Sample preparation
Sample preparation procedures
SPLITTING CODE
ANALYTE CODE
DESCRIPTION
G_SPL G_SPL G_SPL
SPL_RF
Manual Riffle Splitting
SPL_X
Split additonal representative samples
SPL_RO
Rotary Split <3 Kg
DRYING CODE G_DRY G_DRY
ANALYTE CODE
DESCRIPTION
DRY105 DRY60
Sample Drying, 105ºC, <3 kg Sample Drying, 60ºC, <3 kg
G_DRY_KG
DRY_XT_WT
Sample Drying, Excessively Wet Samples
CRUSHING CODE
ANALYTE CODE
DESCRIPTION
G_CRU G_CRU
CRU6
Coarse crush 6 mm
CRU75
Crush <3 kg, 75% passing 2 mm
G_CRU_KG
CRU75_WT
Crush >3 kg, per kg, 75% passing 2 mm
G_CRU
CRU90
Crush <3 kg, 90% passing 2 mm
G_CRU_KG
CRU90_WT
Crush >3 kg, per kg, 90% passing 2 mm
G_PUL G_PUL
CRM
Continous Ring Mill Pulverize <3 kg, 90% passing 1 mm Continous Ring Mill Pulverize >3 kg, per kg, 90% passing 1 mm
CRM_KG
SCREENING CODE G_SCR_D G_SCR_D
ANALYTE CODE
DESCRIPTION
SOIL_WT G_SCR_KG
Dry Screening to -80mesh (180µm), per kg
Dry Screening, various micron particle sizes, per kg
G_FAS G_FAS
SCR75 SCR106
Metallic/Screening Procedure 75 µm Metallic/Screening Procedure 106 µm
Sample preparation or sample reduction involves crushing, splitting, and pulverizing a sample to produce a representative sub-sample. Good practice is essential for reliable analytical data. SGS is committed to providing dedicated sample preparation procedures at each of our locations. This involves technologically advanced equipment and often, physically separated sample processing areas to accommodate sample type and concentration. To reduce contamination risks, SGS experts select appropriate equipment, monitor performance and wear as well as routinely insert known barren reference materials. The choice of crushing and pulverizing methods depends on the sample type and mineral of interest. Please contact your SGS customer service agent for the best options.
PULVERIZING CODE
ANALYTE CODE
DESCRIPTION
G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL G_PUL
PUL85_CR
Pulv, Cr Steel, 85% 75µm 250g
PUL85_CR1000 PUL85_CR3000 PUL90_CR250 PUL90_CR1000 PUL90_CR3000
Pulv, Cr Steel, 85% 75µm 1000g Pulv, Cr Steel, 85% 75µm 3000g Pulv, Cr Steel, 90% 75µm 250g Pulv, Cr Steel, 90% 75µm 1000g Pulv, Cr Steel, 90% 75µm 3000g
PUL85_ZR PUL85_W PUL85_A
Pulv, Zirconia bowl, 50-80g
Bowl selection
Pulv, Tungsten Carbide Bowl <100g Pulv, Agate/Ceramic Mort & Pest <100g Pulv, Agate/Ceramic Ringmill <100g Disc Grind, 106µm 500g-1.5kg
BOWL TYPE
SAMPLE CAPACITY
MAIN CONTAMINANT
MINOR CONTAMINANT
PUL85_A_RING
Standard mild steel bowl
To 3 kg
Fe, Cr
Mo Mn
GRD106_A GRD106_B
Cr-free steel
500 g to 1.5 kg
Fe
Disc Grind, 106µm 1.5kg-3.5kg
Zicronia
100 g 150 g 100 g
Zr, Hf W, Co
AI Ta Si
PUL_R PUL_H
Ringmill Preparation, Carbon Sample(s) Hand Preparation, Carbon Sample(s)
Tungsten carbide
Agate
PUL_CON
Pulverization of Concentrates
Not all pulverizing bowl types are available at all locations, please contact your SGS customer service agent.
Samples can also be pulverized at customer specified grain sizes (i.e. 106 or 120 microns) and % passing requirements.
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