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ISO 4901:1985

Reinforced plastics based on unsaturated polyester resins — Determination of residual styrene monomer content

Standard Details

The residual styrene monomer content in reinforced plastics based on unsaturated polyester (UP) resins is an important criterion in evaluating the degree of cure of UP resins in the polymerized state. The determination is carried out by extraction of the residual monomer styrene from the UP resin in the polymerized state using dichloromethane and subsequent gaschromatographic analysis of the extract with n-butyl-benzene as internal standard. An alternative method of determining the residual styrene monomer by the Wijs method is also specified.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 4901:1985
Document Year: 1985
Pages: 5
Edition: 1
  • ICS:
  • 83.120 Reinforced plastics

Life Cycle

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WITHDRAWN
ISO 4901:1985
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