Section 15 — Inspection
QA/QC Procedures for Gaskets
IPE Engineering Practice IPE-EP-15-5-5
Document number: IPE-EP-15-5-5 · Section: 15 — Inspection
SCOPE
- This Practice provides instructions for the receiving inspection of gaskets.
- This instruction shall be applicable for all diameters of solid, wrapped, and composite gaskets and hexagonal or oval rings for installation in a ring type joint.
- A revision bar indicates all changes made to this Revision.
2.0 REFERENCES
The latest edition of the following standards and publications are referred to herein.
STANDARDS AND PUBLICATIONS
| IPE Engineering Practices |
EP 5–2–2 Flanges, Gaskets and Bolting EP 5–2–4 Supplemental Requirements for Pipe and Piping Components EP 15–1–4 Positive Materials Identification (PMI) EP 15–1–5 Color Coding For Material Identification EP 15–5–1 QA/QC Procedures for Commodity Purchases |
| APl Recommended Practices |
RP574 Inspection of Piping, Tubing, Valves, and Fittings 601 Metallic Gaskets for Piping |
DEFINITIONS
- Certified Material Test Report (CMTR) – A document, or documents, on which are recorded the results of tests, examinations, repairs, or treatments required by the Material Specification. Supplementary or special requirements, in addition to the requirements of the Material Specification, as required by the Purchase Order shall also be included on the CMTR. The specification of the material being represented including the year of issue, and the material heat number shall also be included on the CMTR. All such documents shall identify the applicable Material Specification and shall be identified to the material represented.
- Commodity – Any item of standard design and/or mass manufacture which is purchased in quantity and maintained in stock for routine or specialized Plant use.
- Inspection Lot – Unless otherwise specified by the Owner’s Engineer, the inspection lot shall be as follows:
| Lot Size |
Inspection Lot |
| 5 or less |
2 |
| 6–20 |
3 |
| 21–40 |
4 |
| 41 and over |
10% rounded to the next highest whole number |
- Manufacturer – The recipient of a direct or indirect purchase order for materials and/or equipment. In this context, a direct order is one issued to a Manufacturer by a Contractor or the Owner. An indirect order is one issued to a Manufacturer by a vendor (recipient of a direct order) for materials, fabricated components, or subassemblies.
- Lot – A group of items with the same heat number.
- Owner – Inflection Point Engineering, LLC.
- Positive Materials Identification (PMI) – A procedure used to insure that alloy materials purchased by or for the Owner are properly identified, and meet the chemical composition of alloy materials as specified in Section II of the ASME Code or an applicable ASTM Specification, and the CMTR.
- Receiving Inspection – A receiving inspection shall be that inspection necessary to ensure that the dimensions, physical integrity, chemical composition, and mechanical properties of representative samples of commodity items are in conformance with those detailed by the applicable quality specifications. A receiving inspection shall require performance of specified examinations and tests of an inspection lot of the commodity, and review of documentation and reports that accompany the item(s).
- Receiving Q/A Authority – The person or department designated by the Owner responsible for assuring quality of incoming commodity material.
- Vendor – Recipient of a direct purchase order.
PROCEDURE
Inspection Lot of each received lot of gaskets shall be inspected as follows:
- Rings and gaskets shall be inspected for evidence of shipping damage.
- Rings and gaskets shall be examined to ensure proper identification marking.
- The alloy content of alloy ring gaskets shall be ascertained using the Texas Nuclear Alloy Analyzer or similar instrument.
- Gaskets shall be identified with the proper color coding per API 601.
DOCUMENTATION
- Inspection of each lot of gaskets shall be documented using Table 1 - Receiving Inspection Checklist Form or an equivalent method that includes all of the elements of the Inspection Checklist.
6.0 TABLES
TABLE 1
RECEIVING INSPECTION CHECKLIST FOR GASKETS AND RINGS
| DATE |
DATE |
INSPECTOR |
INSPECTOR |
INSPECTOR |
| MANUFACTURER |
MANUFACTURER |
PURCHASE ORDER NO. |
PURCHASE ORDER NO. |
PURCHASE ORDER NO. |
| NUMBER OF PIECES IN LOT |
NUMBER OF PIECES IN LOT |
|
|
|
| GASKET/RING: TYPE |
GASKET/RING: TYPE |
SIZE |
SIZE |
SIZE |
| MATERIAL SPECIFICATION |
MATERIAL SPECIFICATION |
MATERIAL SPECIFICATION |
MATERIAL SPECIFICATION |
MATERIAL SPECIFICATION |
| HEAT/LOT NUMBERS |
HEAT/LOT NUMBERS |
HEAT/LOT NUMBERS |
HEAT/LOT NUMBERS |
HEAT/LOT NUMBERS |
| INSPECTION CHECKLIST |
INSPECTION CHECKLIST |
INSPECTION CHECKLIST |
INSPECTION CHECKLIST |
INSPECTION CHECKLIST |
| 1) |
GASKET/RING FREE OF SHIPPING DAMAGE |
GASKET/RING FREE OF SHIPPING DAMAGE |
YES |
NO |
| 2) |
GASKET/RING IDENTIFICATION/MARKING ACCEPTABLE |
GASKET/RING IDENTIFICATION/MARKING ACCEPTABLE |
YES |
NO |
| 3) |
GASKET/RING ALLOY CONTENT VERIFIED |
GASKET/RING ALLOY CONTENT VERIFIED |
YES |
NO |
| 4) |
GASKET COLOR CODING CORRECT |
GASKET COLOR CODING CORRECT |
YES |
NO |
| 5) |
GASKET HARDNESS ACCEPTABLE |
GASKET HARDNESS ACCEPTABLE |
YES |
NO |
| COMMENTS/DISCREPANCIES NOTED: |
COMMENTS/DISCREPANCIES NOTED: |
COMMENTS/DISCREPANCIES NOTED: |
COMMENTS/DISCREPANCIES NOTED: |
COMMENTS/DISCREPANCIES NOTED: |
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| SIGNED |
SIGNED |
DATE |
DATE |
DATE |
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