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Trace Elements in Water
Trace Elements in Water
Price: $687.00
Unit of Issue: 250 mL
Unit Description: A unit of SRM 1643f consists of approximately 250 mL of acidified water in a polyethylene bottle, which is sealed in an aluminized plastic bag to maintain stability. SRM 1643f simulates the elemental composition of fresh water. The solution contains nitric acid at a volume fraction of approximately 2 %, equivalent to an amount of substance concentration (molarity) of approximately 0.32 mol/L.
Product Expiration Date: 01 August 2027
Certificate/Report
Revision History:
28 April 2025 (Changed period of validity; editorial changes).
Certificates of previous issues of this material are available here.
NIST Storage Temperature: Ambient
Please see certificate for user storage information regarding this material.
Safety Information
Table(s) of Related Materials Metal Constituents in Natural Matrices
Hazard Class: This material is considered hazardous under DOT: Hazard Class 8, Corrosive
Perishable Types: Non-Perishable
For technical questions regarding this material, please contact Molloy, John L. or SRMs@nist.gov.
For sales inquiry, please contact SRMInfo@nist.gov.