Are there Silica standard solutions available for checking the accuracy of a Hach silica method?

Document ID

Document ID TE786

Version

Version 2.0

Status

Status Published

Published Date

Published Date 27/05/2017
Question
Are there Silica standard solutions available for checking the accuracy of a Hach silica method?
Summary
Standards for silica
Answer
Yes, Hach has several different standard solutions available. Please see below.

-Silica Standard Solution, 0.5 mg/L as SiO2, (NIST), 3.78 L 2100817
-Silica Standard Solution, 1 mg/L as SiO2 (NIST), 500 mL 110649
-Silica Standard Solution, 10 mg/L as SiO2 (NIST), 500 mL 140349
-Silica Standard Solution, 25 mg/L as SiO2 (NIST), 236 mL 2122531
-Silica Standard Solution, 50 mg/L as SiO2 (NIST), 200 mL 111729
-Silica Standard Solution, 1,000 mg/L as SiO2 (NIST), 500 mL 19449