ScopeImportant notice: the ISO 9001 Standard requirements apply the final product supplied to the customer and not apply the internal processes and intermediate or middle products. Therefore the scope shall include the final product. Customer may be considered as internal customer as well as external customer. Now, after clearing this, let’s get down to business. Clause 1 of the ISO 9001 Standard is used to present the purposes and concepts of the standard and define the scope of application of the standard to your quality management system. The following aspects are covered in this clause:The goals and purposes of the standardThe approach and reference to customer requirementsThe approach and reference to regulatory or statutory requirementsApplicability of the standard requirementsThe Principles of the ISO 9001:2015 StandardClause 1—Scope presents us with the principles and concepts of the standard. The ISO 9001 Standard is aimed to satisfy customers by fulfilling its requirements along with applicable international and national regulations. This is expressed through four principles:1. The goal and objective of the standard is to initiate a QMS that acts to consistently meet customer requirements as well as applicable regulatory requirements.2. The requirements of this standard initiate harmonization between a QMS of an organization and applicable regulatory requirements.3. The requirements suggested in the ISO 9001 Standard facilitate an improvement of processes included in the QMS and assurance of conformity to customer or regulatory requirements.4. The requirements suggested in the ISO 9001 Standard are applicable to all sorts of organizations regardless of their size or type, the type of their customers, and the type of products or services that they are providing.The international ISO 9001 standard specifies requirements for a quality management system where an organization:Is required to demonstrate is ability to supply persistently and continually product that meets specific requirements (customer’s or regulatory). The standard requirements would ensure that the organization shall achieve requirements it is obliged to.Has defined objectives for achieving customer’s satisfaction. This objective shall be achieved by implementing effectively a quality management system. The quality management system shall include:Continual improvement activities.Assurance of conformity to customer’s requirementsAssurance of conformity to regulatory requirements

Scope 1. PURPOSE AND COVERAGEThe purpose of this specification is to provide standards for pipe suitable for use in conveying gas, water, and oil in both the oil and natural gas industries.This specification covers seamless and welded steel line pipe. It includes plain-end, threaded-end, and belled-end pipe, as well as through-the-ftowline (TFL) pipe and pipe with ends prepared for use with special couplings.Although the plain-end line pipe meeting this specification is primarily intended for field makeup by circumferential welding, the manufacturer will not assume responsibility for field welding.2. PRODUCT SPECIFICATION LEVEL (PSL)This specification establishes requirements for two product specification levels (PSL I and PSL 2). These two PSL designations define different levels of standard technical requirements. PSL 2 has mandatory requirements for carbon equivalent, notch toughness, maximum yield strength, and maximum tensile strength. These and other differences are summarized in Appendix 1.Requirements that apply to only PSL I or only PSL 2 are so designated. Requirements that are not designated to a specific PSL apply to both PSL I and PSL 2.The purchaser may add requirements to purchase orders for either PSL I or PSL 2, as provided by the supplementary requirements (Appendix F) and other options (4.2 and 4.3).3. GRADESThe grades (see the note) covered by this specification are the standard Grades A25, A, B, X42, X46, X52, X56, X60, X65, X70 and X80; and any intermediate grades (grades that are higher than X42, intermediate to two sequential standard grades, and agreed upon by the purchaser and manufacturer).PSL I pipe can be supplied in Grades A25 through X70.PSL 2 pipe can be supplied in Grades B through X80.Class II (CI II) steel is rephosphorized and probably has better threading properties than Class I (CI l). Because Class II (CI II) has higher phosphorus content than Class I (CI l), it may be somewhat more difficult to bend.Pipe manufactured as Grade X60 or higher shall not be substituted for pipe ordered as Grade X52 or lower without purchaser approval.Note: The grade designations are dimensionless. Grades A and B do not include reference to the specified minimum yield strength; however, other grade designations are composed of the letter A or X, followed by the first two digits of the specified minimum yield strength in U.S. Customary units.4. DIMENSIONSThe sizes used herein are dimensionless designations, which are derived from the specified outside diameter as measured in U.S. Customary units, and provide aconvenient method of referencing pipe size within the text and tables (butnot for order descriptions). Pipe sizes 23/8 and larger are expressed as integers and fractions; pipe sizes smaller than 23/8 are expressed to three decimal places. These sizes replace the "size designation" and the "nominal size designation" used in the previous edition of this specification. Users of this specification who are accustomed to specifying nominal sizes rather than 00 sizes are advised to familiarize themselves with these new size designations used in this specification, especially the usage in Tables 4, 5, and 6A.PSL I pipe can be supplied in sizes ranging from 0.405 through 80.PSL 2 pipe can be supplied in sizes ranging from 4'/2 through 80.Dimensional requirements on threads and thread gages, stipulations on gaging practice, gage specifications and certification, as well as instruments and methods for inspection of threads are given in API Standard 5B and are applicable to threaded products covered by this specification.