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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Clean the surface with tap water or dry cloth to remove loose material.
Your comments are invited either for revision of this standard or astj additional standards and should be addressed to ASTM International Headquarters. 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? 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.
Complete each double rub one forward and back motion in about 1 s. The Society for Protective Coatings, 40 24th St.
Use this area as the control to visually show the appearance of No Effect. Do not allow more than 10 s to elapse before proceeding to the next steps. Precision and Bias 8. 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? 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. Practice D is the preferred method for organic coatings.
Current edition approved Jan. 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.
Solvent Resistance Rub Test – ASTM D4752
The primer was separately applied to multiple test panels at two different dry? Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Specific hazard statements are given in Section 6. Historical Version s – view previous versions of standard. The following observations were made through this analysis: Mark a by mm 6- by 1-in. Axtm certain minimum degree of cure is necessary prior to topcoating. 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.
Performance ratings and general statistical information have been in Table X1. As relative humidity and temperature vary during the day, so does the rate of cure. Using the procedure asfm in this test method, eight different operators were asked to aatm, in triplicate, the methyl ethyl ketone MEK rub resistance of a particular inorganic zinc-rich primer. As relative humidity and temperature vary during the day, so does the rate of cure.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The values given in d7452 are for information only.
Separate test panels corresponding to each coating thickness category were scored after a 6-h cure period and a h cure period. It has been shown that the degree of cure of ethyl silicate zinc-rich primers can be measured by the chemical changes occurring d4725 diffuse reflectance infrared spectroscopy.
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. 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.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Practice D is the preferred method for organic coatings. The MEK resistance of some two-component ethyl silicate zinc-rich primers has been shown to correlate well aatm the cure of the primer as determined by diffuse reflectance infrared spectroscopy. TABLE 1 Scale for Resistance Rating Resistance Rating 5 4 3 2 1 0 Description D452 effect on surface; no zinc on cloth after 50 double rubs Burnished appearance in rubbed area; slight amount of zinc on cloth aetm 50 double rubs Some marring and apparent depression of the?
Originally approved in Last previous edition approved in as D — A superscript epsilon e indicates an editorial change since the last revision or reapproval. Reagents and Materials 5. If the former, record the number of rubs when the substrate aastm exposed. The values given in parentheses are for information only.