Qualification of Suppliers of Machining Services for Use in the Petroleum and Natural Gas Industries

API STANDARD 20M

FIRST EDITION, OCTOBER 2017

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Contents

Page

1. Scope 1

2. Normative References 1

3. Terms, Definitions, and Abbreviations 2

   1. Terms and Definitions 2

   2. Abbreviations 3

4. Machining Services Supplier Qualification. 4

   1. Minimum Requirements 4

   2. Machining Quality Levels (MQL) 4

5. QMS Requirements 6

   1. General 6

   2. Personnel Competency Requirements 6

   3. Equipment Maintenance 7

   4. Testing, Measuring, and Monitoring Equipment 7

   5. Document Control 9

   6. Customer Property 9

   7. Order Review 9

   8. Identification and Traceability 10

   9. Inspection Requirements 10

   10. Preservation of Product 11

   11. QMS Records 11

   12. Continued Conformity of the QMS 12

6. Control of Suppliers 12

   1. Control of MQL 1 Suppliers 12

   2. Control of MQL 2 Suppliers 12

   3. Control of MQL 3 Suppliers 12

7. Documentation 14

   1. MQL 1 Documentation 14

   2. MQL 2 Documentation 15

   3. MQL 3 Documentation 16

Bibliography 18

Tables

1. Quality Management System Requirements 6

2. Service Supplier Qualification Requirements 12

Introduction

API Standard 20M has been developed based on input from technical experts on machining services. The technical content has been established to accommodate the needs of the petroleum and natural gas industry.

This standard is not intended to inhibit a machining services supplier from offering, or the purchaser from accepting, alternative process or system solutions for the individual application.

Qualification of Suppliers of Machining Services for Use in the Petroleum and Natural Gas Industries

1. Scope

   
   

   This API standard specifies requirements for the qualification of suppliers of machining services where API product standards require such services or are otherwise specified as a requirement for compliance. Compliance with this standard is not required to demonstrate compliance with any other API standard or specification.

   
   

   This API standard establishes the requirements for three machining qualification levels (MQL 1, MQL 2, and MQL 3). These three MQL designations define different levels of quality and qualification requirements. These MQLs are numbered in increasing levels of requirements in order to reflect increasing quality and qualification criteria.

   
   

   Final assembly, component testing (e.g. nondestructive examination, pressure testing) or a broker of machining services are outside the scope of this standard.

   
   

   This standard applies when specified by the customer or voluntarily followed by the machining services supplier.

   
   

   NOTE This standard does not limit the responsibility of any manufacturer of commercial products utilizing machined parts and manufactured to an API standard from its responsibility for compliance with all applicable requirements of that API standard.

   
   

2. Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

API Specification Q1, 9th Edition, Specification for Quality Management System Requirements for Manufacturing Organizations for the Petroleum and Natural Gas Industry

API Standard 20D, Nondestructive Examination Services for Equipment Used in the Petroleum and Natural Gas Industry

API Standard 20H, Heat Treatment Services—Batch Type for Equipment used in the Petroleum and Natural Gas Industry

ANSI1/NCSL Z540.3, Requirements for the Calibration of Measuring and Test Equipment

ISO 9001:20152, Quality Management Systems, Requirements

ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories

1. American National Standards Institute, 25 West 43rd Street, 4th Floor, New York, New York 10036, www.ansi.org.

   
   

2. International Organization for Standardization, 1, ch. de la Voie-Creuse, Case postale 56, CH-1211 Geneva 20, Switzerland, www.iso.org.

2 API STANDARD 20M

ISO 17050-1, Conformity assessment – Supplier's declaration of conformity – Part 1: General requirements

3 Terms, Definitions, and Abbreviations

For purposes of this standard, the terms and definitions given in API Spec. Q1 and the following shall apply.

3.1 Terms and Definitions

3.1.1

acceptance criteria

Specified limits of acceptability applied to process or product characteristics.

3.1.2

broker

An organization that acts as an intermediary between two or more parties for machining services.

3.1.3

calibration status

A physical status indicator attached to or identified with the measurement or monitoring device indicating its current status of calibration.

3.1.4

coating

Application of a material to surfaces of a component where resulting conformance determination requires more than visual inspection.

NOTE Coating does not include painting for cosmetic purposes.

3.1.5

competence

The ability to apply knowledge and skills to achieve intended results.

3.1.6

conformity

Fulfillment of a requirement.

3.1.7

heat treatment

Specified, timed sequence of controlled heating and cooling of materials for the purpose of changing physical or mechanical properties.

3.1.8

machining services

A controlled material-removal process, such as cutting, electric discharge machining, electrochemical machining, grinding, honing, milling, turning, threading, and drilling.

3.1.9

on-site

The machining services supplier’s facility.