SiS Sensoren Instrumente Systeme GmbH

DOA Dissolved Oxygen Analyser Accessory Sets

SiS offers three kinds of accessory sets and a chemical set for the use with the DO Analyser.

Chemical Set

Quantity	Description	Manufacturer
500 g	NaOH	Merck
1000 g	NaI	Merck
1000 g	MnCl₂ x 4H₂O	Merck
500 g	Na₂S₂O₃ x 5H₂O	Merck
2	Titrisol KIO₃, 1/60 mol/l (prepared standard solution) OR KIO₃ salt	Merck

All chemicals are of pro analysis grade or better. The quantities are sufficient for at least 2000 sample titrations. Other quantities / weights on request. Sulfuric acid (H₂SO₄, 50%) is also required, but should be purchased locally due to transportation restrictions. The prepared Titrisol standard has to be diluted. To avoid dilution of 1:100 we recommend dilution of 1:10 and usage of 1 ml pipettes for the standard determination. For blank determination, a 0.1 ml pipette may be used with the prepared standard or a 1 ml pipette with a diluted sub-standard. For highest precision the usage of weighted and diluted KIO₃ salt is recommended.

Economy Set

DOA Economy Accessory Set

This is the minmum requirement with no calibration facilities. Calibrated bottles are provided.

Quantity	Description	Manufacturer
1	Chemical Set	SiS / Merck
50	Sample bottles (50, 125 or 250 ml), wide mouth, calibrated, burn-in marked, soda-lime glass
20	Stirring bars, PTFE
1	Pipette carousel for 6 pipettes	Eppendorf
4	Fixed volume pipettes, 1000 µl (2 x 500 µl with 50 ml bottles)	Eppendorf
2000	Pipette tips 50 - 1000 µl	Eppendorf
2	Beakers, 100 ml, borosilicate glass (Duran), 50 x 71 mm	Schott
2	Beakers, 1000 ml, borosilicate glass (Duran), 105 x 145 mm	Schott
5	Bottles, 1000 ml, amber glass, narrow neck, screwed thread
5	Bottles, 250 ml, square, amber glass, wide neck, screwed thread	Schott
5	Funnels, natural, polypropylene
1	Washing bottle, 1000 ml, polypropylene, with spraying inset
1	Volumetric flask, 1000 ml, class DIN A +/- 0.4 ml	Brand
1	Electronic pocket thermometer with external sensor	Hanna
1	Electronic thermometer	Amarell
1	Electronic balance, 2000g / 1.0 g	Kern

Other quantities (e.g. number of bottles) on request. The differences to the Economy Set are coloured.

Standard Set

DOA Standard Accessory Set

Like the Economy Set, but with variable volume pipettes, a high-precision pipette, and a more precise balance:

Quantity	Description	Manufacturer
2	Variable volume pipettes, 100 - 1000 µl	Eppendorf
1	Variable volume pipette, 500 - 5000 µl	Eppendorf
1	Fixed volume high-precision pipette, 1000 µl	Eppendorf
1000	Pipette tips 50 - 1000 µl	Eppendorf
1000	Pipette tips 100 - 5000 µl	Eppendorf
1	Electronic balance, 2000 g / 0.1 g	Kern

The differences to the Precision Set are coloured.

Precision Set

Like the Standard Set, but with borosilicate bottles, 3 electronic pipettes, a barometer and a high precision balance for preparation of the KIO₃ standard:

Quantity	Description	Manufacturer
50	Sample bottles (50, 125 or 250 ml), wide mouth, calibrated, burn-in marked, borosilicate glass
2	Variable volume electronic pipettes, 100 - 1000 µl	Eppendorf
1	Variable volume electronic pipette, 500 - 5000 µl	Eppendorf
1	Charging stand for 4 electronic pipettes	Eppendorf
1	Digital barometer
1	Precision two range balance, 60g / 0.01 mg - 210 g /0.1 mg	Kern

SiS GmbH reserves the right to change specifications without prior notice.