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Purchasing Services


Airgas Cylinder Rental Invoices

Due to the increased volume of invoices and cylinder rentals, Airgas is requesting end-users to pay for their cylinder rental invoices by P-Card, effective immediately on all new invoices. Click here to setup automatic P-Card payments for your cylinder rental invoices.  Purchasing Services plans to come and meet with all Divisions/Departments who currently order Airgas, to assist in setting up this process.  If you have further questions, please feel free to contact Genelle Vinci x6276,

Market Research Training

Purchasing Non-Competitive Justification-Market Research Training Tools click here. For upcoming classes click here

Thorlabs New Lab Discount Form

New Caltech labs are eligible for a 10% discount with Thorlabs for the first year!
For more information, please click here.


All of our new punchout suppliers have FAQ's on how to use their punchouts:

JAGGAER Mobile App for TechMart is Now Available!

This means you can download the app (iPhone or Android), and approve Requisitions right from your mobile device. For further information, please click here.

For Airgas Customers...Effective August 29, 2016

  • Please click here for information on How to Order Compressed Gas

  • Please click here for information on How to Order Specialty Gas (Gas not available on the AirGas Punch-Out)

California Partial Sales and Use Tax (1525.4) Exemption

For more information please click here.

 Locate your Purchasing Services Representative for assistance

Monica Marquez
Associate Director of Purchasing Services
(626) 395-2566