Gardner Colour. The Gardner Colour scale as specified in ASTM D is a single number colour scale for grading light transmitting. Scale samples with colour. Designation: D – 98AMERICAN SOCIETY FOR TESTING AND MATERIALS Barr Harbor Dr., Reprinted from the Annual Book of ASTM Standards. Standard Test Method for Color of Transparent Liquids (Gardner Color Scale).
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Precision and Bias 7. The specifications and approximate composition of these solutions are given in Test Method D — 58 T. If the material is perceptibly cloudy, first filter it. Alternatively equip the spectrophotometer with a condensing lens to accomplish this purpose.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. If the comparator is provided with a separate green filter in front of the light source, place this filter in the reference beam of the atsm beam spectrophotometer during calibration of each standard. In any one set, no two standards shall be closer together than two thirds of the difference in xstm or y between corresponding reference standards.
Some glass standards 1 This test method is under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of Subcommittee D C1544 previous edition approved in as D — NOTE 2—The precision data were obtained using an instrument in which two standards are viewed simultaneously.
ASTM D – 04() Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)
These may be filled with potassium chloroplatinate for the light colors and solutions of ferric chloride and cobalt chloride in hydrochloric acid for the darker colors. Significance and Use 3. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
If more precise measurements are needed, report as either matching a standard or lighter or darker.
ASTM D1544-04 (2010)
A number in parentheses indicates the year of last reapproval. Viscosity tubes, as described in Test Method D, are satisfactory. Current edition approved June 1, Size px x x x x 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. 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.
Originally approved in Please fill this form, we will try to respond as aztm as possible. This standard is subject to revision at any time by the responsible ast committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Thank you for interesting in our services. Permission rights to photocopy the standard may also be secured from the ASTM website www.
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NOTE 1—If desired, liquid standards matching the colors given in Asm 1, in glass tubes similar to the sample tubes may be used. The calibration of glass standards should be verified prior to use; a suitable procedure for zstm calibration is contained in Appendix X1. No other units of measurement are included in aetm standard. We are a non-profit group that run this website to share documents.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
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ASTM D () – Free Download PDF
This standard has been approved for use by agencies of the Department of Defense. There are other instruments available for color matching which would be expected to give similar results, but the statement above applies only to the instrument checked.
Please help us to share our service with your friends. We need your help! The color shall be produced by the glass components only. No further reproductions authorized.