Certified Reference Materials Suppliers

QUICK, RELIABLE SERVICE FOR ALL YOUR REFERENCE MATERIAL NEDDS

BROWSE OUR RANGE

GBJ is a long-standing and trusted supplier of high-quality Standards and Certified Reference Materials (CRMs), supporting a wide range of analytical applications. All of our products are certified to ISO 17034 and ISO 17025, ensuring the highest levels of accuracy, traceability, and reliability.
At GBJ, we don’t just supply products — we go the extra mile to ensure you receive exactly what you need, when you need it. Explore our product ranges below to see how we can support your laboratory with confidence.

Our Solutions

Custom Standard

The new cost-effective way to run your lab. With short lead times, our matrix matched Solutions are competitively priced and come ready to use!

Stock Standard

Want next day delivery? Explore our Stock standard range here!

Products We Serve

Acid

ARO Scientific

Environmental CRM’s

ICP Standards

Process Water Consumables

Pump Tubing

Pure Raw Materials

Metallurgical CRM's

Why Choose gbj

Internationally Accepted CRMs from trusted global brands

Accurate, traceable standards for regulated industries

Efficient import, handling & delivery across across the Asia-Pacific Region

Decades of industry expertise & customer support tailored to laboratory needs

Dedicated technical support to help you select the right CRMs and documentation for your laboratory needs

Latest Updates

Ensure Accurate Water Testing with ERA...

In today’s regulatory and quality-centric world, precision in analytical water testing is non-negotiable. Whether you’re a municipal laboratory, industrial facility, or environmental consultancy, data accuracy isn’t just a best practice — it’s a regulatory requirement. That’s where ERA Life Sciences...

Conquering High Total Dissolved Solids (TDS)...

Mining laboratories operate in one of the most demanding analytical environments. Ore digests, heap leach solutions, process waters, and tailings extracts rarely resemble clean, low-matrix calibration solutions. Instead, they often contain high acid strength and elevated total dissolved solids (TDS)...