Skip to Main Content
PolyU Library

Find Standards

A guide to introduce resources to find technical standards


  • International Classification for Standards (ICS) codes

is a technical standard published by the International Organization for Standards (ISO) and serves as a structure for catalogues. Many platforms allow browsing/searching standards by ICS codes. Learn more about ICS.

  • Redline

refers to highlighted changes between versions of a standard.

How to open protected PDF documents

The PDF documents downloaded from the platform are protected files. Steps to open these PDF documents are:

  1. Install FileOpen plug-in in your device (PC, Mac, iOS, Android). You only need to install once per device.

  2. Locate the downloaded PDF document in your local folder. Double-click on the PDF document to open it in Adobe Acrobat reader. Please DO NOT open it in a browser.

Techstreet Enterprise

Techstreet Enterprise provides full access to technical standards, conference proceedings, and technical reports. Our current subscription includes ASHRAE, CIE and UL standards.

Searching in Techstreet Enterprise

  1. Search by standard number or keywords

  2. The Most Recent icon helps you identify this document is the latest version.
  3. Click on the PDF icon to download the PDF files
  4. You could view the historical editions of the same standard from the timeline on the left sidebar.

  5. Refer to the steps in the sidebar to learn how to open the protected PDF documents downloaded from this platform.
  1. Leave the search box empty and click on Search

  2. Filter the results from the sidebar, such as Publisher, Publication Year, Document Status, Product Type and Language, etc.