GRAIN SIZE DISTRIBUTION 
d103m,
d505 ±1m
d909.m
d10017.m
CHEMICAL ANALYSIS 
SiO99.996% Minimum
Impurities35 ppm Maximum
Max values of other elements 
Na4 ppm
K1.5 ppm
Li5 ppm
Al28 ppm
Ca1 ppm
Fe1 ppm
Ti5 ppm
U0.5 ppb
Th0.3 ppb
WATER-SOLUBLE IONS  
F-mg/l<0.05
Cl-mg/l0.16
NO2-mg/l<0.05
Br-mg/l< 0.1
Lead5.0< 0.1
NO3-mg/l0.42
PO43-mg/l< 0.2
SO42-mg/l< 0.2
WHITENESS 
RX98.0
RY97.8
RZ97.6
R45797.4
CONDUCTIVITY 
mS/m(S/cm)0.21
pH 
pH6.5