SIST EN ISO 16961:2024/oprA1:2026

• Status: Not Published
• Public Enquiry End Date: 19-Jul-2026
• ICS: 25.220.99 - Other treatments and coatings
• ICS: 75.200 - Petroleum products and natural gas handling equipment
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 22-May-2026
• Due Date: 09-Oct-2026
• Completion Date: 22-Jul-2026
• Ref Project: EN ISO 16961:2024/prA1 - Oil and gas industries including lower carbon energy - Internal coating and lining of steel storage tanks - Amendment 1 (ISO 16961:2024/DAM 1:2026)

• Amends: SIST EN ISO 16961:2024 - Oil and gas industries including lower carbon energy - Internal coating and lining of steel storage tanks (ISO 16961:2024)
• Effective Date: 04-Mar-2026

Overview

SIST EN ISO 16961:2024/oprA1:2026 is an important amendment to the standard ISO 16961, focused on the oil and gas industries including lower carbon energy. This amendment specifically addresses the internal coating and lining of steel storage tanks, introducing updated material references and additional test protocols. The amendment further aligns industry requirements for protective coatings and linings, supporting improved safety, environmental protection, and asset integrity for aboveground steel storage tanks used in petroleum, natural gas, and lower carbon energy sectors.

Key Topics

• Updated Normative References: The amendment replaces earlier references, such as updating from ISO 15234 to ISO 15184:2020, ensuring that the standard aligns with the latest in coating hardness and performance testing.
• Expanded Testing Requirements: Annex E introduces new guidelines for standard liquid and gas compositions to be used in pre-qualification testing of coatings and linings. This includes hydrocarbons, glycol, seawater, gasoline, and other substances commonly stored in steel tanks.
• Amendment to Table 1 and Documentation: Instructions are included to clarify the requirements in Table 1 and add the applicability of new testing compositions as referenced in Annex E.
• Inclusion of International Standards: The amendment encourages cross-alignment with emerging international standards for coating system selection and performance evaluation.

Applications

The amendment enhances the practical implementation of internal coatings and linings for various types of steel storage tanks used in:

• Oil and Gas Storage: Addressing the need for robust coatings that protect tanks storing crude oil, gas condensate, and refined products.
• Lower Carbon Energy Sector: Ensuring compatibility for tanks used in the storage of alternative fuels and chemicals as part of the energy transition.
• Petrochemical and Chemical Processing: Supporting safe storage of substances such as ethanol, glycol, seawater, and aviation fuel.
• Quality Assurance and Asset Integrity: Providing standardized material specifications and testing, which helps operators achieve consistent long-term performance and reduces maintenance frequency.
• Regulatory and Procurement Compliance: Facilitating conformity with both international and local legislation regarding the storage and handling of hazardous or sensitive liquids and gases.

Related Standards

• ISO 15184:2020: Paints and varnishes - Determination of film hardness by pencil test.
• ISO 18796-2:2025: Oil and gas industries including lower carbon energy - Internal coating of carbon steel process vessels - Part 2: Requirements and guidance for the selection of coating systems.
• EN 228:2008: Automotive fuels - Unleaded petrol - Requirements and test methods.

Conclusion

SIST EN ISO 16961:2024/oprA1:2026 directly supports the safe and durable operation of steel storage tanks in the oil, gas, and lower carbon energy industries by updating internal coating and lining practices. By introducing standardized liquid and gas compositions for testing and aligning references with the latest standards, the amendment enhances reliability, performance, and regulatory coherence for tank owners, operators, and coating manufacturers.

Keywords: oil and gas industry standard, steel storage tank coating, internal lining, lower carbon energy, ISO 16961 amendment, storage tank protection, coating pre-qualification testing, asset integrity, international standardization.

SLOVENSKI STANDARD
01-julij-2026
Naftna in plinska industrija, vključno z nizkoogljično energijo - Notranji premazi in
obloge jeklenih rezervoarjev za shranjevanje - Dopolnilo A1 (ISO 16961:2024/DAM
1:2026)
Oil and gas industries including lower carbon energy - Internal coating and lining of steel
storage tanks - Amendment 1 (ISO 16961:2024/DAM 1:2026)
Öl- und Gasindustrie einschließlich kohlenstoffarmer Energieträger - Innere
Schutzbeschichtungen und Auskleidungen für überirdische Stahltanklager - Änderung 1
(ISO 16961:2024/DAM 1:2026)
Industries du pétrole et du gaz y compris les énergies à faible teneur en carbone -
Revêtement intérieur et doublure interne des réservoirs de stockage en acier -
Amendement 1 (ISO 16961:2024/DAM 1:2026)
Ta slovenski standard je istoveten z: EN ISO 16961:2024/prA1
ICS:
25.220.99 Druge obdelave in prevleke Other treatments and
coatings
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
Amendment
ISO 16961:2024/
DAM 1
ISO/TC 67
Oil and gas industries including
Secretariat: NEN
lower carbon energy — Internal
coating and lining of steel storage
Voting begins on:
2026-05-04
tanks
Voting terminates on:
AMENDMENT 1 2026-07-27
ICS: 75.200
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
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USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
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POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
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RECIPIENTS OF THIS DRAFT ARE INVITED
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NOTIFICATION OF ANY RELEVANT PATENT
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Reference number
ISO 16961:2024/DAM 1:2026(en)
DRAFT
ISO 16961:2024/DAM 1:2026(en)
Amendment
ISO 16961:2024/
DAM 1
ISO/TC 67
Oil and gas industries including
Secretariat: NEN
lower carbon energy — Internal
coating and lining of steel storage
Voting begins on:
tanks
Voting terminates on:
AMENDMENT 1
ICS: 75.200
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2026
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
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BE CONSIDERED IN THE LIGHT OF THEIR
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RECIPIENTS OF THIS DRAFT ARE INVITED
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Published in Switzerland Reference number
ISO 16961:2024/DAM 1:2026(en)
ii
ISO 16961:2024/DAM 1:2026(en)
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