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 5
Page
... Comparison of Exposure Sites 3.4 . Effect of Different Colors 3.5 . Effect of Initial Gloss 3 4 3.6 . Effect of Coating Thickness 3.7 . Correlation with Accelerated Tests 3.8 . Correlation with Enamels in a Previous Exposure Test 3.9 ...
... Comparison of Exposure Sites 3.4 . Effect of Different Colors 3.5 . Effect of Initial Gloss 3 4 3.6 . Effect of Coating Thickness 3.7 . Correlation with Accelerated Tests 3.8 . Correlation with Enamels in a Previous Exposure Test 3.9 ...
Page 4
... Comparison of Exposure Sites The color - retention data were subjected to a two- sided sign test [ 9 ] to determine if the exposure con- ditions at the various sites caused significant differ- ences in the color retention of the enamels ...
... Comparison of Exposure Sites The color - retention data were subjected to a two- sided sign test [ 9 ] to determine if the exposure con- ditions at the various sites caused significant differ- ences in the color retention of the enamels ...
Page 5
... comparison is between white enamels , the only color produced in both one- and two - coat forms . This comparison is given in the lower part of table 6. Although the differences in color retention of the one- and two - 5 Effect of ...
... comparison is between white enamels , the only color produced in both one- and two - coat forms . This comparison is given in the lower part of table 6. Although the differences in color retention of the one- and two - 5 Effect of ...
Page 7
... 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 retention for the enamels exposed at ...
... 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 retention for the enamels exposed at ...
Page 10
... comparison . TABLE 8. Comparison of the color retention of the enamels in this test with those in an earlier test Exposure test Type of enamel 1956 b 1956 b 1964 Average color retention • for enamels exposed at : Kure Beach Washington ...
... comparison . TABLE 8. Comparison of the color retention of the enamels in this test with those in an earlier test Exposure test Type of enamel 1956 b 1956 b 1964 Average color retention • for enamels exposed at : Kure Beach Washington ...
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