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VeriSpec™ QC Standard 7A
Ricca Chemical1000 ppm K, 500 ppm Si; 100 ppm Al, B, Ba, Na Matrix: 5% HNO3/ tr. HF Min: >= 99.5 Max: = Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facility
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VeriSpec™ QC Standard 7
Ricca Chemical1000 ppm K, 500 ppm Si; 100 ppm Al, B, Ba, Na; 50 ppm Ag Matrix: 5% HNO3 Min: >= 99.5 Max: = Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facility
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