Conductivity Ash Methods; Refined Sugar (28 G / 100 G Solution) Icumsa Gs2/3; Raw Sugar Or Melasses (5 G / 100 Ml Solution) Icumsa Gs 1/3/4/7/ 8 - Mettler Toledo SevenCompact S230 Conductivity Mode D'emploi

Temperature
[°C]
55
60
65
70
75
80
85
90
95
100
11.7 C onductivity ash methods
The meter can measure the conductivity ash (%) according to the two ICUMSA methods:
11.7.1 1 . Refined sugar (28 g / 100 g solution) ICUMSA GS2/3-17
The formula that the instrument uses is:
%(m/m)=0,0006x((C1/(1+0,026x(T-20)))–0,35x(C2/(1+0,026x(T-20)))
xK)
Where,
C1 = conductivity of the sugar solution in μS/cm with cell constant = 1 cm
C2 = conductivity of the water used in μS/cm to prepare the sugar solution with cell constant = 1
cm
-1
T = temperature in °C between 15°C and 25°C
K = cell constant
11.7.2 R aw sugar or melasses (5 g / 100 mL solution) ICUMSA GS 1/3/4/7/8-13
The formula that the instrument uses is:
%(m/V)=0,0018x((C1/(1+0,023x(T-20))-C2/(1+0,023x(T-20)))xK)
Where,
C1 = conductivity of the sugar solution in μS/cm with cell constant = 1 cm
C2 = conductivity of the water used to prepare the sugar solution in μS/cm with cell constant = 1
cm
-1
T = temperature in °C between 15°C and 25°C
K = cell constant of the used sensor
USP EP
(highly purfied water)
[µS/cm] [µS/cm]
2.1 2.1
2.2 2.2
2.42 2.42
2.5 2.5
2.7 2.7
2.7 2.7
2.7 2.7
2.7 2.7
2.9 2.9
3.1 3.1
EP
(purfied water)
[µS/cm]
-
8.1
-
9.1
9.7
9.7
-
9.7
-
10.2
-1
-1
Appendix 47