Resources
Safety data sheets, certificates, technical notes, and grade guides to support your work in the laboratory and beyond.
Documents & Tools
Safety Data Sheets (SDS)
8,000+ documentsGHS-compliant SDS for all catalogue products. Includes hazard classification, handling, storage, first aid, and disposal information.
Search SDS LibraryCertificates of Analysis (COA)
Lot-specificLot-specific analytical test results confirming that each batch meets our published specification. Search by lot number or product code.
Download COACertificates of Origin (COO)
On requestCountry of origin declarations for import/export and customs purposes. Available on request for most products.
Request COOSpecifications & Grades
GuideComparison of chemical grades — ACS, HPLC, GC, USP/BP, Reagent, Technical, and more — to help you select the right purity level.
Grade Selection GuideTechnical Notes
FreeApplication notes, method references, and troubleshooting guides written by our in-house chemists for common laboratory workflows.
Browse Tech NotesPackaging & Storage
GuideGuidelines on appropriate container materials, temperature requirements, and light sensitivity for common chemical families.
View GuidelinesFeatured Technical Notes
View allChoosing the Right HPLC Solvent Grade
ACS vs HPLC vs LC-MS grade — understanding UV cut-off, gradient grade, and residue specifications to match your detector and method requirements.
Preparing and Standardising Volumetric Solutions
Step-by-step guidance on preparing primary standard solutions and standardising secondary solutions, with worked examples for NaOH and HCl.
GHS Labelling and SDS: What You Need to Know
An overview of the Globally Harmonized System — pictograms, signal words, hazard statements, and how to read a Section 9 SDS for physical properties.
Water Purity Standards for Laboratory Use
Comparing CLSI, ASTM, and ISO water purity grades (Type 1, 2, 3) and their appropriate applications in analytical, cell culture, and general lab use.
Trace Metal Analysis: Acid Purity and Blank Reduction
How to select trace-metal-grade acids, minimise contamination in sample preparation, and achieve sub-ppb detection limits in environmental and biological matrices.
Pharmacopoeial Standards: BP, USP, and EP Explained
Key differences between the British, United States, and European Pharmacopoeias and how to select the appropriate grade for QC and regulatory submissions.
Chemical Grade Reference
Quick reference to common reagent grades and their typical applications.
| Grade | Description |
|---|---|
| ACS Grade | Meets specifications of the American Chemical Society for analytical reagents. |
| HPLC Grade | Low UV absorbance and particulate matter; residue on evaporation <0.0002%. |
| LC-MS Grade | Further reduced ionic and non-volatile residues for mass spectrometry. |
| GC Grade | Extremely low non-volatile residue; trace levels of organic impurities. |
| USP/BP/EP | Meets pharmacopoeial purity tests for pharmaceutical manufacturing and QC. |
| Reagent Grade | High purity; suitable for most laboratory uses where ACS grade is not required. |
| Technical Grade | Commercial purity; not suitable for analytical use. |
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