Analytical standards

To maintain constant good measurement results, a regular review of the accuracy of the spectrophotometer is required. With the use of certified reference materials from Hellma Analytics, you make sure that your equipment qualifications meet the requirements of the pharmacopoeias and fulfill your internal quality requirements, at the same time you reach the international comparability of your measurement results. The certified reference materials (calibration standards) of the DIN EN ISO 17025 accredited Hellma Analytics calibration laboratory are traceable to the primary standards of NIST (National Institute of Standards and Technology) and meet the requirements of the major pharmacopoeias (e.g. EP, DAB, USP).
Your benefits:

• High quality of the measurement results
• International comparability of measurement results
• Meeting the requirements of the major pharmacopoeias (EP, DAB, USP)
• Results traceable to NIST primary standards
• 30 years warranty on the reference materials

• Certified reference materials (Calibration Standards) in quality storage box
• DAkkS Calibration Certificate (DIN 17025)
• Handling guidelines

Values stated at 25°C. Supplied in containers as indicated. Accuracy ± 2%.

Microsart^® Validation Standards are quantified CFU preparations, containing 10 CFU per vial, optimized for validating NAT based tests.

Calibration standards ensure measurement accuracy. TISAB (Total Ionic Strength Adjustment Buffer) solutions are used to adjust the ionic strength for fluoride measurements.

Standard solutions acc. to DIN 19266 for calibration in pH measurement. Buffer solutions in the double-end ampoules offer a particularly high degree of reliability and measuring accuracy.

• Hot steam sterilised, very long shelf life
• Without preservatives
• With manufacturer certificate
• 20 ml ampoules with approx. 17 ml content

All values quoted are potentials of Platinum Electrode v Ag/AgCl reference (3M KCl) at 25 °C.
Bottles of 500 ml.

Certified stabilized Sucrose (Brix) Standards.

• ISO 17025 accredited
• Uncertainty of measurement of 0.11 % for all Brix values at 20 °C
• Equivalent Nominal Refractive Index values from ICUMSA published tables reported on Certificate of Analysis
• Compatible with any brand of Refractometer
• 12 month shelf life
• Provided in high quality HDPE 15 ml dropper bottles

Identified by colour-coded labels. Tolerance ±0.03 pH.

Under ISO 9000 Quality protocols, all meters used in production and testing processes must be periodically recalibrated using nationally-treaceable standards. Thermo offers these in different qualities. Other test liquids are available on request.