Guildline’s Standards

We are pleased to announce a generous sponsorship gift to our project from Guildline Instruments—a package of IAPSO Standard Seawater! We will use it in future expeditions to ensure the quality control of salinity determination with our CTD measuring system, using control samples measured by the onboard Micro-salinometer MS-310. IAPSO Standard Seawater is crucial for calibrating salinometers and is an internationally recognized standard in oceanography for determining practical salinity. Guildline proudly serves as its distributor in the Americas.

Moreover, Guildline is the manufacturer of Autosal and Portasal salinometers—renowned for being the most accurate salinometers in the world. During our visit to Guildline, we had the pleasure of meeting our former colleague Metrologist Kai Malorny and the company’s President Richard Timmons. Richard graciously gave us a tour, showing us both the production and service facilities, as well as sharing the latest developments. It was fascinating to see one of the first potentiometers, developed by T.M. Dauphinee more than 70 years ago, on display in the company museum. This development laid the foundation for the Autosal salinometer, invented and created by Dauphinee in 1973 and still produced with some modifications by Guildline as the industrial standard in oceanographic salinometry. Today, Autosal’s prototype is even featured in the Canada Science and Technology Museum!

This visit was particularly meaningful for me, as it marked the start of my Canadian career 22 years ago. I was delighted to witness Guildline’s steady development, maintaining its reputation over 60 impressive years! To commemorate our meeting, Richard presented us with a bottle of his signature Timmons Estate Port, made by him using a unique process. I’m confident that the “presidential” standard of winemaking will pair beautifully with the standard seawater!

Cheers to the highest standards of Guildline!

With Richard Timmons in the Guildline’s museum
Dauphinee potentiometer ca.1950s
On the production floor with a new Autosal in assembly
Timmons Estate Port vintage 2020