zerosigma

Regulatory Compliance

Regulatory Compliance

Pipette Calibration by Zerosigma adheres to various international standards. National and International standards adhered to while carrying out performance verification and scheduled maintenance of pipettes. DIN 12650 The standard committee for laboratory devices and equipment (Deutscitesinstitut fur Normung: DIN). This is the latest draft (4th Standard proposal, 1996-07) and is sub divided in to specific sections

  • DIN 12650-1: General Requirements
  • DIN 12650-2: Piston-Stroke pipettes
  • DIN 12650-3: Dispensers
  • DIN 12650-4: Diluters
  • DIN 12650-5: Piston Burettes
  • DIN 12650-6: Gravimetric testing for measuring accuracy
  • DIN 12650-7: Non-Gravimetric methods
  • DIN 12650-8: Multi channel pipettes
  • ASTM E1154-89 This specification covers requirements operating conditions, and test methods for piston or plunger operated volumetric apparatus.
  • ISO/8655 International standard, 2002
  • ISO/8655-1: Piston Operated volumetric instruments- Part 1: Terminology, general requirements and user recommendations
  • ISO/8655-2: Piston operated volumetric instruments- Part 2: Piston pipettes
  • ISO/8655-3: Piston operated volumetric instruments: Part 3: Piston burettes
  • ISO/8655-4: Piston operated volumetric instruments: Part 4: Diluters
  • ISO/8655-5: Piston operated volumetric instruments: Part 5: Dispensers
  • ISO/8655-6: Piston operated volumetric instruments: Part 6: Gravimetric test methods
  • ISO ISO/8655-7: Piston-operated volumetric apparatus: Part 7: Non-gravimetric methods for the assessment of equipment performance
  • ISO 3696 Water for analytical laboratory use Specification and test methods
  • ASTM E1154-14: 2014This specification covers requirements, operating conditions, and test methods for piston or plunger operated volumetric apparatus. (POVA)
  • ISO/IEC 17025: 2017-11: General requirements for the competence of testing and calibration laboratories (clause 7.8.4.1d, clauses 7.1.3, 7.2.1.4)
  • ISO/TR 20461: Determination of uncertainity for volume measurement made using the gravimetric .

Uncertainity is calculated using a coverage factor of k=2 (k=2 defines an interval having a level of confidence of approximately 95 percent) The uncertainity associated with the measurement is not included in determining inaccuracy Pass/Fail Results.