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. The following observations were made through this analysis: Practice D is the preferred method for organic coatings. The values given in parentheses are for information only. Mark a by mm 6- by 1-in.
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The primer was separately applied to multiple test panels at two different dry? If you feel that your comments have not received a fair hearing you should make your views known to the Wstm Committee on Standards, at the address shown below. Rate the results in accordance with Table 1. 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.
Norma ASTM D()
A certain minimum degree of cure is necessary prior to topcoating. The d47752 given in parentheses are for information only. Originally approved in A superscript epsilon e indicates an editorial change since the last revision or reapproval. Current edition approved Jan.
Historical Version s - view previous versions of standard. It is the responsibility of the user of this standard to establish appropriate d475 and health practices and determine the applicability of regulatory limitations prior to use.
Solvent Resistance Rub Test – ASTM D4752
As relative humidity and temperature vary during the day, so does the rate of cure. 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 reflectance infrared spectroscopy. The values given in parentheses are for information only. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Practice D is the preferred method for organic coatings.
Practice D is the preferred method for organic coatings. 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.
Do xstm allow more than 10 s to elapse before proceeding to the next steps. If the former, record the number of rubs when the substrate is exposed. As relative humidity and temperature vary during the day, so does the rate of cure. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
ASTM_D(MEK Resistance)_百度文库
Link to Active This link will always route to the current Active version of the standard. A number in parentheses indicates the year of last reapproval. Specific hazard statements are given aetm Section 6. TABLE 1 Scale for Resistance Rating Resistance Rating Description 5 No effect on surface; no zinc on cloth after 50 double rubs 4 Burnished appearance in rubbed area; slight amount of zinc on cloth after 50 double rubs 3 Some marring and apparent xstm of the?
The MEK resistance of some two-component ethyl silicate zinc-rich primers ashm been shown to correlate well with the cure of the primer as determined by diffuse reflectance infrared spectroscopy.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
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 aztm committee, which you may attend. 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. Last previous edition approved in as D — Mark a by mm 6- by 1-in.
Performance ratings and general statistical information have been in Table X1. Reagents and Materials 5. Precision and Bias 8. 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?
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