Kodak ECN-0002/1 - Manuals - manualsarea.com

Page 2 - POTENTIOMETRIC TITRATION STATISTICS; Repeatability Standard Deviation, 1s; The 95 percent confidence estimate (calculated using the; Bias; A statistically significant bias for thiosulfate of

2 Processing KODAK Motion Picture Films, Module 3, Analytical Procedures • H24.03 additions of 34.57 g/L thiosulfate ion and 5.444 g/L sodium sulfite were made to that “seasoned” sample. POTENTIOMETRIC TITRATION STATISTICS Repeatability Standard Deviation, 1s r & 95 Percent Confidence Estimate (...

Page 3 - Recovery

Processing KODAK Motion Picture Films, Module 3, Analytical Procedures 3 Recovery Recovery is used instead of bias for “seasoned” samples, since the component concentration level was not determined independently of the test method. It is defined as the calculated mean for the “seasoned” sample with ...

Page 4 - VISUAL TITRATION STATISTICS; Statistically significant biases were found for hypo index,

4 Processing KODAK Motion Picture Films, Module 3, Analytical Procedures VISUAL TITRATION STATISTICS Repeatability Standard Deviation, 1s r and 95 Percent Confidence Estimate Repeatability standard deviation is an estimate of the variability one trained analyst should be able to obtain under favorab...

Page 5 - The customer standard deviation (1s

Processing KODAK Motion Picture Films, Module 3, Analytical Procedures 5 Recovery Recovery is used instead of bias for “seasoned” samples, since the component concentration level was not determined independently of the test method. It is defined as the calculated mean for the “seasoned” sample with ...

Page 6 - APPARATUS; For Visual Titration:; REAGENTS; For Potentiometric Titration

6 Processing KODAK Motion Picture Films, Module 3, Analytical Procedures • H24.03 APPARATUS All volumetric glassware should meet all “Class A” specifications, as defined by American Society for Testing and Materials (ASTM) Standards E 287, E 288, and E 969, unless otherwise stated.For Potentiometric...

Page 7 - B. Thiosulfate Determination; For Visual Titration; Treatment and Titration of Sample:

Processing KODAK Motion Picture Films, Module 3, Analytical Procedures • H24.03 7 B. Thiosulfate Determination 1. Sample Pretreatment: a. To a 250-mL beaker with a magnetic stir-bar, add 75 mL of reagent water. b. Pipette 2.0 mL of sample into the 250-mL beaker. c. Add 5 mL of 6% formaldehyde (pH 3....

Page 8 - CALCULATIONS; SO

8 Processing KODAK Motion Picture Films, Module 3, Analytical Procedures • H24.03 CALCULATIONS For Potentiometric Titration A. Hypo Index (HI) or Total Reductants: Where: B. Thiosulfate (S 2 O 3 = ): Where: C. Sodium Sulfite (Na 2 SO 3 ): Where: HI (1), mL = (mL Blank A – mL Sample A) (N Na 2 S 2 O ...

Page 9 - Titration

Processing KODAK Motion Picture Films, Module 3, Analytical Procedures • H24.03 9 Example Potentiometric Calculations: Hypo Index (HI) or Total Reductants: Thiosulfate (S 2 O 3 = ): Sodium Sulfite (Na 2 SO 3 ): Titration mL 0.1 N Na 2 S 2 O 3 Titrant Blank A = 40.50 Sample A = 21.85 Blank B = 40.55 ...