ASTM D4752 PDF

Grozahn 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. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Solvent Resistance Rub Test — ASTM D Using the procedure outlines in this test method, eight different operators were asked to rate, in triplicate, the methyl ethyl ketone MEK rub resistance of a particular inorganic zinc-rich primer. Mark a by mm 6- by 1-in.

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A certain minimum degree of cure is necessary prior to topcoating. Performance ratings and general statistical information have been in Table X1. A certain minimum degree of cure is necessary prior d topcoating. The Society for Protective Coatings, 40 24th St. The primer was separately applied to multiple test panels at two different dry? Historical Version s — view previous versions of standard. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

Your comments will receive careful consideration at a meeting of the responsible technical committee, qstm you may attend. Specific hazard statements are given in Section 6. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of adtm limitations prior to use.

Precision and Bias 8. TABLE 1 Scale for Resistance Rating Resistance Rating 5 4 3 2 1 0 Description No effect on atm no zinc on cloth after 50 double rubs Burnished appearance in rubbed area; slight amount of zinc on cloth after 50 double rubs Some marring and apparent depression of the?

Originally approved in Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. The MEK astk of some two-component ethyl silicate zinc-rich primers has been shown to correlate well with the cure of the primer as determined by diffuse reflectance infrared spectroscopy. Complete each double rub one forward and back motion in about 1 s.

Practice D is the preferred method for organic coatings. Reagents and Materials 5. It has been shown that the degree of cure of ethyl silicate zinc-rich primers can asfm measured by the chemical changes occurring using diffuse reflectance infrared spectroscopy. Rate the results in accordance with Table 1.

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. If the former, record the number of rubs when the substrate is exposed. The values given in parentheses are for information only. Individual reprints single or multiple copies of this standard may be d by contacting ASTM at the above address or at phonefaxor service astm.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of aetm standard.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Separate test panels corresponding to each coating thickness category were scored after a 6-h cure period and a h cure period. A number in parentheses indicates the year of last reapproval.

Mark a by mm 6- by 1-in. The following observations were made through this analysis: Last previous edition approved in as Astn — 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.

Do not allow more than 10 s to elapse before proceeding to the next steps. As relative humidity and temperature vary during the day, so does the rate of cure. If you feel that 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.

The MEK resistance of some twocomponent ethyl silicate zinc-rich primers has been shown to correlate well with the cure of the primer as determined by diffuse re? It has been shown that the degree of cure of ethyl silicate zinc-rich primers can be measured by the chemical changes occurring using diffuse re?

Current edition approved Jan. Clean the surface with tap water or dry cloth to remove loose material. Related Articles.

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ASTM D4752-03 Measuring MEK Resistance of Ethyl Silicate (Inorganic)

If the former, record the number of rubs when the substrate is dd As relative humidity and temperature vary during the day, so does the rate of cure. Using the procedure outlines in this test method, eight different operators were asked to rate, in triplicate, the methyl ethyl ketone MEK rub resistance of a particular inorganic zinc-rich primer. Performance ratings and general statistical information have been in Table X1. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Practice D is the preferred method for organic d Link to Active This link will always route to the current Active version of the standard.

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