Certified standards /
Reference materials |
- Spex CertiPrep
Spex is a company dedicated to the preparation of samples and materials of reference which has more than 50 years of experience in the sector. Among its instrumentation we stand out several mills, appropriate for each need. It also has a wide range of certified standards, highly recognized in the market.
http://www.spexcsp.com
Descargar Spex Organic Standards (PDF - 4,5Mb)
Descargar Spex Inorganic Standards (PDF - 4,7Mb)
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