VHG has been manufacturing single and multi-element standards (both aqueous and oil-based) for more than 30 years. Should we not have a stock product to suit your needs, we specialize in custom blends to meet your lab’s unique testing requirements All VHG products are manufactured in our state-of-the-art manufacturing facility certified to ISO 9001 and accredited to ISO 17034. They then must pass rigorous quality control in our laboratory accredited to ISO/IEC 17025. Our key product categories include: • Petroleum standards for analysis by ICP, ICP-MS, XRF, RDE, UVF, physical testing instruments and other oil analysis instruments • Analytical reference standards for both new and in-service oil applications • Aqueous inorganic certified reference materials and calibration standards • Standards for ASTM, DIN, IP, ISO, JIS and ANFOR methods, including EPA Tier 3 methods • Our web-based, immediate feedback proficiency testing program for oil analysis, accredited to ISO/IEC 17043 • Instrument consumables including torches, tubing, beakers, XRF cups, and more • Custom mixtures To help you achieve greater analytical certainty VHG goes beyond the standard, supporting you with verification against NIST SRMs for reference standard purity (where available) and a comprehensive Certificate of Analysis with actual concentrations.