AWS C2.21M/C2.21 pdf free download
AWS C2.21M/C2.21 pdf free download.Thermal Spray Equipment Performance Verification.
2. Normative References
The following standards contain provisions which, through reference in this text, constitute mandatory provisions of this AWS standard. For undated references, the latest edition of the referenced standard shall apply. For dated references, subsequent amendments to, or revisions ot any of these publications do not apply.
American Welding Society (AWS) standards:’
AWS A3.O, Standard Welding Ternis and Definitions: Including Terms for Adhesive Bonding, Brazing, Soldering, Thermal Curling, and Thermal Spraying
3. Terms and Definitions
AWS A3.OMJA3.O, Standard Welding Terms and DefInitions. provides the basis for terminology used herein. However, the following tenns and definitions are included to accommodate usage specific to this document.
acceptance criteria. The standards a product or process must meet to successfully complete a test phase or to meet delivery requirements.
accuracy. The agreement between a measurement and the true or correct value.
adjustment. Setting or correcting the measured output of a device or system.
calibration. A documented process used to determine, under specified conditions, the performance parameters of a device or system by comparison to standards. Calibration may involve adjustment to assure results are produced, which meet or exceed some defined criteria with a specified degree of confidence.
calibration record. A calibration may be expressed by a calibration certificate, calibration curve, calibration diagram, calibration function, calibration table, deviation chart, or statement. In some cases, it may consist of an additive or niultiplicative correction of the indication with associated measurement uncertainty.
certification. A documented statement, by authorized and qualified individuals, that an equipment/system validation, revalidation, qualification, re-qualification, or calibration has been performed appropriately with acceptable results.
Inspector. The individual or company who executes some or all of the thermal spray equipment performance verification specified by the User in accordance with this standard.
performance test. See calibration.
performance ‘erihcation. Evaluation of an equipment, system, or process toensure it will produce reliable and reproducible results when operated within a specified. predetermined set of parameters under normal production conditions.
precision. The minimum discernible change in the parameter being measured.
process gas. A gas or combination of gases. used to create combustion or a plasma. convey feedstock into the thermal spray gun. or propel the thermal spray feedstock from the thermal spray gun towards the substrate.
qualification. The characteristics or abilities gained through education, training, and/or experience, as measured against established requirements, such as standards or tests that qualify a person to perform a required function.
standard temperature and pressure(STP).A specific value of temperature and pressure established to permit comparison of different sets of data. The STP values typically vary by standards organization and application.
uncertainty. An interval of confidence around a measured value expressing the certainty a measured value will flot lie outside the stated interval.
User. The individual or company who specifies the thermal spray equipment performance verification be conducted and who has the authority to order it performed.AWS C2.21M/C2.21 pdf download.
