Skip to Content
Merck
All Photos(1)

Key Documents

TURB4

Supelco

Turbidity 4 NTU Calibration Standard - Formazin

certified reference material

Synonym(s):

Formazin Turbidity Calibration Standard (4NTU)

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

UNSPSC Code:
41116107
NACRES:
NA.24

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

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.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Customer Support.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service