What NORSOK L-001 covers
NORSOK standards are written by the Norwegian petroleum industry and published by Standards Norway (Standard Norge). NORSOK L-001 is titled "Piping and valves". Standards Norway lists Edition 4, published 1 January 2017, as current, and the 1999 edition as withdrawn (Standard Norge). Other NORSOK standards depend on it: NORSOK M-630, the material data sheets for piping, applies to piping selected according to L-001.
For a valve maker, L-001 usually reaches you through the piping class or valve reference the tender quotes, and through the NORSOK material and coating standards it brings with it. Read the requisition for the edition it names: a tender written against an older edition can refer to sheets or codes that have changed.
What JIP33 and IOGP S-562 are
JIP33 is a joint industry programme run by IOGP, the International Association of Oil & Gas Producers. IOGP started it in 2016 in response to project cost and schedule overruns of more than 40%. Its aim is to standardise procurement specifications so that operators stop issuing a different set of extra requirements on every project. Each JIP33 specification builds on an existing industry standard, and all of them are free to download (JIP33).
| Document | What it holds | What it means for your offer |
|---|---|---|
| Supplementary specification (technical requirements specification) | Requirements that add to, or modify, the industry standard | The technical requirements you check clause by clause, on top of the API standard |
| Procurement data sheet | The purchaser's selected options and project-specific details | The values for this order: the options the purchaser picked |
| Information requirements specification | Documents and data the supplier must deliver | Your document list and submission dates |
| Quality requirements specification | Quality management requirements and the purchaser's involvement in inspection and testing | Hold and witness points, inspection levels and their cost |
IOGP S-562 is the JIP33 specification for ball valves to API Specification 6D. The revision issued for public review in December 2024 follows API 6D 25th Edition (November 2021) with Addendum 2 (September 2024). It has the four documents above. It also has a version of the technical requirements with the reasoning behind each requirement (JIP33). The four documents, together with the purchase order, make up the technical specification. See API 6D explained for the base standard.
Why JIP33 matters for valve buyers and suppliers
- Fewer one-off requirements: when operators adopt the same supplementary specification, a supplier can qualify a design and its documents once and reuse that work across customers.
- A clear place for the purchaser's choices: options sit in the procurement data sheet, so the technical requirements stay the same from order to order.
- Documents and quality are separate: the information and quality requirements are their own documents, so your document list and inspection costs can be priced from them directly.
- The reasoning is published: the version with justifications explains why a requirement exists, which helps you judge whether a deviation is likely to be accepted.
- It is still not the whole tender: the project specification, the owner's own standards and the requisition can add to or override a JIP33 set. Check the order of precedence.
What to check in a vendor datasheet against a JIP33-based specification
| Check | Question to answer | Where the requirement usually sits |
|---|---|---|
| Documents and revisions | Which API 6D edition and addenda, and which S-562 revision, does the tender name? Do they match each other? | Requisition, project specification |
| Order of precedence | Does the project specification or an owner standard override the JIP33 set anywhere? | Requisition, project specification |
| Purchaser selections | Have you answered every option on the procurement data sheet, and does each answer match your design? | Procurement data sheet |
| Valve design | Mounting, seat arrangement, bore, ends and operator offered against what is selected | API 6D, data sheet |
| Materials | Body, trim, seats, bolting and sour-service requirements against your material lists | Supplementary specification, data sheet, NORSOK or owner material standards |
| Testing | Pressure tests, any supplementary tests and fugitive-emission tests such as ISO 15848-1 | API 6D, supplementary specification |
| Inspection and witness points | Which tests the purchaser witnesses or reviews, and at what inspection level | Quality requirements specification |
| Certificates | Inspection document type for each part, such as EN 10204 3.1 or 3.2 | Supplementary specification, quality requirements |
| Documents | Each document and data item, its format and when it is due | Information requirements specification |
Our datasheet vs specification checklist covers the remaining checks in order, and the compliance matrix template gives you one row per requirement to work through.
How to record deviations against a JIP33-based specification
Write the deviation list the usual way, one row per gap with the clause, requirement, offer, justification and cost of withdrawal. Then add one column: the document layer the requirement comes from. A buyer reviewing an offer against a JIP33 set wants to know straight away where each deviation sits. Is it against the industry standard, the common JIP33 requirements, a selection they made on the data sheet, or a project addition? These lead to different conversations.
| Layer | Clause | Requirement | Offered | Status | Justification | Cost of withdrawal |
|---|---|---|---|---|---|---|
| Base standard | PS-VAL-001-TRS §3.1 | Valve to API 6D, edition stated in the requisition | API 6D, edition as requested | Complies | None | Not applicable |
| Supplementary specification | PS-VAL-001-TRS §6.4 | Additional low-pressure gas seat test | Liquid seat test only | Deviation | Gas test rig not available for this size | Third-party gas test: +3%, +2 weeks |
| Data sheet selection | PS-VAL-001-PDS line 14 | Purchaser selected the seat arrangement shown on the data sheet | Standard seat arrangement | Deviation | Selected arrangement not qualified on this size | Requalification: +5%, +6 weeks |
| Quality requirements | PS-VAL-001-QRS §2.2 | Purchaser witnesses hydrostatic shell test | Shell test witnessed; seat test by review of records | Clarification | Confirm whether seat test witnessing is required | No cost |
| Information requirements | PS-VAL-001-IRS item 9 | Fugitive-emission type-test report with the offer | Report supplied after order | Clarification | Report available; confirm timing | No cost |
- Quote the exact document and line, including the data sheet line, not just the clause of the base standard.
- Where a JIP33 requirement is stricter than the API standard, say which one you meet. "Complies with API 6D" does not answer a supplementary requirement.
- Use the published justification to frame your case: if your design meets the purpose behind a requirement, say how.
- Keep one list per package. Start from the technical deviation list template, and read the technical deviation list guide for the full format.
Find every requirement before you start
Requirements for one valve can sit in five or more documents. Paste a section of the specification into the free spec requirement extractor to list the clauses and the standards it calls up, such as NORSOK L-001 and API 6D, in your browser. When the package is evaluated, the buyer will use something like the technical bid evaluation template; it helps to see your offer the way they will.
OdysseyGPT reads the whole package, including the data sheet and the quality and information requirements, and drafts a compliance matrix and deviation list with a source quote for every row. An engineer checks and decides each one. See OdysseyGPT for manufacturing and valve manufacturers.
Answering a JIP33-based valve tender?
Bring one past tender package to a demo and see the cited deviation list OdysseyGPT drafts from it. Managed plans are from $999/month.