RAW MATERIALS TESTING
MORE THAN JUST SAMPLE ANALYSIS
Today’s market has an endless array of raw materials with new characteristics and new production processes, indicating a critical need to ensure product quality. Controlling the quality of a product through raw materials testing and sampling in the early stages of the development process can help minimize the need for product testing in later stages and avoid costly manufacturing downtime.
Our experts support your quality control team by:
- Providing input on product specifications
- Conducting raw materials testing to determine their impact from the process
- Evaluating the process to determine at which points the quality of the material is most likely to be affected
- Testing the final product to determine if it meets quality control
Working with Importers and Other Suppliers
RJ Lee Group can assist in pre-production development and the qualification of imported goods suppliers, verifying that the component material or product satisfies or continues to satisfy requirements as originally tested and evaluated. We will work with your buyers, sourcing agents and supply chains to:
- Define the required raw material specifications
- Analyze material samples and provide feedback
- Provide a solution or means of resolving raw materials issues
Gypsum, Gypsum Products and FGC Byproducts
Test | Analyte |
---|---|
Elemental Analysis | By acid digestion/ICP-AES/ICP-MS (major, minors, trace including heavy metals) |
XRD analysis for phase identification | |
XRD Rietveld Analysis for crystalline phase quantification (plus amorphous component if necessary) | |
Total and Respirable Crystalline Silica by NIOSH 7500 mod (XRD) | |
Asbestos by PLM or TEM | |
Free water, Combined water, Gypsum purity, Silica and insoluble residue by ASTM C471 | |
Thermogravimetric analysis studies (TGA) / Loss on ignition (LOI) | |
Soluble Salts by IC/ICP (Halogens, Alkali and Alkaline Earth Metals) | |
Elemental Sulfur (S8) by GC-ECD | |
Sulfite (SO3) by Iodine titration or TGA | |
Total Sulfur (S) (multiple techniques) | |
Calcium Carbonate (CCE-Calcium Carbonate Equivalent by ASTM C25) | |
Free lime (CaO) by ASTM C25 |
Calcium Carbonate/Limestone/Dolomite & Related Products
Test | Analyte |
---|---|
Calcium Carbonate Equivalent by ASTM C25 | |
Current USP and FCC monographs | Calcium Carbonate Assay |
Current USP and FCC monographs | Acid Insolubles Substances |
Current USP and FCC monographs | Mg/Alkali Salts |
Current USP and FCC monographs | Heavy metals |
Elemental Analysis | By borate fusion/XRF (majors) |
Elemental Analysis | By acid digestion/ICP-AES/ICP-MS (majors, minors, trace including heavy metals) |
Free lime by ASTM C25 | |
Thermogravimetric analysis studies (TGA) / Loss on ignition (LOI) | |
Total and Respirable Crystalline Silica by NIOSH 7500 mod (XRD) | |
XRD analysis for phase identification | |
XRD Rietveld Analysis for crystalline phase quantification (plus amorphous) |
Talc
Test | Analyte |
---|---|
Current USP and foreign Pharmacopeia Monographs | Identification (FTIR) |
Mg, Fe, Ca, Al content | |
Water and Acid Soluble Substances | |
Acidity / Alkalinity | |
Absence of Asbestos | |
Loss on Ignition (LOI) | |
Heavy metals | |
Elemental Analysis | By borate fusion/XRF (majors) |
By acid digestion/ICP-AES/ICP-MS (majors, minors, trace including heavy metals) | |
XRD analysis for phase identification | |
XRD Rietveld Analysis for crystalline phase quantification (plus amorphous) | |
Total and Respirable Crystalline Silica by NIOSH 7500 mod (XRD) | |
Asbestos by PLM / TEM/ XRD | |
Whiteness | |
Particle Size Distribution (PSD) by laser diffraction |
Kaolin/Kaolinite
Test | Analyte |
---|---|
Elemental Analysis | By borate fusion/XRF (majors) |
By acid digestion/ICP-AES/ICP-MS (majors, minors, trace including heavy metals) | |
XRD analysis for phase identification | |
XRD Rietveld Analysis for crystalline phase quantification (plus amorphous) | |
Total and Respirable Crystalline Silica by NIOSH 7500 mod (XRD) | |
Asbestos by PLM or TEM | |
Whiteness | |
Particle Size Distribution (PSD) by laser diffraction | |
Thermogravimetric analysis studies (TGA) / Loss on ignition (LOI) |