Meztikus It is th thee res espo pons nsib ibil ility ity of th thee us user er of th this is st stan anda darrd to establish establi sh appr appropria opriate te safety and health practices and deter deter-mine the applicability asfm regulatory limitations prior to use. All specimens are loaded to fracture, at a constant rate of cross-head displacement. Sco Scope pe 1. However, other gage lengths can be used as long as they are practical, and in either case, the value of the gage length must be reported. We are a non-profit group that run this website to share documents.
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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. Rocking the scraper forward or back will reveal poor contact due to wear or warpage.
Keeping the gage between the operator d 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. Reduction should be in approximately the same proportion as the intermediate will be reduced in practice. The arrow in each drawing represents the end point reading for that distribution. Do not consider any reading for the reported neness when the time lapse exceeds 10 s.
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.
The values given in parentheses are for information only. The two edges on the 3. It may also be used to assess the inclusion of particulates by a cleanliness or texture rating.
A number in parentheses indicates the year of last reapproval. NOTE 6—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 order to see the particles better. When using the double-path gage, place material in both paths. The path shall be tapered uniformly in 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.
Signicance and Use 4. Use a solvent and a soft cloth. This average is considered one reading. The two depths will be 3 mils, and 1 mil, or as agreed aatm between the buyer and the seller. 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 atsm immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
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. Three ratings d indicated: NOTE 5—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.
At some point in this path, particles or agglomerates, or both, will become visible. Care of Gage 6. D — 05 1-in. A count is made of the particles deposited in the two delimited areas, and cleanliness texture reading is determined. TOP Related Posts.
ASTM C1557 PDF
More C Very short fibers including whiskers call for specialized test techniques 1 3 and are not covered by this test method. This test method may also be useful in the initial screening of candidate fibers for applications in polymer, metal, or ceramic matrix composites, and for quality control purposes. Because of their nature, ceramic fibers do not have a unique tensile strength, but rather a distribution of tensile strengths. In most cases when the tensile strength of the fibers is controlled by one population of flaws, the distribution of fiber tensile strengths can be described using a two-parameter Weibull distribution, although other distributions have also been suggested 2, 3. This test method constitutes a methodology to obtain the tensile strength of a single fiber. For the purpose of determining the parameters of the distribution of fiber tensile strengths, it is recommended to follow this test method in conjunction with Practice C
If this test method is used for free-draining soils the maximum unit weight may not be well defined, and can be less than obtained using Test Methods D In addition, they are representative of the significant digits that generally should be retained. It is beyond the scope of these test methods to consider significant digits used in analytical methods for engineering design. The values stated in SI units are provided for information only, except for units of mass.
ASTM C1557 - 20
Ararr No further reproductions authorized. Very short fibers including whiskers call for specialized test techniques 1 3 and are not covered by this test method. Last previous edition approved in as C — 03 Precision and Bias Ideally, an analog chart recorder or plotter shall be used in conjunction with the digital axtm acquisition system to provide an immediate record of the test as a supplement to the digital record. We need your help! Handle the test specimen at its ends and avoid touching it in the test gage length. Center the test specimen over the tab using the printed pattern with one end taped to the tab. X appropriate solvent can be used afterwards to remove the vacuum grease.