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Current document root: Journal of the Society of Motion Picture Engineers ( Volume: 42, Issue: 1, January 1944)

A Review of Hypo Testing Methods

SMPTE • Journal Article • [Active]

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  • 1. Crabtree J. I. Eaton G. T. Muehler L. E. : “The Elimination of Hypo from Photographic Images,” J. Phot. Soc. Amer. , VI ( 1940 ), p. 6; J. Soc. Mot. Pic. Eng. XXV (Nov., 1940), p. 484.EXTERNAL
  • 10. Sedlaczek A. : “Ueber den Nachweis von Natriumthiosulfat (On the Detection of Sodium Thiosulfate),” Das Atelier des Photographen , 10 , No. 2 ( 1903 ), p. 25 .EXTERNAL
  • 11. Von Siebert Otto : “Wann haben unsere Platten und Bilder genügend gewässert? (When Are Plates and Prints Sufficiently Washed?),” Das Atelier des Photographen , 4 ( 1903 ), p. 62 . (Refers to work of Gaedicke.) Cf. Photo Woch., Feb. 13, 1900.EXTERNAL
  • 12. Hackl O. : “Colorimetrische Bestimmung von Spuren Thiosulfat auch neben Sulfit (Colorimetric Estimation of Traces of Thiosulfate in the Presence of Sulfite),” Chem. Zeit. , 47 ( 1923 ), p. 266 .EXTERNAL
  • 13. Houck R. C. Sheppard S. E. : “The Influence of pH on Washing Films after Processing,” J. Soc. Mot. Pic. Eng. , XXXI (July, 1938 ), p. 67 .EXTERNAL
  • 14. Cary E. Wheeler A. H. : “Quantitative Tests for Residual Hypo,” Amer. Phot. , 36 (Jan., 1942 ), p. 16 .EXTERNAL
  • 16. Crabtree J. I. Ross J. F. : “A Method of Testing for the Presence of Sodium Thiosulfate in Motion Picture Films,” J. Soc. Mot. Pic. Eng. , XIV (Apr., 1930 ), p. 419 .EXTERNAL
  • 16. Allen E. T. Crenshaw J. L. : “Crystalline Forms and Genetic Conditions of the Sulfides of Zinc, Cadmium, and Mercury,” Amer. J. Sci. , 34 ( 1912 ), p. 341 .EXTERNAL
  • 17. “Evaluation of Motion Picture Film for Permanent Records,” U. S. Department of Commerce, National Bureau of Standards , Miscellaneous Publication No. N 158, 5, 1937 .EXTERNAL
  • 18. Gibson J. E. Weber C. G. : “The Evaluation of Motion Picture Films by Semi-micro Testing,” J. Soc. Mot. Pic. Eng. , XXXII (Jan., 1939 ), p. 105 .EXTERNAL
  • 19. Evans G. H. : “Testing Aerial Photographic Negatives for Residual Sodium Thiosulfate,” Photogrammetric Eng. , VIII ( 1942 ), p. 121 .EXTERNAL
  • 2. Crabtree J. I. Eaton G. T. Muehler L. E. : “The Removal of Hypo and Silver Salts from Photographic Materials as Affected by the Composition of the Processing Solutions,” J. Soc. Mot. Pic. Eng. , XLI (July, 1943 ), p. 9 .EXTERNAL
  • 20. Townsend L. G. : “Proposed Residual Hypo Determinations on Film and Paper,” J. Documentary Reproduction , I , No. 4 ( 1938 ), p. 366 .EXTERNAL
  • 21. Lumière A. Lumière L. Seyewetz A. : “Tests for Hypo in Prints after Washing,” Brit. J. Phot. , 55 ( 1908 ), p. 417; Ibid., 60 (1913), p. 873 .EXTERNAL
  • 22. Lüppo-Cramer : “Adsorptions verbindungen der Gelatine mit sauren Agenzien (Adsorption Compounds of Gelatin with Acid Agents),” Phot. Ind. , 10 ( 1912 ), p. 1006 .EXTERNAL
  • Lüppo-Cramer : “Zum auswaschen der Fixier-Lösungen (On the Washing Out of Fixing Solutions),” Phot. Ind. , 15 ( 1917 ), p. 686 .EXTERNAL
  • 23. Weyde E. : “On the Possibility of Increasing the Stability of Photographic Prints,” Brit. J. Phot. , 82 ( 1935 ), p. 376 .EXTERNAL
  • 24. Freytag H. : “Was für die Haltbarkeit unserer Bilder Wichtig ist? (What Is Important for the Permanence of Prints?),” Phot. Chronik , 44 ( 1937 ), p. 401 . (This appears to be a repetition of the work of Weyde.).EXTERNAL
  • 26. Crabtree J. T. Eaton G. T. Muehler L. E. : “The Quantitative Determination of Hypo in Photographic Prints with Silver Nitrate,” J. Frank. Inst. , 235 , No. 4 ( 1943 ), p. 351 .EXTERNAL
  • 26. Hickman K. C. D. : “The Washing of Photographic Products—Part II, An Electrical Device for Measuring Minute Amounts of Hypo,” Phot. J. , 63 , NS 47 ( 1923 ), p. 208 .EXTERNAL
  • 27. Hickman K. C. D. Spencer D. A. : “The Washing of Photographic Products,” Phot. J. , 64 , NS 48 ( 1924 ), p. 539 ; Ibid., 65 NS 49 (1925), p. 443.EXTERNAL
  • 28. Bender L. L. : “Electrical Testing for Hypo Elimination,” The Camera , 55 ( 1937 ), p. 364 .EXTERNAL
  • 3. Crabtree J. I. Eaton G. T. : “Washing Photographic Films and Prints in Sea Water,” J. Soc. Mot. Pic. Eng. , XL (June, 1943 ), p. 380 .EXTERNAL
  • 4. “Elementary Photographic Chemistry,” Eastman Kodak Company , Rochester, N. Y. ( 1941 ), p. 120 .EXTERNAL
  • 5. Jelley E. E. Clark W. : “A Test for Thiosulfates,” Brit. J. Phot. , 89 ( 1929 ), p. 714 .EXTERNAL
  • 6. Feigl F. : “Über einen neuen empfindlichen Nachweis von Sulfiden und Thiosulfaten (Concerning a New Senstive Test for Sulfides and Thiosulfates).” Z. Anal. Chem. 74 , p. 369 ( 1928 ); for earlier observations see Raschig, F.: Schwefel und Stickstoffstudien (Sulfur and Nitrogen Studies) 201 1924, also Ber. deutsch. chem. Get., 48: (1915), p. 2088.EXTERNAL
  • 7. Herschel J. F. W. : Edinburgh Phil. J. 1 ( 1819 ), p. 26 .EXTERNAL
  • 8. Reynolds E. J. : “On the Detection of Hyposulfite of Soda,” Brit. J. Phot. , 10 ( 1863 ), p. 360 .EXTERNAL
  • 9. Lumière A. Lumière L. Seyewetz A. : Bul. Soc. Franc. Phot. ( 1902 ), p. 251 .EXTERNAL