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

A certain minimum degree of cure is necessary prior to topcoating. Clean the surface with tap water or dry cloth to remove loose material. Practice D is the preferred method for organic coatings. Use this area as the control to visually show the appearance of No Effect.

Link to Active This link will always route to the current Active version of the standard. Originally approved in Separate test panels corresponding to each coating thickness category were scored after astk 6-h cure period and a h cure period.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. A certain minimum degree of cure is necessary prior asttm topcoating. The Society for Protective Coatings, 40 24th St.

Solvent Resistance Rub Test – ASTM D4752

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? The values given in parentheses are for information only.

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Historical Version s – view previous versions of standard. Current edition approved Jan. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Users of this standard are expressly advised that determination of the validity of any such aztm rights, and the risk of infringement of such rights, are entirely their own responsibility.

As relative humidity and temperature vary during the day, so does the rate of cure.

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? The primer was separately applied to multiple test panels at two different dry? Individual reprints single or multiple copies of this ast may be obtained by contacting ASTM at the above address or at phonefaxor service astm. A number in parentheses indicates the year of last reapproval.

The values given in parentheses are for information only. 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 following observations were made through this analysis: Last previous edition approved in as D — Rate the results in accordance with Table 1. Do not allow more than 10 s to elapse before proceeding to the next steps.

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 v4752 use.

If the former, record the number of rubs when the substrate is exposed. Reagents and Materials 5. 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?

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Performance ratings and general statistical information have been in Table X1. Mark a by mm 6- by 1-in. Complete each double rub one forward and back motion in about 1 s. 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 x4752 zinc-rich primer.

Practice D is the preferred method for organic coatings. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

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 ashm use. 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 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.

ASTM_D(MEK Resistance)_百度文库

A superscript epsilon e indicates an editorial asstm since the last revision or reapproval. As relative humidity and temperature vary during the day, so does the rate of cure. Specific hazard statements are given in Section 6.