Available from DCG Partnership 1, Ltd.
DCG Partnership 1, Ltd. is the premier manufacturer of custom blended calibration standards. All of our standards are considered Primary Reference Standards, +/-1% or less gravimetric uncertainty per component at the 99.5% confidence interval. NIST Traceable by weight with the gravimetric values verified by one or more analytical techniques - NIST Certificate #'s: 822/266926-02, 822/272801-06, 822/274081-06. Where applicable, our Reference Standards meets or exceeds the following guidelines: ISO 6142, ISO 6143, GPA 2198, API 220.127.116.11 and API 18.104.22.168.