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VeriSpec™ Instrument Calibration Standard 4
Ricca Chemical5000 ppm: Ca, K, Mg, Na Matrix: 5% HNO3 Min: >= 4975 Max: = Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facility
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VeriSpec™ Multi-Element Standard 4
Ricca Chemical5000 ppm: Ca, K, Mg, Na Matrix: 5% HNO3 Min: >= 4975 Max: = Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facility
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VeriSpec™ Multi-Element Environmental Standard 4
Ricca Chemical1000 ppm: Ca, K, Mg, Na Matrix: 5% HNO3 Min: >= 995 Max: = Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facility
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