ASME N45.2.13-1976 — Quality Assurance Requirements for Control of Procurement of Items and Services for Nuclear Power Plants

📐 ANSI N45.2.13-1976 describes requirements and provides guidelines for the control of activities exercised during procurement of items and services that affect the quality of nuclear power plants. Developed by Work Group N45-2.13 under ANSI Committee N45 and approved by ANSI on February 27, 1976, it applies to procurement activities such as designing, purchasing, fabricating, handling, shipping, storing, cleaning, constructing, erecting, installing, inspecting, testing, maintaining, repairing, initial fueling, refueling, and modifying, and provides guidelines for applying ANSI N45.2 QA program requirements to total system supply, hardware, services, or combinations thereof.

1. Scope and Responsibility 📌

The Standard applies to the work of any individual or organization participating in the procurement of those items and services from which satisfactory performance is required. The extent to which individual requirements apply depends on the nature and scope of the work and the required quality of the purchased items or services. The responsibility clauses identify the roles of Purchaser and Supplier: an organization can be either, depending on the procurement level, but for any given procurement action it is one or the other.

2. Procurement Planning and Procurement Document Control 🔧

Procurement planning establishes the depth of QA measures based on the safety significance, complexity, and supplier capability for the item or service. Procurement documents — technical specifications, QA requirements, inspection/testing requirements, hold points, etc. — must be reviewed, approved, and change-controlled. Before issuance they should clearly define:

• Technical requirements, drawings, and referenced standards;
• Applicable QA program requirements (N45.2 and supplementary standards);
• Inspection, test, witness, and release/hold point arrangements;
• Requirements for quality records, certificates, and reports;
• Nonconformance handling and deviation permit provisions.

3. Supplier Selection, Evaluation, and Surveillance 🔩

The Standard requires evaluation and selection of suppliers: review of their QA programs, qualifications, past performance, and capability. During procurement execution, surveillance, inspection, and audit activities verify supplier performance; critical activities may have witness points and hold points at the supplier’s facility. Problems found are tracked for correction through controlled channels such as nonconformance reports (NCRs).

4. Receiving Inspection and Nonconformance Control 🛠️

Received items are inspected and accepted per the purchasing requirements; certificates, identification, and physical condition are checked, and items may be released for use only after conforming verification. Nonconforming items are segregated, identified, and dispositioned per procedure (rework, repair, use-as-is, or reject), with documented disposition results.

5. Engineering Practice Essentials 🛠️

• 🔍 Graded management: grade document depth and surveillance frequency by safety classification (e.g., Q-List) to avoid over- or under-control.
• 🔧 Review documents up front: perform technical, quality, and contractual reviews before issuance of procurement documents.
• 📊 Field surveillance plan: designate key manufacturing steps (welding, heat treatment, pressure testing) as witness points, notify in advance, and retain records.
• 📋 Closed-loop records: procurement records (evaluations, orders, certificates, inspections, NCR closures) are fully archived to support as-built documentation and regulatory review.

The QA clauses in procurement documents should match the safety classification of the item. For safety-class items, the documents should require the supplier to establish and implement a QA program, retain quality records, and accept owner surveillance; for non-safety items, simplified requirements may be used while still preserving essential inspection and documentation. Over-specifying wastes cost, while under-specifying introduces quality risk — graded application is the key to balancing the two.

Procurement documents should also define the evidence expected at delivery: material certificates, certified test reports, nondestructive examination records, calibration data, and as-built documentation, together with the format and retention period for each. Ambiguity here is a frequent source of receiving disputes, because the purchaser discovers only at delivery that the evidence needed to accept the item was never requested. The purchasing function should therefore maintain a delivery-evidence checklist per item class, review it during document preparation, and verify completeness at receiving — a practice that turns procurement control from a paper exercise into an effective gate against nonconforming material entering the plant.

6. Frequently Asked Questions ❓