Specifications

Membrane Glass Types
X-1 is especially suited for low temperature, nonaqueous solutions and pH measurements under pH 12.
X-2 is best suited for most pH measurements where minimal or no Na
+
is present. It is a low-resistant glass with a very fast and stable response
and is designed for pH ranges of 0 to 13 and temperatures of 0 °C to 135 °C.
X-3 is especially formulated for continuous, long-term use at high temperatures, particularly in strong alkaline solutions above pH 11. It
experiences negligible Na
+
ion error above 13 pH. The impedance of the glass is much higher than other glasses, and a slower response will be
experienced at room temperature and below. Response time increases as the temperature is elevated.
A General purpose, aqueous pH measurements. Quality control, general
laboratory and aquarium water.
B Tris buers, clinical, and biological media containing proteins, creams, fats
and cosmetics.
C Research measurements, fruit juices, beer, milk and yogurt.
D High viscosity solutions such as emulsions, suspensions, paints and
varnishes where frequent cleaning of the reference is necessary.
E Non aqueous solutions. Must be used with special reference
electrolyte ECRE015.
F Low temperature measurements.
G Low ionic strength solutions, such as high purity water.
H High temperature measurements.
I Surface measurements such as paper, skin, textile, leather and agar plates.
J Solid or semi-solid samples such as cheese, meats, fruits, bread, or other
similar sample.
K Rugged use; ruggedized electrode tip. Aqueous media in general.
L Portable pH meter; eld and school use.
M Micro sample, such as semi-micro cuvettes and NMR tube.
N Test tube measurements.
O Reference contamination problems which require a double junction
reference, such as media containing suldes, bromides, iodides,
and cyanides.
P Measurements in long, narrow vessels.
Q Soil pH measurements.
R Swimming pool, pH control under continuous ow conditions.
S Isoelectric focusing gels and other surface measurements that require a
small diameter at tip.
T Photographic chemical; high pH sample (12 to 14 pH).
U ORP measurements for general purpose.
V Swimming pool ORP measurement.
W ORP measurement for cyanide use.
X ORP measurement requiring a double junction reference.
Y Hydrouoric acid and abrasive solution measurements.
Z Potentiometric measurements of chlorides and other halides.
Application Codes & Descriptions
Electrodes | Electrode Selection Guide
page | 86
Electrode Selection Guide
4 Simple Steps To Choosing Your Electrode
Step 1: Select application
Step 2: Select membrane glass type of your electrode
Step 3: Select electrode material
Step 4: Select from table