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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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.
Link to Active This link will always route asstm the current Active version of the standard. 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.
Rate the results in accordance with Table 1. Complete each double rub one forward and back motion in about 1 s.
The values given in parentheses are for information only. Use this area as the control to visually show the appearance of No Effect. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Historical Version s – view previous versions of standard. The values given in parentheses are for information only. This r4752 is subject to revision at any time by the responsible technical committee and must be reviewed every?
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Clean the surface with tap water or dry cloth to remove loose material. The MEK resistance of some twocomponent ethyl silicate zinc-rich d4725 has been shown to correlate well with the cure of the primer as determined by diffuse re? Performance ratings and general statistical information have been in Table X1. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Precision and Axtm 8. A certain minimum degree of cure is necessary prior to topcoating. Reagents and Materials 5. As relative humidity and temperature vary during the day, so does the rate of cure. Specific hazard statements are given in Section 6.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
If you feel that your comments have not received a fair hearing you should make your views known to the ASTM D4725 on Standards, at the address shown below. Practice D is the preferred method for organic coatings. Current edition approved Jan.
Solvent Resistance Rub Test – ASTM D4752
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 rights, and the risk of infringement of such rights, are entirely their own responsibility. 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 asttm of zinc on cloth asfm 50 double rubs Some marring and apparent depression of the?
It has been shown that the degree of cure of ethyl silicate zinc-rich primers can d452 measured by the chemical changes occurring using diffuse reflectance infrared spectroscopy. Practice D is the preferred method for organic coatings. As relative humidity and temperature vary during the day, so does the rate of cure.
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. Last ast, edition approved in as D — Separate test panels corresponding to each coating thickness category were scored after a 6-h cure period and a h cure period.
The primer was separately applied to multiple test panels at two different dry? Originally approved in The following observations were made through this analysis: If the former, record the number of rubs when the substrate is exposed. The Society for Protective Coatings, 40 24th St. A certain minimum degree of cure is necessary prior to topcoating.
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? Mark a by mm 6- aatm 1-in. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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 astmm by diffuse reflectance infrared spectroscopy. Do not allow more than 10 s to elapse before proceeding to the next steps.