Different strategies have been employed to obtain SSC samples for turbidimeter
calibration to overcome this problem (Minella et al.
However, commercially available turbidimeters
are still quite expensive instruments.
Dissolved oxygen, conductivity, pH and turbidity were measured in situ by using a WTW multimeter (Oxi 340) connected to appropriate electrodes and a turbidimeter
(Hach Lange, TSS portable).
In this article we make use of our in-line turbidimeter
to estimate in real time the breakup and deformation of the droplets of the dispersed (second) phase as a function of the reprocessing and die-head pressure using well-behaved polymer mixtures.
We used a Multiparameter Meter (Hanna Instruments, Schertz, Texas, USA) to measure pH and specific conductance and used an Aquafluor Handheld Fluorometer and Turbidimeter
(Turner Designs, Sunnyvale, California, USA) to measure chlorophyll-a concentration and turbidity.
GF PIPING SYSTEMS has added the new Signet 4150 Turbidimeter
to its extensive line of analytical instrumentation.
The following variables were determined in the field: water temperature ([degrees]C) and dissolved oxygen (mg/L) using an oximeter (Schott Glaswerke Mainz, handylab OX1); electrical conductivity ([micro]S/cm) using a conductivity meter (Hanna Instruments HI8733); turbidity of the water (UNT) using a turbidimeter
(Hanna Instruments, HI 93703); pH using a potentiometer (Digimed, DMPH-2); and water transparency (m) using a Secchi disk.
Turbidity was measured using the nephelometric method with a 2100P HACH portable turbidimeter
Subsamples were drawn from the integrated water samples and analyzed by a Turner Designs Aquafluor(TM) Handheld Fluorometer and Turbidimeter
Redox potential and pH were analysed using a combination platinum/reference (Ag/Agcl) electrode (ATI Russel,) pH/Eh meter, turbidity was determined using Hach turbidimeter
2100P, TDS and conductivity with conductivity/TDS meter (Hach CO.
The process elements are the following: the Catching, Filtering and Treating Station 1(CFTS 1), the Dreans 1 together with the Catching, Filtering and Treating Station 2(CFTS2), the turbidimeter
TBM, the valves: VTJ, VTT, VT3, VT33, VT1, VT11, VT0, VT5, VT2, VT22, VT4, VT44, the flow sensors: TD0, TD1, TD2, TD3, TD4, the 500 [m.
Chloride was quantified by a chloride-specific electrode and turbidity with a portable turbidimeter
(HACH, model 2100P, Loveland, CO) reading as Nephelometric Units (NTU).