TURB4

Turbidity 4 NTU Calibration Standard - Formazin

certified reference material

• Synonym(s): Formazin Turbidity Calibration Standard (4NTU)
• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 300
• CofA: certificate is enclosed in each package
• manufacturer/tradename: RTC TURB4-100
• concentration: in H₂O
• application(s): environmental
• format: matrix material
• storage temp.: 2-8°C

Description

General description

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Application

This CRM can be used to calibrate and validate all types of laboratory turbidity meters in the 4 Nephelometric Turbidity Unit (NTU).

Features and Benefits

• Gravimetrically prepared standard, verified and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory
• Traceable to the SI and higher order standards from NIST
• Assigned value based on a purity determination by mass balance and gravimetrically prepared value
• Homogeneity assessed in accordance with ISO Guide 35
• Available in 500 mL high-density polyethylene bottle to assure safe delivery
• Accompanied with a certificate of analysis (CoA) having information on the expiry date for an effective audit
• Prepared using deionized water as a solvent

Other Notes

Values of analytes vary lot to lot. Some lots may not contain all analytes.

Safety Information

• Storage Class: 12 - Non Combustible Liquids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable