MRC INE-DZB-712, Инструкция по эксплуатации

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INE- DZB-712 Portable Multi-parameter Analyzer
37
7. Appendix
A. Compound of Fluorine ion solution
a. Standard Solution
：
Precisely weigh 4.20g NaF dissolve it in distilled water, add water to 1000mL and store in plastic
bottle. This solution is 1×10
－
1 mol/L F
－
。
1×10
－
2
mol/L F
－
：
take 1×10
－
1
mol/L F
－
solution 100ml
，
dilute it to 1000ml
；
1×10
－
3 mol/L F
－
：
take 1×10
－
2 mol/L F
－
solution 100ml
，
dilute it to 1000ml
；
b. Total Ion Strength Adjustment Agent (TISAB)
Weigh 58.8g Na
3
C
6
H
5
O
7
·2H
2
O and 85g NaNO
3,
dissolve these in distilled water, adjust the pH
value of solution to 5 ~ 6, then dilute the solution to 1000mL
c. Solution for Testing

pF2(1×10
－
2 mol/L F
－
)
：
take 1×10
－
1 mol/L F
－
solution 10ml
，
add total ion strength
adjustment agent (TISAB) 20ml, dilute the solution with distilled water to 100mL

pF3(1×10
－
3
mol/L F
－
)
：
take 1×10
－
2
mol/L F
－
solution 10ml
，
add total ion strength
adjustment agent (TISAB) 20ml, dilute the solution with distilled water to 100mL

pF4(1×10
－ 4
mol/L F
－
)
：
take 1×10
－ 3
mol/L F
－
solution 10ml
，
add total ion strength
adjustment agent (TISAB) 20ml, dilute the solution with distilled water to 100mL
B. Relationship Chart between DO Concentration and Temperature
Temp(
℃
) C
S
(mg/L) ∆C
S
(mg/L) Temp(
℃
)
C
S
(mg/L) ∆C
S
(mg/L)
0.0 14.46 0.0925 21.0 8.90 0.0467
1.0 14.22 0.0890 22.0 8.73 0.0453
2.0 13.82 0.0857 23.0 8.57 0.0440
3.0 13.44 0.0827 24.0 8.41 0.0427
4.0 13.09 0.0798 25.0 8.25 0.0415
5.0 12.74 0.0771 26.0 8.11 0.0404
6.0 12.42 0.0745 27.0 7.96 0.0393
7.0 12.11 0.0720 28.0 7.82 0.0382
8.0 11.81 0.0697 29.0 7.69 0.0372
9.0 11.53 0.0675 30.0 7.56 0.0302
10.0 11.26 0.0653 31.0 7.43
11.0 11.01 0.0633 32.0 7.30
12.0 10.77 0.0614 33.0 7.18
13.0 10.53 0.0595 34.0 7.07
14.0 10.30 0.0577 35.0 6.95
15.0 10.08 0.0559 36.0 6.84
16.0 9.86 0.0543 37.0 6.73
17.0 9.66 0.0527 38.0 6.63
18.0 9.46 0.0511 39.0 6.53
19.0 9.27 0.0496 40.0 6.41
20.0 9.08 0.0481
This chart is digested from ISO5813-1983 water analyze – measurement of dissolved oxygen in
water – iodine titration