ASTM D(). Standard Test Method for Fineness of Dispersion of Pigment-Vehicle Systems by Hegman-Type Gage. standard by. ASTM D(细度) – Designation: D – 05 (Reapproved ) Standard Test Method for Fin. ASTM D Fineness of Dispersion of Pigment-Vehicle. Systems. Test Specimen At least grams of uniformly mixed solder paste. Equipment/.
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The arrow in each drawing represents the end point reading for that distribution. The two depths will be 3 mils, and 1 mil, or as agreed upon between the buyer and the seller. Individual reprints single or multiple copies of this standard may astn obtained by contacting ASTM at the above address or at phonefax x1210, or service astm. No further reproductions authorized. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
NOTE 2—Wear or warpage of the scraper may be noted by facing the edge of the scraper down on the smooth level face of the gage, then inspecting the contact edge by means of a strong light, placed behind the gage. Last previous edition approved in as D — 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. Replace or recondition unsatisfactory blades.
Keep the gage covered or encased at 2 5. Permission rights to photocopy the standard may also be secured from the ASTM website www. This average is considered one reading. When using the two-path gage, average the values in the two paths to the nearest 14 Hegman unit.
Rocking the scraper forward or back will reveal poor contact due to wear or warpage. There are 2 delimited sections on this gage, each of 6. Care of Gage qstm. A number in parentheses indicates the year of last reapproval.
Within 10 s of placing the specimen on the gage, make a reading as follows: Keeping the gage between the operator and the light source, make the angle between the face of the gage Current edition approved Feb. Signicance and Use 4. D — 05 1-in. Summary of Test Method 3.
These patterns are to be used for notation of frequency of particles and should not be interpreted according to the size of the dots. NOTE 6—Clear nishes may have to be viewed at a lower angle or they may have to be opacied with a nely ground atsm or dye in order to see the particles better.
ASTM D – Zehntner GmbH
Three ratings are indicated: 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 path shall be tapered uniformly in depth lengthwise asttm about 4 mils m at 10 mm from one end to zero depth at the other with intermediate calibrations in accordance with the depth at those points.
Avoid tapping or scratching with other metal. It may also v1210 used to assess the inclusion of particulates by a cleanliness or texture rating.
Be sure the gage surface is free of lint. Protect gages that lie idle for extended periods of time from rust with an oil coating or oil soaked wrap. NOTE 4—Clear nishes may have to be viewed at a lower angle or they may have to be opacied with a nely ground colorant or dye in d121 to see the particles better. NOTE 3—For this test method to function properly, the pigment particles in the specimens to be tested should be free to settle to the bottom of the gage channel after the drawdown.
Standard ASTM D1210
Preferred calibrations are Hegman units and micrometers Note 1. Use a solvent and a soft cloth. In order that readings obtained with these arbitrary scales and modications can be reported in the preferred units, the approximate relationship of these scales to gage depth is shown in the following example: This test awtm describes a way of making this judgment.
The two edges on the 3. The top surface of asfm block shall be ground smooth and planar and shall contain one or two paths mm 5 in. Rounded to nearest 5 m or 0. 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.
Exert upon the scraper only sufficient pressure to clean excess material from the face of the gage.