Accessories - Hach Micro Dist Manuel D'utilisation

Replacement parts
Description
Assembly press
Fuse, 15 A, 250 VAC, slow-blow
Fuse, 6.3 A, 250 VAC, slow-blow
Micro Dist, digital, 110 VAC
Pipette, 0.2–1.0 mL
Pipette tips for BBP078
Power cord, 115 VAC, 15 A
Power cord, 230 VAC, 10 A
Tube, Micro Dist user-fill
Tube rack, 24 holes
Tube rack, 60 holes

Accessories

Description
Tube, Micro Dist user-fill
Tube, Micro Dist user-fill
Tube, Micro Dist user-fill for Ammonia-1 or -2
Tube, Micro Dist user-fill for Ammonia-1 or -2
Tube, Micro Dist pre-filled, for Cyanide-1, -2, -3 and Sulfide-2
Tube, Micro Dist pre-filled, for Phenolics-1
Tube, Micro Dist pre-filled, for Tritium-1
1
Specially prepared for determination of NH
Appendix
Cyanide-1 Method
USEPA Method 335.2 scaled-down
For 6.0 mL of micro distilled sample, the scale-down factor for this batch colorimetric method is
6/50 or 0.120. The changes suggested in apparatus or technique are [added in brackets]. The scale-
down gives the same concentrations of reagents, sample and analyte from Section 8.7, p 335.2–4.
8.7 Withdraw 6.0 mL of the solution from the flask [collector tube] and transfer to a 20 mL erlenmeyer
flask. Add 1.80 mL of sodium phosphate solution (7.6) and mix.
8.7.1 Pyridine-barbituric acid method: Add 0.24 mL of chloramine T (7.12) and mix. After one to two
minutes, add 0.60 mL of pyridine-barbituric acid solution (7.13.1) and mix. [Add 3.36 mL of deionized
water] and mix again. Allow eight minutes for color development, then read absorbance at 578 nm in
a 1 cm cell within 15 minutes.
8.7.2 Pyridine-pyrazolone method: Add 0.060 mL of chloramine T (7.12) and mix. After one to two
minutes add 0.60 mL of pyridine-pyrazolone solution (7.13.1) and mix. [Add 3.54 mL deionized water]
and mix again. After 40 minutes read absorbance at 620 nm in a 1 cm cell.
24 English
Quantity
1
1
.
3
1
1
1
1
1 BBP078
100 BBP079
1
1
10
1 2497903
1 2497901
Quantity
50
100
50 A17517A
100 A17117A
21
21
10
Item no.
17023L
17085
20210
A17102
17040L
31196
A17017
Item no.
A17517
A17117
A17001
A17002
A17014