Calibrate with confidence - every time
1.3 µs/cm Single-Use Conductivity Standard
5 µs/cm Single-Use Conductivity Standard
10 µs/cm Single-Use Conductivity Standard
25 µs/cm Single-Use Conductivity Standard
100 µs/cm Single-Use Conductivity Standard
146.93 µs/cm Single-Use Conductivity Standard
500 µs/cm Single-Use Conductivity Standard
1000 µs/cm Single-Use Conductivity Standard
Altus Science manufactures single-use, low-level conductivity standards designed for precise water and solution testing across pharmaceutical and life science environments.
Each standard is ISO 17034 and ISO 17025 accredited, providing certified reference materials (CRMs) that ensure measurement accuracy as well as USP <645> and EP 2.2.38 compliance.
Shop nowTraditional multi-use bottles risk contamination and measurement drift. Once opened, exposure to air introduces CO₂, which changes conductivity-especially when containers are only partially used and re-stored.
Minimise exposure to air and contamination
Maintain solution integrity until the moment of use
Compatible with magnetic stirrers for easy mixing and handling
Precision at the lowest levels
We manufacture low-level verification standards-starting at just 1.3 µS/cm-to verify sensor performance where it matters most: close to the true conductivity of PW, UPW, or WFI.
Our low-level conductivity standards are:
Available in a range of container sizes, including single-use 30 mL bottles
Produced in an aqueous matrix that matches pharmaceutical water, reducing matrix errors
Fully traceable to NIST and supplied with individual ISO 17034 and ISO 17025 accredited Certificates of Analysis
The Benchmark for Water Testing
Conductivity is a critical parameter for monitoring Ultrapure Water (UPW) and Water for Injection (WFI) in the pharmaceutical and life science industries.
At Altus Science, our independence and rigorous Quality Management System mean we deliver unbiased, aqueous NIST-traceable conductivity standards of the highest quality.
No matter which meter you use, our CRMs provide a reliable benchmark for instrument performance.
Shop NowMeeting Global Pharmacopoeia Standards
Altus Science standards are fully compliant with USP <645>, EP 2.2.38, and all other major pharmacopoeias.
Every Altus Science conductivity standard is NIST-traceable and manufactured under ISO 17034 and ISO 17025 accreditation, ensuring complete confidence in the precision and compliance of your results.
Alongside our low-level conductivity standards, we provide the technical expertise to help you achieve and maintain compliance-no matter which analyser or meter you use.
Shop NowOur conductivity standards are accredited to ISO 17025 and ISO 17034, ensuring accuracy, traceability, and compliance with international quality requirements for pharmaceutical water testing.
Our CRMs are supplied in convenient 30ml single-use bottles in volumes ideal for routine testing, reducing waste and improving laboratory efficiency.
Yes. All low-level conductivity CRMs are specifically designed to meet USP <645> conductivity testing requirements for pharmaceutical waters, ensuring regulatory compliance.
Yes. Every CRM is shipped with a full CoA documenting batch number, expiry date, SI traceability, and accreditation details, essential for audit readiness.
Store at room temperature and away from direct sunlight. Our single-use bottles remain stable until opened, minimizing contamination risks and simplifying handling.
Yes. Our conductivity standards are manufactured and tested to comply with USP, EP, and JP pharmacopoeia requirements, ensuring global regulatory alignment.
Yes. We supply globally using secure, validated logistics to maintain product integrity and ensure fast delivery.
Yes. Our standards are universally compatible and validated for use with all machines.
Shelf life varies by product, but every conductivity standard includes a certificate of analysis (CoA) with expiry date, batch number, and traceability information.
Yes. Altus Science CRMs are fully traceable to NIST.