ASME B18.18 pdf free download

ASME B18.18-2011 pdf free download.Quality Assurance for Fasteners.
This quality focused Standard establishes in-process and final inspection requirements for fastener products as well as a receiving inspection plan for fastener purchasers. This Standard identifies four categories, recognizing that fastener users have widely varying requirements. The four categories covered are as follows:
(a) Category 1 — A receiving inspection plan for purchasers
(h) Categories 2 and 3 — Utilizes documented and verifiable in-process controls structured at the producer’s discretion
(c) Category 4 — Includes all of the requirements of Category 2 plus 100% inspection for a specific feature or features
In the preparation of this Standard, it was recognized that its function must enable it to be a part of the various regimens in use today that attain certain quality levels of products. This Standard was written to encompass frameworks that enable the users of this Standard to pinpoint which category they wish to use in meeting their own obfrctives.
1.2 References
The following is a list of publications referenced in this Standard. Unless otherwise specified, the latest edition shall apply.
ASMF. B1.3M, Screw Thread Gaging Systems for Dimensional Acceptability — Inch Metric Screw Threads (UN, UNR, UNJ, M, and MJ)
ASME B18.6.3, Machine Screws, Tapping Screws, and Metallic Drive Screws (Inch Series)
ASME B18.12, Glossary of Terms for Mechanical Fasteners
Publisher: The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 10016-5990; Order Department: 22 Law Drive, P.O. Box 2900, Fairfield, NJ 07007-2900 (www.asme.org)
ASTM F 1470, Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
ASTM F 1941, Standard Specification for Electrodeposited Coatings on Threaded Fasteners lUnified Inch Screw Threads (UN/UNR)I
Publisher: American Society for Testing and Materials (ASTM International), 100 Barr Harbor Drive, West Conshohocken, I’A 19428-2959 (www.astm.org)
ISO 9001, Quality management systems — Requirenwnts
ISO/IEC 17011, Conformity assessment — General requirements for accreditation bodies accrediting conformity assessment bodies
ISO/IEC 17025. General requirements for the competence of testing and calibration laboratories
ISO/TS 16949, Quality management systems — Particular requirements for the application of ISO 90012000 for automotive production and relevant ser‘ice part organizations
Publisher: International Organization for
Standardization (ISO) Central Secretariat, I ch. de Ia
Voje-Creuse, Case postale 56, CH-1211 Geneva 20,
Switzerland (wwisr.iso.org)
1.3 Measuring and Testing Equipment
All inspection and testing equipment that is used for the acceptance of Category 2, 3, and 4 fasteners shall be calibrated by a laboratory that has been accredited to ISO/IEC 17025 by an accreditation body that operates in accordance with ISO/IEC 17011. Calibration shall be traceable to the National Institute of Standards and Technology (NIST) Standard or an equivalent national or international standard.
1.4 Terminology
For definitions of terminology not specifically defined in this Standard, refer to ASME B18.1l
1.4.1 Lot. A lot is a quantity of product of one part number made 1mm a single heat of raw material by the same production process and subsequently submitted for final inspection at one time. In the case of fastener assemblies, such as screw and washer assemblies, the manufacturer shall maintain lot traceability for all components.
1.5 Designation of Final Inspection Category
Procurement documents should indicate which category (2.3, or 4) of final inspection is required. Examples of designation are provided under the appropriate inspection category sections of this document.ASME B18.18 pdf download.