes

Protecting Buried Pipework from Corrosion – Part 1

At TesTex we hold quarterly Engineers Breakfast Meetings where we meet with local engineers to discuss issues they may be... read more

Asset Integrity Management

Written Schemes of Examination (WSE’s)

We are in the process of writing out to all of our customers, as a reminder that Written Schemes of... read more

Worker Using DPI Spray

Health and Safety Executive Approve New and Revised Workplace Exposure Limits (WELs)

Many people are exposed to a variety of substances at work (e.g chemicals, fumes, dusts, fibres) which can, under some... read more

Pulsed Eddy Current Technology for Corrosion Under Insulation

Pulsed Eddy Current Technology for Corrosion Under Insulation

When Corrosion Under Insulation (CUI) occurs, it can lead to a loss of primary containment and possible environmental contamination. Unfortunately, the insulation used... read more

testex-logo (1)
Our accreditation is limited to those activities described on our UKAS schedule of accreditation found here

TesTex NDT Ltd – Head Office
Maritime House
Lancaster Approach
North Killingholme
North Lincolnshire
DN40 3JZ

Tel: +44 (0) 1469 541586
Email: sales@testexndt.co.uk

Twitter Youtube Linkedin

TesTex NDT Ltd – Regional Office
Unit 24
Avonbank Industrial Estate
Avonmouth
Bristol
BS11 9DE
DN40 3JZ

Tel: +44 (0) 117 472 9242

© Copyright TesTex NDT Ltd. All Rights Reserved   | Privacy | T&Cs | Cookies
Website Design by The Creative Agencylogo
  • Home
  • About Us
    • Our Aim and Vision
    • Our History
    • Our People
  • Services
  • Case Studies
  • Blog
  • Working For TesTex
  • Accreditations
  • Contact Us
  • Engineers Forum Login