1964 Exposure Test of Porcelain Enamels on Aluminum: Three Year InspectionU.S. National Bureau of Standards, 1970 - 11 pages An exposure test of porcelain enamels on aluminum was initiated by the National Bureau of Standards and the Porcelain Enamel Institute in 1964.The enamels were returned from the exposure sites to the laboratory at NBS to be measured for changes in gloss and col * or after exposures of six months, one year, and three years.Changes were found to be greatest at Kure Beach and least at Montreal and Los Angeles, with moderate changes occurring at Washington and New York.Although the boiling citric acid test is used as an acceptance test for these enamels, the correlation with color change, particularly at Kure Beach, was not as good as expected.A cupric chloride test was developed which shows an improvement in this correlation.(Author). |
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Results 1-5 of 6
Page 2
... Blue Medium Two 32.9 4.4 6.2 A AT - B 54.8 3.6 7.0 A AT - C 62.4 2.9 6.1 AA AU - A Brown Medium Two 50.0 7.2 5.3 AU - B 35.4 6.4 7.5 AU - C 46.6 4.4 7.6 AW - A Yellow Medium Two 62.4 5.8 7.8 AW - B 63.1 4.1 8.7 AW - C 80.9 5.0 18.6 AAA ...
... Blue Medium Two 32.9 4.4 6.2 A AT - B 54.8 3.6 7.0 A AT - C 62.4 2.9 6.1 AA AU - A Brown Medium Two 50.0 7.2 5.3 AU - B 35.4 6.4 7.5 AU - C 46.6 4.4 7.6 AW - A Yellow Medium Two 62.4 5.8 7.8 AW - B 63.1 4.1 8.7 AW - C 80.9 5.0 18.6 AAA ...
Page 3
... blue enamel surfaces had the appearance of light particles surrounded by a darker colored matrix , while the black enamel surfaces appeared uniformly lightened . Many of the white enamels exposed at Kure Beach appeared to be yellowing ...
... blue enamel surfaces had the appearance of light particles surrounded by a darker colored matrix , while the black enamel surfaces appeared uniformly lightened . Many of the white enamels exposed at Kure Beach appeared to be yellowing ...
Page 4
... blue enamels exposed at Kure Beach . These changes were not predicted by any of the current tests for porcelain enamels on aluminum . 3.5 . Effect of Initial Gloss The enamels included in this test program were pro- duced in three gloss ...
... blue enamels exposed at Kure Beach . These changes were not predicted by any of the current tests for porcelain enamels on aluminum . 3.5 . Effect of Initial Gloss The enamels included in this test program were pro- duced in three gloss ...
Page 6
... Blue .. 88.2 98.2 98.3 98.9 98.4 Grey- 88.7 98.1 99.3 99.0 99.1 Yellow 93.9 98.0 98.8 98.7 98.8 White . 96.0 98.7 98.1 98.3 98.5 Light green . 94.8 98.4 98.9 99.1 99.2 Browu .. 97.8 99.2 98.9 99.4 99.6 Color retention is 100 minus the ...
... Blue .. 88.2 98.2 98.3 98.9 98.4 Grey- 88.7 98.1 99.3 99.0 99.1 Yellow 93.9 98.0 98.8 98.7 98.8 White . 96.0 98.7 98.1 98.3 98.5 Light green . 94.8 98.4 98.9 99.1 99.2 Browu .. 97.8 99.2 98.9 99.4 99.6 Color retention is 100 minus the ...
Page 7
... BLUE Dk . GREEN BLACK RED FIGURE 3. Comparison of the color retention of the nine different colors included in this test program . TABLE 5. Effect of initial gloss on the color retention of porcelain enamels on aluminum Average color ...
... BLUE Dk . GREEN BLACK RED FIGURE 3. Comparison of the color retention of the nine different colors included in this test program . TABLE 5. Effect of initial gloss on the color retention of porcelain enamels on aluminum Average color ...
Common terms and phrases
1964 Exposure Test 25 cents accordance with ASTM acid resistance acid solubility test acid spot test AG-C Angeles Montreal ASTM Book ASTM designation E-376 automatic data processing Average color retention boiling acid solubility boiling cupric chloride Book of Standards Building Science Series Bureau of Standards change in NBS citric acid spot color change color-retention data correlation between color cupric chloride test Eddy Current enamel colors Enamel Kure Beach enamel systems enamels exposed enamels included enamels on aluminum exposed at Kure gloss and color gloss range high gloss enamels initial gloss Interrelations Between Cement Kure Beach Washington low gloss enamels Medium minus the color Montreal Los Angeles National Bureau nature-tone enamels NBS units percentage gloss retained porcelain enamels Portland Cement Resistance of Porcelain RETENTION AFTER 3-YEARS retention is 100 retention of porcelain sign test Spalling specimens specular gloss spot test ratings Test of Porcelain Washington New York Weather Resistance York Montreal