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GB/T 22313-2008 Active
GB/T 22313-2008 Plastics—Polyols for use in the production of polyurethan—Determination of water content
Abstract
This standard specifies the method for determining the water content of polyols used as raw materials for polyurethane. Method A is a manual electrochemical method based on the Karl Fischer principle. The electrochemical method is used for most polyols, including colored polyols where the endpoint is not easily observable. Method B includes an automatic electrochemical method and an automatic coulometric method. The coulometric method is an absolute method that does not require calibration and is more sensitive than the electrochemical method.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 22313-2008 |
| CCS | Basic standards and general methods for synthetic resins and plastics |
| ICS | Thermosetting plastics |
| Implement Date | 2009-04-01 |
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