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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This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? 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.
Digital Rectifiers Kocour b2444 are built to last. Therefore, measurements satm too near an edge or inside corner will not be valid unless the instrument is speci?
Material Safety Data Sheets. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Because of this, and despite the use of special probes or? Last previous edition approved in as B — 97 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 asttm a sample of the uncoated rough substrate.
With name recognition that is ranked first in the metal finishing industry, Kocour enjoys asrm worldwide reputation for high quality products and aztm. Resilient foils should be avoided if possible. Analytical Testing Includes analytical test papers, solutions, reagents, indicators, plating test sets, and specialized measurements. Minimum order 15 pcs. 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.
Summary of Test Method 4. Standards suitable for many applications of the test method are commercially available and may be used provided the certi? Attention shall be given to the factors listed in Section 8 and to the procedures described in Section 9. NF6M Stand Versatile and simple with connecting ast and air agitation system. Buffing and Polishing Includes abrasives, bar compound, buffing wheels, polishing lubricants, specialty compounds, buffing kits View All.
It is the responsibility of the user of this b24 to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The eddy currents in turn create a secondary magnetic? An adjustment will affect the outcome of subsequent readings. Made of 16 and 18 gauge CRS and powdercoated, our rectifiers are the “tanks” of the industry.
Analytical Testing Includes analytical test papers, solutions, reagents, indicators, plating test sets, and specialized measurements View All.
A probe is placed directly astn the coated surface in a perpendicular position and electronic circuitry is used to convert a reference signal into a coating thickness measurement. A one-year calibration interval is a typical frequency suggested by many instrument manufacturers.
Foils are subject to indentation and should, therefore, be replaced frequently. B2444 by Distant Horizon.
Give appropriate attention to the factors listed in Section 8. Are you sure you to want to delete this row? Precision and Bias Originally approved in Calibration and Standardization 7.
To those of you who are already Kocour customers, thank you. This standard has been approved for use by agencies of the Department of Defense.
ASTM B244 – 09(2014)
They may be coated aluminum plates, or may be foils or shims of? The values given in parentheses are for information only. If there is no difference between the readings, the critical thickness is exceeded. Pioneers in the Plating Industry Since Kocour Company appreciates the opportunity to asfm you to our company.
Proven Structure M1 – Structure
Current edition astk April 15, Electroplating Includes agitators, hull cells, timers, anodes and cathodes, rectifiers, plater’s tape, and other plating accessories View All. A way to determine if the basis metal thickness exceeds the critical thickness is to make measurements before and after backing up the basis metal with similar metal at least 3 mm mils thick.
If the roughness of the substrate surface is small, relative to the coating thickness, its effect will probably be negligible. Factors Affecting the Measuring Accuracy 8.
Its value should be determined experimentally, if not supplied by the manufacturer of the measuring instrument, b2444 it depends on both the measuring frequency of the probe system and the electrical conductivity of the basis metal. Nonmagnetic Coatings on Magnetic Basis Metals 3.
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Buffing and Polishing Includes abrasives, bar compound, buffing wheels, polishing lubricants, specialty compounds, buffing kits. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
When possible, back up zstm basis metal of the standard or of the test specimen with a sufficient thickness of similar material to make the readings independent of the basis metal thickness. There is no standard time interval for re-calibration, nor is one absolutely required, but a calibration n244 can be established based on experience and the work environment.
General Laboratory General Laboratory. They are advantageous for adjustments on curved surfaces, and are more readily available than coated standards. Hull Cells The Kocour Hull Cell is unmatched for its sturdy construction, durability and ease of use. A number in parentheses indicates the year of last reapproval.