Frequently Asked Questions

Reference Materials

• How do I get a custom-formulated chemical standard?
  
• Where can I get a Certificate of Analysis or Material Safety Data Sheet for my stock chemical standard?
  
• What does a data pack for a chemical standard include?
  
• What do I do with my empty reusable gas cylinder?
  
• How can I order a custom gas standard?
  
• Why doesn’t the 502.2 MegaMix™ include the gases listed in the method?
  
• Can my gas standard be re-certified?
  
• What regulator should I use with my gas standard?
  
• How can I troubleshoot pressure problems in my gas standard?
  

If your question doesn’t appear on the list, you can contact Restek’s expert chemists.
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