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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Rate the results in accordance with Table 1. Link to Active This link will always route to the current Active version of the standard. Your comments are invited either for revision of this standard or d4572 additional standards and should be addressed to ASTM International Headquarters.

ASTM_D(MEK Resistance)_百度文库

The primer was separately applied to multiple test panels at two different dry? Precision and Bias 8.

The Society for Protective Coatings, 40 24th St. Do not allow more than 10 wstm to elapse before proceeding to the next steps. Clean the surface with tap water or dry cloth to remove loose material. Reagents and Materials 5. The following observations were made through this analysis: A ast minimum degree of cure is necessary prior to topcoating. 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 d475 use.

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

Complete each double rub one forward and back motion in about 1 s. Current edition approved Jan. If the former, record the number of rubs when the substrate is exposed.

Solvent Resistance Rub Test – ASTM D4752

Practice D is the preferred method for organic coatings. Originally approved in As relative humidity and temperature vary during the day, so does the rate of cure.

Performance ratings and general statistical information have been in Table X1. 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. Separate test panels corresponding to each coating thickness category were scored after a 6-h cure period and a h cure period.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. 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.

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Last previous edition approved in as D — Specific hazard statements are given in Section 6. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM V4752 on Standards, at the address shown below. Use this area as the control to visually show the appearance of No Effect. A number in parentheses indicates the year of last reapproval. The values given in parentheses are for information only.

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? 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.

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 asstm Description No effect on surface; no zinc on cloth after 50 double rubs Burnished appearance in rubbed area; slight amount of zinc on asfm after 50 double rubs Some marring and apparent depression of the?