ASTM D4752 PDF

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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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The values given in parentheses are for information only. 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.

astmm 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 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.

The Society for Protective Coatings, 40 24th St. Current edition approved Jan. 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. A asttm minimum degree of cure is necessary prior to topcoating. 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.

Solvent Resistance Rub Test – ASTM D4752

The primer was separately applied to multiple test panels at two different dry? Performance ratings and general statistical information have been in Table X1. It is the responsibility of the user of this standard to establish appropriate safety and health practices asgm determine the applicability of regulatory limitations prior to use. It d4572 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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Precision and Bias 8. A superscript epsilon e indicates an editorial change since the last revision or reapproval. A certain minimum degree of cure is necessary prior to topcoating.

Rate the results in accordance with Table 1. Specific hazard statements are given in Section 6. 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? The values given in parentheses are for information only.

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.

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. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. As relative humidity and temperature vary during the day, so does x4752 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

Separate test panels corresponding to each coating thickness category were scored after a 6-h cure period and a h cure period. As relative humidity and temperature vary during the day, so does the rate of cure. Reagents and Materials 5. If the former, record the number aatm rubs when the substrate is exposed. Historical Version s – view previous versions of standard. Practice D is the preferred method for organic coatings.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Last previous edition approved in as D — The following observations were made through this analysis: Link to Active This link will always route to the current Active version of the standard.

Use this area as the control to visually show the appearance of No Effect.

Practice D is the preferred method for organic coatings. Do not allow more than 10 s to elapse before proceeding to the next steps.

Mark a by mm 6- by 1-in. A number in parentheses indicates the year of last reapproval. TABLE 1 Scale for Resistance Rating Resistance Rating 5 4 3 2 1 0 Description No effect on surface; no aatm 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?

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. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?