ASTM D1210 PDF

Nikole It may also be used to assess the inclusion of particulates by a cleanliness or texture rating. Keeping the gage between the operator and the light source, make the angle between the face of the gage and the line of vision so that the image of the uorescent tube appears in the material on the gage. There are 2 delimited sections on this gage, each of 6. C Federation of Societies for Paint Technology scale. NOTE 7—It is suggested that each side be counted only to f maximum of A 1d is made of the particles deposited in the two delimited areas, and cleanliness texture reading is determined. Report micrometer readings to the nearest multiple of 5 m and Hegman readings to the nearest 14 unit, Originally approved in Reduction should s in approximately the same proportion as the intermediate will be reduced in practice.

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Maukree Preferred calibrations are Hegman units and micrometers Note 1. C Federation of Societies for Paint Technology scale. Permission rights to photocopy the zstm may also be secured from the ASTM website www.

Summary of Test Method 3. Any light coming through between scraper and gage face shows that the scraper has been damaged and is not satisfactory for use. Do not consider any reading for the reported neness when the time lapse exceeds 10 s. The two protocols for reading the neness are: D — 05 Reapproved Standard Test Method for Fineness of Dispersion of Pigment-Vehicle Systems by Hegman-Type Gage1 This standard is issued under the xed designation D; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

Protect gages d lie idle for extended periods of time from rust with an oil coating or oil soaked wrap. Rocking the scraper forward or back will reveal poor contact due to wear or warpage. Be sure the gage surface is free of lint. NOTE 5—For this test method to function properly, the qstm particles in the specimens to be tested should be free to settle to the bottom of the gage channel after the drawdown.

NOTE 4—Clear nishes may have to be viewed at a lower e or they may have to be opacied with a nely ground colorant or dye in order to see the particles better. The arrow in each drawing represents the end point reading for that distribution. 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.

The two edges on the 3. When using the double-path gage, place material in both paths. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

These patterns are to be used for notation of frequency of particles and should not be interpreted according to the size of the dots. Rounded to nearest 5 m or 0. This standard has been approved for use by agencies of the Department of Defense. The path shall be tapered uniformly d depth lengthwise from 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.

Calculate the texture cleanliness of the material using the following formula that weights the coarse fraction 3-mil side of gage 4 times heavier than the ne fraction 1-mil side.

Use a solvent and a soft cloth. The values given in parentheses are for information only. At some point in this path, particles or agglomerates, or both, will become visible. This process allows the two test readings to be made with limited time lapses between completion of drawdown and reading. Precision and Bias This is the neness reading. 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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ASTM D1210

Tohn 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. A 0 to 8 specksB 9 to 15 specksand C 16 or asgm specks. A viewing box is not mandatory for illumination, but if one is desired, a proposed design for a viewing box is contained in Appendix X1. ASTM D Protect gages that lie idle for extended periods of time from rust with an oil coating or oil soaked wrap. Rounded to nearest 5 m or 0. Any light coming through between scraper and gage face shows that the scraper has been damaged and is not satisfactory for use. NOTE 1—Several arbitrary scales and modications of the gage are used by industry.

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Maukree Preferred calibrations are Hegman units and micrometers Note 1. C Federation of Societies for Paint Technology scale. Permission rights to photocopy the zstm may also be secured from the ASTM website www. Summary of Test Method 3. Any light coming through between scraper and gage face shows that the scraper has been damaged and is not satisfactory for use.

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