ASTM B244 PDF

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This standard is issued under the fixed designation B; the 1 This test method is under the jurisdiction of ASTM Committee B08 on Metallic. ASTM B Standard Test Method for Measurement of Thickness of Anodic Coatings on Aluminum and of Other Nonconductive Coatings on Nonmagnetic. Find the most up-to-date version of ASTM B at Engineering

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Material Safety Data Sheets. They may be coated aluminum plates, or may be foils or shims of? This eddy-current method is nondestructive and is suitable for measuring the thickness of anodic coatings on aluminum, as well as the thickness of most nonconductive coatings on nonmagnetic basis metals.

Resilient foils should be avoided if possible. Last previous edition approved in as B — 97 Precision and Bias Digital Rectifiers Kocour rectifiers are built to last.

A number in parentheses indicates the year of last reapproval. NF6M Stand Versatile and simple with connecting cable and air agitation system. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Made of 16 and 18 gauge CRS and powdercoated, our rectifiers are the “tanks” of the industry. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Electroplating Includes agitators, hull cells, timers, anodes and cathodes, rectifiers, plater’s tape, and other plating accessories View All. There is no standard time interval for re-calibration, nor is one absolutely required, but a calibration interval can be established based on experience and the work environment.

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The effects of properties of the substrate composition, shape, roughness, edge effects, electrical properties and coating composition, mass, surface roughnessas well as ambient and surface temperatures, may require adjustments to be made to the instrument. Analytical Testing Includes analytical test papers, solutions, reagents, indicators, plating test sets, and specialized measurements View All.

A one-year calibration interval is a typical frequency suggested by many instrument manufacturers. The eddy currents in turn create a secondary magnetic?

A probe is placed directly on the coated surface in a perpendicular position and electronic circuitry is used to convert a reference signal into a coating thickness measurement. Buffing and Polishing Includes abrasives, bar compound, buffing wheels, polishing lubricants, specialty compounds, buffing kits View All. Attention shall be given to the factors listed in Section 8 and to the procedures described in Section 9.

For a given basis metal, the higher the measuring frequency, the smaller the critical thickness of the basis metal. Chicago, IL Phone: Foils are subject to indentation and should, therefore, be replaced frequently.

Thickness Testing Includes coulometric modules and testers, calibration standards, repair services, and replacement parts. Calibration and Standardization 7. Kocour Company is ranked first in the metal finishing industry, Kocour enjoys a worldwide reputation for high quality products and services for the Plating Industry.

If there is no difference between the readings, the critical thickness is exceeded. An adjustment will affect the outcome of subsequent readings.

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Both the test surface and instrument probe should be kept free of foreign material. This standard is subject to revision at any time by the responsible asttm committee and must be reviewed every? If the basis metal is rough it may also be necessary to check, and adjust if necessary, the zero of the instrument at several positions on a sample of the uncoated rough substrate.

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Allow weeks delivery. Therefore, measurements made too near an edge or inside corner will not be valid unless the instrument is speci?

Summary of Test Method 4. Its aetm should be determined experimentally, if not supplied by the manufacturer of the measuring instrument, since it depends on both the measuring frequency of the probe system and the electrical conductivity of the basis metal. Originally approved in Kocour Company appreciates the opportunity to introduce you to our company. Analytical Testing Includes analytical test papers, solutions, reagents, indicators, plating test sets, and specialized measurements.

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Hull Cells The Kocour Hull Cell is unmatched for its sturdy construction, durability and ease of use. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Electroplating Includes agitators, hull cells, timers, anodes and cathodes, rectifiers, plater’s tape, b44 other plating accessories. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Current edition approved April 15, Buffing and Polishing Includes abrasives, bar compound, buffing wheels, polishing lubricants, specialty awtm, buffing kits. Pioneers in the Plating Industry Since Standards suitable for many applications of the test method are commercially available and may be used provided the certi?

The values given in parentheses are for information only. Nonmagnetic Coatings on Magnetic Basis Metals 3.