Duplex reference specimen

An alternative and very sensitive test is by means of an alloy with two major Copper/Zinc phases separated by an atomic number difference of 0.1. The light phase illustrated in the micrograph has a mean atomic number of 29.47 and the dark phase a mean atomic number of 29.37.

Updated: 05-03-2026
Code Pack Size Availability Price Updated: 05-03-2026
EMS79521-01 Each No ETA $1,311.00 AUD

* Availability Explanation

X weeks – the estimated lead time, based on the average time taken previously to fill orders from this particular supplier. Lead times are from when we receive your order until when we fill your order. For delivery times, please see shipping information below.

In Stock – Plenty of stock on the shelf, ready to ship.

No ETA – our supplier has advised they cannot provide an accurate ETA. Generally there is some issue with supply, and it may be more than 6 months.