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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Page 3
... average thickness for each enamel is presented in table 1 . 2.7 . Gloss and Color The 45 - degree specular gloss of the enamels was measured [ 5 ] at four orientations ... Color Retention 100 98 Los Angeles -Montreal New York Washington 3.
... average thickness for each enamel is presented in table 1 . 2.7 . Gloss and Color The 45 - degree specular gloss of the enamels was measured [ 5 ] at four orientations ... Color Retention 100 98 Los Angeles -Montreal New York Washington 3.
Page 4
... color retention of porcelain enamel on aluminum . FIGURE 2. The effect of exposure time at the five weathering sites ... average color retentions for the nine enamel colors are presented in table 4 and figure 3. It can be seen that large ...
... color retention of porcelain enamel on aluminum . FIGURE 2. The effect of exposure time at the five weathering sites ... average color retentions for the nine enamel colors are presented in table 4 and figure 3. It can be seen that large ...
Page 5
... Average percentage of initial gloss retained for enamels exposed at : 6 - Mo . 105.7 100.8 174.5 111.8 104.8 TABLE 3. Color - retention data for enamels exposed for. Enamel Kure Beach New York Washington Los Angeles Montreal 6 - Mo . 1 ...
... Average percentage of initial gloss retained for enamels exposed at : 6 - Mo . 105.7 100.8 174.5 111.8 104.8 TABLE 3. Color - retention data for enamels exposed for. Enamel Kure Beach New York Washington Los Angeles Montreal 6 - Mo . 1 ...
Page 6
Three Year Inspection Margaret A. Baker. TABLE 3. Color - retention data for enamels exposed for three years in the 1964 exposure test of porcelain enamels on aluminum ... RETENTION COLOR AVERAGE COLOR RETENTION FOR THE ENAMEL EXPOSED AT 6.
Three Year Inspection Margaret A. Baker. TABLE 3. Color - retention data for enamels exposed for three years in the 1964 exposure test of porcelain enamels on aluminum ... RETENTION COLOR AVERAGE COLOR RETENTION FOR THE ENAMEL EXPOSED AT 6.
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Three Year Inspection Margaret A. Baker. RETENTION COLOR AVERAGE COLOR RETENTION FOR THE ENAMEL EXPOSED AT THE ... COLOR BLUE Dk . GREEN BLACK RED FIGURE 3. Comparison of the color retention of the nine different colors included in this ...
Three Year Inspection Margaret A. Baker. RETENTION COLOR AVERAGE COLOR RETENTION FOR THE ENAMEL EXPOSED AT THE ... COLOR BLUE Dk . GREEN BLACK RED FIGURE 3. Comparison of the color retention of the nine different colors included in this ...
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