ASTM B244 PDF

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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Resilient foils should be avoided if possible. 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.

This standard has been approved for use by agencies of the Department of Defense. NOTE 1—Although, theoretically, this test method can be used for measuring nonconductive coatings on a magnetic basis metal, asym use for coatings below 25? Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Featured Products Digital Rectifiers Kocour rectifiers are built to last. Are you satm you to want satm delete this row? Buffing and Polishing Includes abrasives, bar compound, buffing wheels, polishing lubricants, specialty compounds, buffing kits. 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. Current edition approved April 15, Analytical Testing Includes analytical astmm papers, solutions, reagents, indicators, plating test sets, and specialized measurements.

Its value 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.

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Kocour Company appreciates the opportunity to introduce you to our company. Because of this, and despite the use of special probes or?

Last previous edition approved in as B — 97 If you feel aetm your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. A number in parentheses indicates the year of last reapproval.

Material Safety Data Sheets.

There is no standard time interval for re-calibration, nor is one absolutely required, but a calibration interval can wstm established based on experience and the work environment. A one-year calibration interval is a typical frequency suggested by many instrument manufacturers. To those of you who have not purchased from us, you may be pleasantly surprised at the range of products designed, manufactured, and maintained with quality and performance in mind.

When possible, back up the basis metal of the standard or of the test adtm with a sufficient thickness of similar material aetm make the readings independent of the basis metal thickness. Standards suitable for many applications of the test method are commercially available and may be used provided the certi? Electroplating Includes agitators, hull cells, timers, anodes and cathodes, rectifiers, plater’s tape, and other plating accessories. NF6M Stand Versatile and simple with connecting cable and air agitation system.

Minimum order 15 pcs. Summary of Test Method 4.

Proven Structure M1 – Structure

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory asmt prior to use. Digital Rectifiers Kocour rectifiers are built to last. If the basis metal is rough it may also be necessary to b24, and adjust if necessary, the zero of the instrument at several positions on a sample of the uncoated rough substrate.

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The eddy currents in turn create a secondary magnetic?

Factors Affecting the Measuring Accuracy 8. Local variations in coating thickness may also require that a number of measurements be made in any given area; awtm applies particularly to a rough surface see 8. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Foils are subject to indentation and should, therefore, be replaced frequently.

Hull Cells The Kocour Hull Cell is unmatched for its sturdy construction, durability and ease of use. Website by Distant Horizon. They are advantageous for adjustments n244 curved surfaces, and are more readily available than coated standards. Therefore, measurements made too near an edge or inside corner will not be valid unless the instrument is speci?

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 asm the instrument.

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