User Guide

58
15.4 pH & ORP Electrodes
There is a wide range of electrodes for the user’s applications. A sampling is shown below.
Note that although only one electrode for each application is shown, there are multiple
electrodes available and these electrodes are often multi-application adaptable.
APPLICATION ELECTRODE
General purpose, aqueous pH measurements. Quality control, general laboratory
and aquarium water.
EC-FG73504
Tris buffers, clinical and biological media containing proteins, creams, fats and
cosmetics.
EC-FG73905
Research measurements, fruit juices, beer, milk and yogurt. EC-FG73905
High viscosity measurements such as emulsions, suspensions, paints and
varnishes.
EC-FG63506
Non aqueous solutions EC-FG73701
Low temperature measurements EC-FG73504
Low ionic strength solutions EC-FG73905
High temperature measurements EC-FG73792
Surface measurements such as paper, skin textile, leather and agar plates EC-FG72520
Solid or semi-solid samples such as cheese, meats, fruits, bread, etc. EC-FG63511
Portable pH meters, school and field use EC-FE73526
Micro samples (semi-micro curettes and NMR tubes) EC-FG43901
Test tube measurements EC-FG63507
Reference contamination problems EC-FG73701
Measurements in long narrow vessels EC-FG63507
Swimming pool pH control under continuous flow conditions EC-FE73526
Isoelectric focusing gels and other surface measurements that require small
diameter flat tip
EC-FG52910
Photographic chemicals, high pH samples (12 to 14 pH ) EC-FG74519
ORP measurements for general purpose EC-FG79601
Swimming pool ORP measurements EC-FE79602
ORP measurements for cyanide use EC-FG78685
ORP measurements requiring double junction reference EC-FG79861
Hydrofluoric acid and abrasive solution measurements EC-FE77689
Potentiometric measurements of chlorides and other halides. Bio-technology,
steam sterilizeable.
EC-FG70601