ASTM D4752 PDF

ASTM D4752 PDF

ASTM D MEK Test (Zinc Test) – Free download as PDF File .pdf), Text File . txt) or read online for free. Designation: D – Standard Test Method for. Measuring MEK Resistance of Ethyl Silicate (Inorganic) Zinc-Rich Primers by Solvent Rub1 This standard. Designation: D – 03 Standard Test Method for Measuring MEK Resistance of Ethyl Silicate (Inorganic) Zinc-Rich Primers by Solvent Rub1.

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If the former, record the number of rubs when the substrate is exposed. Last previous edition approved in as D — Historical Version s – view previous versions of standard. If you feel that your comments have not received a fair hearing you should make your views known to d752 ASTM Committee on Standards, at the address shown below.

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 values given in parentheses are for information only.

Rate the results in accordance with Table 1. Use this area as the control to visually show the appearance of No Effect. Mark a by mm 6- by 1-in.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? The Society for Protective Coatings, 40 24th St. The following observations were made through d475 analysis: Separate test panels corresponding to each coating thickness category were scored after a 6-h cure period and a h cure period. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine d472 applicability of regulatory limitations prior to use.

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A certain minimum degree of wstm is necessary prior to topcoating. Performance ratings and general statistical information have been in D47752 X1. Originally approved in As relative humidity and temperature vary during the day, so does the rate of cure. A number in parentheses indicates the year of last reapproval. Users of this standard are expressly advised that determination of the validity of any such patent asmt, and the risk of infringement of such rights, are entirely their own responsibility.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. The MEK resistance 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.

Practice D is the preferred method for organic coatings. 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.

Specific hazard statements are given in Section 6. A certain minimum degree of cure is necessary prior to topcoating.

ASTM_D(MEK Resistance)_百度文库

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

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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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.

The values given in parentheses are for information only. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Current edition approved Jan.

Your comments will receive careful consideration at d472 meeting of the responsible technical committee, which you may attend. The primer was separately applied to multiple test panels at two different dry? Link to Active This link will always route to the current Active version of the standard. Do not allow more than 10 s to elapse before proceeding to the next steps.

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? Precision and Bias 8.

Solvent Resistance Rub Test – ASTM D4752

As relative humidity and temperature vary during the day, so does the rate of cure. TABLE 1 Scale for Resistance Rating Resistance Rating 5 4 3 2 1 0 Description No effect on surface; 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?

Clean the surface with tap water or dry cloth to remove loose material. Complete each double rub one forward and back motion in about 1 s.