Instruction/ maintenance manual of the product ECN-0002/1 Kodak
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Proces sing KO DAK Moti on Picture Films, Mo dule 3, An alytica l Procedu res • H24. 03 1 Titrimetric Determination of Hypo Index, Thiosulfate, and Sulfite in EASTMAN Color Films, Process EC N -2 Fi.
2 Proc essi ng KODA K Moti on Pi cture Films , Modu le 3 , Anal ytica l Proc edu res • H24.03 additions of 34. 57 g/L t hiosulfate ion and 5.444 g/L sodium sulfite wer e mad e to that “ seasoned ” sample.
Process ing KODA K Motion Picture F ilms, Modu le 3, A nalytical Procedur es 3 Reco very Recovery is us ed instead of bi as for “ seasoned ” samples, si nce the component concentration level was not determ ined independently of the test method.
4 Proc essi ng KODA K Moti on Pi cture Films , Modu le 3 , Anal ytica l Proc edu res VISUAL TITRATION STATISTICS Repeatability S tandard Deviati on, 1s r and 95 Per cent Conf idence Es timate Repeatab.
Process ing KODA K Motion Picture F ilms, Modu le 3, A nalytical Procedur es 5 Reco very Recovery is us ed instead of bi as for “ seasoned ” samples, si nce the component concentration level was not determ ined independently of the test method.
6 Proc essi ng KODA K Moti on Pi cture Films , Modu le 3 , Anal ytica l Proc edu res • H24.03 APPARATUS All volumetric glasswar e sh ould meet all “ Class A ” specifications, as defined by American Society for Testing and Material s (ASTM) Standar ds E 287, E 288, an d E 969, unles s ot he rwis e stat ed.
Proc essing KO DAK Moti on Pictu re Films, Mo dule 3, Analytica l Procedu res • H24.03 7 B. Thiosulfate Determin ation 1. Sample Pretreatm ent: a. To a 250-m L beaker with a magnetic st ir-bar, add 75 mL of reagent water. b. Pipette 2.0 mL of s ample int o the 250-mL beaker.
8 Proc essi ng KODA K Moti on Pi cture Films , Modu le 3 , Anal ytica l Proc edu res • H24.03 CALCULATIONS For Potentiometric Titr ation 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 ), m L = (mL B lan k A – mL Sample A) (N Na 2 S 2 O 3 ) 0.
Proc essing KO DAK Moti on Pictu re Films, Mo dule 3, Analytica l Procedu res • H24.03 9 Example Potentiometric Calculations: Hypo In dex (HI) or Tot al Reductan ts: Thiosulfa te (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.
10 Proc essi ng KODA K Moti on Pi cture Films , Modu le 3 , Anal ytica l Proc edu res • H24.03 For Visual 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 ), m L = (mL Bl ank A – mL Sample A) (N Na 2 S 2 O 3 ) 0.
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If you already are a holder of Kodak ECN-0002/1, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Kodak ECN-0002/1.
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