From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Table detailing the results of radiator corrosion experiments.
| Identifier | ExFiles\Box 27a\3\ Scan054 | |
| Date | 16th August 1929 | |
| (cont.) 16.8.29. RESULTS OF RADIATOR CORROSION EXPERIMENTS. Test No. Depth of Sediment on vessel bottom. Condition of Materials. Cast Iron. Aluminium. Radiator Tubes. 29 1/16" -------- -------- Bright at bottom worse at juncture. 30 Bright red. Largely suspended. 1/16" -------- -------- Slight matting undervscum. 31 3 times as much as 21. -------- Slightly O.K. Irregular coherent light scum. corroded. 32 3 times as much as 31. -------- Slightly As 31. corroded. 33 Less than 32. Greater than 31. Otherwise similar to 31. 34 Heavy sediment. 1/16" -------- Decidedly Tubes slightly roughened. corroded. 35 1/16" -------- O.K. Irregular light scum. 36 1/16". Paler. -------- O.K. Roughened. 37 Pale deposit 10% Iron. -------- Corroded Smooth irregular thin scum. Apparently not corroded 38 about 1/32" Pale (white) Chiefly Aluminium and Iron attacked aluminium. by the phosphoric acid. | ||