PRODUCT INFORMATION
Milli-Q Synthesis/Synthesis A10 5
Chapter 2 PRODUCT INFORMATION
2-1 MILLI-Q PRODUCT WATER SPECIFICATIONS
WATER PRODUCED BY THE MILLI-Q SYNTHESIS OR SYNTHESIS A10
FLOWRATE
0.8 - 1.2 LPM with Millipak
Express 20
RESISTIVITY
Minimum 18.0 M.cm @ 25C
Typically 18.2 M.cm @ 25C
PARTICLES
1/ml (particle size > 0.22 m)
PYROGENS
< 0.001 Eu/ml
TOC
Maximum 5 ppb (this specification came from test
conditions where a Milli-Q Synthesis was fitted with a
Q-Gard
1 Purification Pack and a Quantum EX
Ultrapure Cartridge and the feedwater came from a
Millipore RiOs Water System. The feedwater TOC
value was < 50 ppb). The TOC of the Milli-Q
Product Water can vary as a function of the
feedwater TOC.
MICRO-ORGANISMS
1 CFU/ml
COMPARISON OF MILLI-Q WATER AND ASTM STANDARD SPECIFICATIONS
Milli-Q Product Water Quality will meet or exceed ASTM Type I Standard Specifications for Reagent Grade Water.
The specifications for ASTM Type I Reagent Grade Water are shown below. Note that the Water Quality
Specifications for a Milli-Q Synthesis (or Milli-Q Synthesis A10) are listed in the section just above.
(From “Standard Specification for Reagent Water” Designation: D 1193 – 99; American Society For Testing And
Materials)
ASTM Type I Standard Specifications for Reagent Grade Water
Parameter Value
Conductivity @ 25C (S/cm) 0.056
Resistivity @ 25C (M.cm) 18
Total Silica max. value (g/L) 3
Total Organic Carbon max. value (g/L) 100
Chlorides max. value (g/L) 1
Sodium max. value (g/L) 1
pH not specified (The measurement of pH has been
eliminated for this standard because this grade of
water does not contain constituents in sufficient
quantity to alter pH)
To Next Page
Loading...
Need help?
General
