Key Benefits
- Audit-ready traceability — NIST-traceable with certificates of analysis for every batch
- Extended shelf life — stabilised formulation in sealed ampoules for longer usable life
- Five-point calibration — concentration levels spanning 0.1–50 mg/L cover the full compliance range
- Zero cross-contamination risk — individual sealed ampoules opened fresh for each calibration
Overview
Certified cyanide calibration standards for accurate instrument calibration and quality control. Each set includes five concentration levels traceable to NIST standards, with certificates of analysis for audit compliance.
The stabilised formulation provides extended shelf life, while individual sealed ampoules prevent cross-contamination and ensure consistent performance.
Key Features
- Five concentration levels (0.1, 1.0, 5.0, 10, 50 mg/L)
- NIST-traceable with certificates of analysis
- Stabilised formulation for extended shelf life
- Individual sealed ampoules prevent contamination
- Suitable for calibration and QC checks
- Meets ISO 17025 traceability requirements
Typical Applications
- Instrument calibration
- Quality control verification
- Method validation
- Proficiency testing preparation
- Audit documentation
Specifications
| Concentrations | 0.1, 1.0, 5.0, 10, 50 mg/L |
|---|---|
| Volume | 100 mL per standard |
| Uncertainty | ±1% (k=2) |
| Traceability | NIST SRM |
| Shelf Life | 24 months |
| Storage | Refrigerate (2-8 deg C) |
| Certificate | Included per lot |
Frequently Asked Questions
How should I store the calibration standards?
Store refrigerated at 2-8 deg C. Keep ampoules sealed until use. Once opened, standards should be used within the timeframe specified on the certificate of analysis.
Are the standards accredited?
Yes, our calibration standards are produced under ISO 17025 accredited processes with full traceability to NIST Standard Reference Materials.
Can I order custom concentrations?
Yes, custom concentration standards can be prepared on request. Contact Walker Scientific for pricing and lead times.
How often should I recalibrate?
We recommend daily calibration verification using the mid-range standard (5.0 mg/L) and full multi-point calibration weekly or when reagent lots are changed.