Stewart Assay and Environmental Laboratories LLC
APPROVE
Chief of АС МED КR ___________ D. Urmanbetov
Seal
Attachment to accreditation certificate
№ ________________________________________
of «_____»____________________________200___г.
SCOPE OF ACCREDITATION
Laboratory of Stewart Assay and Environmental Laboratories LLC
No.
1
1
Name of testing objects
Identification of the document on
production, standards of control
2
Ores and their processed products,
geological samples.
3
-
Name of the
tests/determinate
indicators
4
Sample preparation (crushing,
pulverizing, screening) for analysis
Marking of document
on testing methods/
determinate indexes
5
SAEL-SP-1
Range of dimensions,
unit of measure*
 Fineness of
crushing
 Fineness of
pulverization
6
 -2 mm
 -0.075mm
2
Ores and their processed products,
geological samples.
-
Au by Fire Assay with Atomicabsorption finish.
SAEL-AuFA1A
 Au
 0.002 – 10 g/t
3
Ores and their processed products,
geological samples.
-
Au by Fire Assay with Atomicabsorption finish.
AuFA2
 Au
 0.010 – 10 g/t
Managing Director of Stewart Assay and Environmental
Laboratories LLC
SEAL
Schudro V.K.
Laboratory Manager of Stewart Assay and Environmental
Laboratories LLC
Imanakunov S.B.
page. 1 of 7
Stewart Assay and Environmental Laboratories LLC
1
4
2
Ores and their processed products,
geological samples.
Managing Director of Stewart Assay and Environmental
Laboratories LLC
SEAL
Schudro V.K.
3
-
4
Multi-element analysis by atomicemission spectrometer with
inductively coupled plasma after
preliminary chemical digestion of
samples. Elements to be determined:

Silver

Aluminium

Arsenic

Barium

Beryllium

Bismuth

Calcium

Cadmium

Cobalt

Chromium

Copper

Iron

Mercury

Potassium

Lanthanum

Magnesium

Manganese

Molybdenum

Sodium

Nickel

Phosphorus

Lead

Antimony

Scandium

Selenium

Tin

Strontium

Tellurium

Titanium

Vanadium

Tungsten

Yttrium

Zinc

Zirconium

Uranium
5
6
SAEL-WA-1/1
SAEL-ICP-1



































Silver
Aluminum
Arsenic
Barium
Beryllium
Bismuth
Calcium
Cadmium
Cobalt
Chromium
Copper
Iron
Mercury
Potassium
Lanthanum
Magnesium
Manganese
Molybdenum
Sodium
Nickel
Phosphorus
Lead
Antimony
Scandium
Selenium
Tin
Strontium
Tellurium
Titanium
Vanadium
Tungsten
Yttrium
Zinc
Zirconium
Uranium



































1-100g/t
0.01-5%
1.5g/t-1%
0.25g/t-1%
0.05-500g/t
3.5g/t-1%
0.01-5%
0.25-500g/t,
0.25g/t-1%
0.5g/t-1%
0.25g/t-1%
0.01-5%
0.5-1000g/t
0.01-5%
1g/t-1%
0.01-5%
0.5g/t-1%
0.5g/t-1%
0.01-5%
0.5g/t-1%
5g/t-1%
3.5g/t-1%
2.5g/t-1%
0.1g/t-1%
1.5-1000g/t
2.5-1000g/t
0.25g/t.-1%
5g/t-1%
2.5g/t-1%
1g/t-1%
5g/t-1%
0.25-1000g/t
0.5g/t-1%
0.5g/t-1%
50g/t-1%
Laboratory Manager of Stewart Assay and Environmental
Laboratories LLC
Imanakunov S.B.
page. 2 of 7
Stewart Assay and Environmental Laboratories LLC
1
5
2
Ores and their processed products,
geological samples.
3
6
Environmental samples (natural and sewage)
-
Managing Director of Stewart Assay and Environmental
Laboratories LLC
SEAL
Schudro V.K.
4
Determination of silver by atomicabsorption method after a preliminary
chemical digestion of samples.
Multi-element analysis by atomicemission spectrometer with
inductively coupled plasma. Elements
to be determined:

Silver

Aluminium

Arsenic

Barium

Beryllium

Calcium

Cadmium

Cobalt

Chromium

Copper

Iron

Mercury

Potassium

Magnesium

Manganese

Molybdenum

Sodium

Nickel

Lead

Antimony

Zinc

Selenium

Silicon

Vanadium

Uranium
5
SAEL-WA-3
SAEL-AA-2
 Silver
6
 1-100ppm
SAEL-ICP-2

























Silver
Aluminum
Arsenic
Barium
Beryllium
Calcium
Cadmium
Cobalt
Chromium
Copper
Iron
Mercury
Potassium
Magnesium
Manganese
Molybdenum
Sodium
Nickel
Lead
Antimony
Zinc
Selenium
Silicon
Vanadium
Uranium

























0.003-1mg/L
0.03-10mg/L
0.04-1mg/L
0.001-1mg/L
0.0002-0.1mg/L
0.02-200mg/L
0.002-1mg/L
0.004-1mg/L
0.008-1mg/L
0.005-1mg/L
0.003-10mg/L
0.01-10mg/L
0.09-100mg/L
0.05-100mg/L
0.001-1mg/L
0.004-1mg/L
0.02-200mg/L
0.01-1mg/L
0.02-1mg/L
0.02-1mg/L
0.0007-1mg/L
0.02-1mg/L
0.01-20mg/L
0.006-1mg/L
5-10mg/L
Laboratory Manager of Stewart Assay and Environmental Laboratories
LLC
Imanakunov S.B.
page. 3 of 7
Stewart Assay and Environmental Laboratories LLC
1
7
2
Air dust on filter
3
-
4
Determination of metals by atomicemission method with inductively
coupled plasma after a preliminary
chemical digestion.

Beryllium

Manganese

Zinc

Calcium

Barium

Iron

Aluminium

Cobalt

Magnesium

Nickel

Lead

Copper
5
6
SAEL-WA-4
SAEL-ICP-2












Beryllium
Manganese
Zinc
Calcium
Barium
Iron
Aluminium
Cobalt
Magnesium
Nickel
Lead
Copper
 0.00020.1mg/L
 0.001-1mg/L
 0.0007-1mg/L
 0.02-200mg/L
 0.001-1mg/L
 0.003-10mg/L
 0.03-10mg/L
 0.004-1mg/L
 0.05-100mg/L
 0.01-1mg/L
 0.02-1mg/L
 0.005-1mg/L
8
Air dust on filter
-
Determination of lead by atomic
emission method with inductively
coupled plasma after a preliminary
chemical digestion
SAEL-WA-27
SAEL-ICP-2
 Lead
 0.02-1mg/L
9
Air dust on filter
-
Determination of silica oxide by
atomic emission method with
inductively coupled plasma after a
preliminary chemical digestion
SAEL-WA-28
SAEL-ICP-2
 Silica oxide
 0.02-1mg/L
10
Environmental samples
(ground waters)
-
Determination of total cyanide by
photo colorimetric method or by
titration. Determination of cyanide,
CN WAD by photo colorimetric
method or by titration.
Determination of free cyanide by
photo colorimetric method
СЭВ. Унифицированные
методы исследования
качества вод. Ч.1, М.,
1977г. стр. 775
 CN total
 0.005-30mg/L
Managing Director of Stewart Assay and Environmental
Laboratories LLC
SEAL
Schudro V.K.
Laboratory Manager of Stewart Assay and Environmental
Laboratories LLC
Imanakunov S.B.
page. 4 of 7
Stewart Assay and Environmental Laboratories LLC
1
11
2
Environmental samples
(ground waters)
3
-
4
Determination of carbonate and
bicarbonate by volumetric method
5
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 222
12
Environmental samples
(ground waters)
-
Determination of total alkalinity by
volumetric method
 Total alkalinity
 1-1000 mg/L
13
Environmental samples
(ground waters)
-
Determination of total phosphorus
photo colorimetric method
 P
 0.01-50 mg/L
14
Environmental samples
(ground waters)
-
Determination of suspended solids by
gravimetric method
 Suspended
solids
 1-10000 mg/L
15
Environmental samples
(ground waters)
-
Determination of nitrite by photo
colorimetric method
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 813
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 694
MH KR. Collection of
standardized methods for
water analysis. Bishkek,
2000, page 43
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 419
 NO2
 0.001-50 mg/L
16
Environmental samples
(ground waters)
-
Determination of nitrate by photo
colorimetric method
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 397
 NO3
 0.1-50 mg/L
17
Environmental samples
(ground waters)
-
Determination of sulfate by
gravimetric method
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 613
 SO4
 1-1000 mg/L
18
Environmental samples
(ground waters)
-
Determination of chloride by titration
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 743
 Cl
 0.5-1000 mg/L
19
Environmental samples
(ground waters)
-
Determination of dry residue by
gravimetric method
 Dry residue
 1-10000 mg/L
20
Environmental samples
(ground waters)
-
Determination of thiocyanate by
photo colorimetric method
MH KR. Collection of
standardized methods for
water analysis. Bishkek,
2000, page 51
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 546
 SCN
 0.05-25 mg/L
21
Environmental samples
(ground waters)
-
Determination of turbidity by
nephelometric method
SAEL-WA-23
 Turbidity
 0.01-1000NTU
Managing Director of Stewart Assay and Environmental
Laboratories LLC
SEAL
Schudro V.K.
 CO3
 HCO3
6
 1-1000 mg/L
 1-1000 mg/L
Laboratory Manager of Stewart Assay and Environmental
Laboratories LLC
Imanakunov S.B.
page. 5 of 7
Stewart Assay and Environmental Laboratories LLC
1
22
2
Environmental samples
(ground waters)
3
-
4
Determination of рН by
potentiometric method
5
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 252
23
Environmental samples
(ground waters)
-
Determination of total hardness by
titration
 Total hardness
 1-1000 mg/L
24
Environmental samples
(ground waters)
-
Determination of ammonium by
photo colorimetric method
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 172
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 69
 NH3
 0.04-50 mg/L
25
Environmental samples
(ground waters)
-
 0.04-50 mg/L
Ores and their processed products,
geological samples.
-
СЭВ. Unified methods of
water quality research. P.1,
M., 1977. page 47
SAEL-WA-40
SAEL-ICP-1
 TKN
26
Determination of total nitrogen
according to Kjeldhl by photo
colorimetric method
Determination of gold by cyanidation
method (BLEG test)
 Au
 0.010-10 г/т
27
Ores and their processed products,
geological samples.
Ores and their processed products,
geological samples.
Ores and their processed products,
geological samples.
-
Determination of S total by Leco
analyzer
Determination of C total by Leco
analyzer
Determination of S sulfide by Leco
analyzer after preliminary chemical
processing
SAEL-WA-42
 S total
 0.01-50%
SAEL-WA-42
 C total
 0.01-50%
SAEL-WA-36
 S sulfide
 0.01-50%
30
Ores and their processed products,
geological samples.
-
Determination of C organic by Leco
analyzer after preliminary chemical
processing
SAEL-WA-38
 C organic
 0.01-20%
31
Environmental samples
(ground waters)
-
Determination of nitrate, nitrite,
fluoride, chloride, sulfate, bromide
and phosphate by ion
chromatography.
SAEL-WA-47













28
29
Managing Director of Stewart Assay and Environmental
Laboratories LLC
SEAL
Schudro V.K.
-
 рН
Nitrate
Nitrite
Fluoride
Chloride
Sulfate
Bromide
6
 1-14 единиц рН
0.01-500mg/L
0.01-500mg/L
0.01-500mg/L
0.01-500mg/L
0.01-500mg/L
0.01-500mg/L
0.01-500mg/L
Laboratory Manager of Stewart Assay and Environmental
Laboratories LLC
Imanakunov S.B.
page. 6 of 7
Stewart Assay and Environmental Laboratories LLC
32
Biological materials (blood, urine, tissues,
plants)
Managing Director of Stewart Assay and Environmental
Laboratories LLC
SEAL
Schudro V.K.
-
Determination of metals by atomicemission method with inductively
coupled plasma after premineralization
 Iron
 Copper
 Manganese
 Cadmium
 Cobalt
 Lead
 Zinc
SAEL-WA-46
SAEL-ICP-2







Iron
Copper
Manganese
Cadmium
Cobalt
Lead
Zinc







0.003-10mg/L
0.005-1mg/L
0.001-1mg/L
0.002-1mg/L
0.004-1mg/L
0.005-1mg/L
0.0007-1mg/L
Laboratory Manager of Stewart Assay and Environmental
Laboratories LLC
Imanakunov S.B.
page. 7 of 7