VHG was founded in 1981 as an independent analytical testing laboratory. In 1984, VHG expanded its operation to include the commercial manufacture of high-purity single and multi-element calibration standards for spectroscopic instrumentation.

En 1989 se funda el conjunto de gaita zuliana VENEZUELA HABLA GAITEANDO (VHG) y en su primera producción logran un éxito rotundo al colocar hasta seis temas en el tope de la popularidad.

VHG Aqueous Inorganic Certified Reference Materials (CRMs) & Calibration Standards

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From fuels and lubricants to oil condition monitoring and aqueous inorganics, we provide high-quality, reliable reference standards across a swathe of indust...

VHG has manufactured single and multi-element standards (both aqueous and oil-based) for more than 30 years, including petroleum standards, analytical reference standards for new and in-service oil applications, and standards for ASTM, DIN, IP, ISO, JIS and ANFOR methods, including EPA Tier 3.

2019年6月18日 · Thorlabs' Volume-Holographic-Grating- (VHG) Stabilized Laser is a laser diode that uses feedback from a volume holographic grating to provide narrow-linewidth, single-frequency operation. This allows this laser to achieve 10 MHz typical linewidths with an excellent side mode suppression ratio (40 dB typical).

Investment. We have a knack for identifying opportunities and managing investments intelligently. Our debt and equity division assists with capital markets, deal sourcing, investor relations, and asset management.

Koninklijke VHG Dé branchevereniging voor ondernemers in het groen zoals hoveniers, groenvoorzieners, interieurbeplanters, dak- en gevelbegroeners & boomspecialisten.

MAKING PEOPLE BETTER. Vita Health Group celebrates life. Improving lives physically and mentally drives everything we do. We work in partnership with the NHS to provide mental and physical health services, work with the UK’s largest companies to help support their workforce and provide a full range of physiotherapy services to private customers.