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 Laser
Particle Size Analysis
Thaisarco operates a Beckman Coulter
LS 13 320 Series Laser Diffraction Particle
Size Analyser for measuring particle size  distribution.
Using the Fraunhofer and Mie theories of light
scattering, the LS 13 320 Series offers the
highest resolution, reproducibility and accuracy
within the particle range of 0.04 micron to
2000 micron.
Sieve Analysis
Thaisarco uses the Octagon
2000 sieve shaker as supplied by Endecotts (UK).
The following certified sieves are available.
Micron
(ISO 3310) |
20 |
25 |
38 |
40 |
45 |
53 |
63 |
80 |
125 |
150 |
180 |
200 |
250 |
300 |
315 |
355 |
| Mesh (BS 410) |
635 |
510 |
400 |
- |
350 |
300 |
240 |
200 |
120 |
100 |
85 |
88 |
60 |
52 |
- |
44 |
| No. (ASTM) |
- |
- |
400 |
- |
325 |
270 |
230 |
- |
120 |
100 |
80 |
- |
60 |
50 |
- |
45 |
Apparent
Density (AD) & Flow Rate
Thaisarco uses a Hall Flow meter to
determine the flow characteristics and apparent
density of free flowing metal powders.
By interchanging the standard Hall Flow meter
funnel with the Carney Funnel, the instrument
can be adapted to determine the apparent density
of non free flowing powders (but not their flow
rate).
Determines apparent density as per ISO No. 3923/1.
Determines flow rate as per ISO No. 4490.
 Chemical
Analysis
Atomic Absorption Spectrometry (AAS)
Atomic Absorption Spectrometry (AAS)
is used for minor and trace level chemical analysis.
Determines apparent density as per ISO No. 3923/1.
Determines flow rate as per ISO No. 4490.
We operate a flame system and our latest model
is a Perkins Elmer AAnalyst 300. The following
is an example of our AAS capability.
Elements |
Limit
of determination |
| Ag, Be, Ca, Cd, K, Li, Mg, Na, Zn |
< 2
ppm |
| Co, Cu, Cr, Fe, Ni |
2-5 ppm |
| Ba, Bi, In, Pb |
5-20 ppm |
| Al, As, Sb |
10-50 ppm |
| Sn |
50-100 ppm |
 Optical
Emission Spectrometer (OES)
Our laboratory
operates simultaneous OES systems carrying out
multi-element chemical analysis at trace and
minor levels on a range of materials after suitable
dissolution procedures.
Our latest model is Spectro Lab-NG.
The following is an example of our OES capability.
Elements |
Limit of determination |
| Pb, Bi, Cu, Fe, Ni, Co, Ag, Cd, Al, Au,
In |
1-5 ppm |
| Sb, Zn |
5-10 ppm |
| As |
10 ppm |
ICP Optical
Emission Spectrometer (ICP-OES)
Thaisarco uses a sequential
ICP system carrying out multi-element chemical
analysis at trace and minor levels on a range
of materials after suitable dissolution procedures.
Current model used is a Perkin Elmer Optima
2100DV. The following is an example of our ICP
capability.
Elements |
Limit of determination |
| Li, ,Be, Mg, Ca, Sc, Fe, Sr, Cd, Ba, |
<0.1
ppb |
| Na, Al, K, Ti, V, Cr, Mn, Co, Ni, Cu,
Zn, Ge, Y, Zr, Nb, Mo, Ru, Ag, In, La, Hf,
Ta, W, Re, Ir, Pt, Au, Pr, Sm, Eu, Gd, Tb,
Dy, Ho, Er, Tm, |
0.1-1
ppb |
| B, C, Si, P, S, Ga, As, Se, Rb, Sn, Sb,
Te, Cs, Os, Tl, Pb, Bi, Ce, Nd, Th, U |
1-10 ppb |
| Cl, Br, I |
>10 ppb |
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