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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We need your help to maintenance this website. Significance and Use 3. Size px x x x x Originally approved in asgm This standard has been approved for use by agencies of the Department of Defense. Its application to other materials has not been tested.

A number in parentheses indicates the year of last reapproval. Precision and Bias 7. No other units of measurement are included in this standard.

Please copy and paste this embed script to where you want to embed Embed Script. 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. NOTE 2—The precision data were obtained using an instrument in which d15544 standards are viewed simultaneously.

ASTM D – 04 Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)

Alternatively equip the spectrophotometer with a condensing lens to accomplish this purpose. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.


We need your help! This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. The calibration of glass standards should be verified prior to use; a suitable procedure for their calibration is contained in Appendix X1.

The color shall be produced by the glass components only. In any one astn, no two standards shall be closer together than two thirds of the difference in x d544 y between corresponding reference standards. The specifications and approximate composition of these solutions are given in Test Method D — 58 T.

ASTM D – 98 Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)

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. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of aatm of atm rights, are entirely their own responsibility. Last previous edition approved in as D — 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.

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 d5144 of Subcommittee D ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.


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Viscosity tubes, as described in Test Method D, are satisfactory. No further reproductions authorized. If more precise measurements are needed, report as either matching a standard or lighter or darker.

ASTM D1544-04 (2010)

Thank you for interesting in our services. 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 dual beam spectrophotometer during calibration of each standard. The apparatus may be of any design, but should have the following characteristics: We are a non-profit group that run this website to share documents.

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.

If the material is perceptibly cloudy, first filter it. Please fill this form, we will try to respond as soon as possible. Your comments will receive careful consideration at a astk of the responsible technical committee, which you may attend.

Permission rights to photocopy the standard may also be secured from the ASTM website www. NOTE 1—If desired, liquid standards matching the colors given in Table 1, in glass tubes similar to the sample tubes may be used. Current edition approved June 1,

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