BOQU BQ-OIW Manual do utilizador - Página 8

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BQ610-B Online Controller Operation manual

Calibration

PC tool name: SmartPC(DO).exe.

Note: If need any help, please contact Customer Service.

Calibration Solution Preparation

Analytical balance,

1L volumetric flask, 1L brown flask

Pipette

NDSA (1, 5-Naphthalene disulfonic acid disodium salt dihydrate), CAS: 76758-30-0

Stock Solution Preparation

Wise 0.1g NDSA, dissolve it in deionized water, transfer it to volumetric flask, constant volume to

1L, and get 100ppm NDSA stock solution.

Different concentrations of standard solution preparation

Dilute 100ppm NDSA stock solution according to the required concentration. For example, take

50mL 100ppm NDSA stock solution and volume it with deionized water to 1L, then get 5ppm

NDSA standard solution.

Note:

Please operate carefully in the process of configuring standard liquid, and wear

•

gloves;

The test should be carried out in a brown light-proof bottle;

•

In the calibration process, please use deionized water to clean the sensor and dry

•

it to avoid contaminating the standard solution.

50mL beaker, 100mL measuring cylinder, glass rod,

Lab spoon,