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HG/T 2409-2023 PDF English

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HG/T 2409-2023: (Determination of isocyanate group content in polyurethane prepolymer)
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HG/T 2409: Historical versions

Std IDVersionUSDBuyDeliver [PDF] inTitle (Description)
HG/T 2409-2023English219 Add to Cart 3 days [Need to translate] (Determination of isocyanate group content in polyurethane prepolymer)
HG/T 2409-1992English199 Add to Cart 2 days [Need to translate] Determination of Isocyanate Group Content in Polyurethane Performed Polymer

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Basic data

Standard ID HG/T 2409-2023 (HG/T2409-2023)
Description (Translated English) (Determination of isocyanate group content in polyurethane prepolymer)
Sector / Industry Chemical Industry Standard (Recommended)
Classification of Chinese Standard G64
Word Count Estimation 10,147
Date of Issue 2023-12-20
Date of Implementation 2024-07-01
Older Standard (superseded by this standard) HG/T 2409-1992
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies two methods for the determination of isocyanate group (NCO) content in polyurethane prepolymers or intermediate products: Method A, di-n-butylamine-anhydrous toluene/hydrochloric acid standard titration solution method; Method B, near-infrared spectroscopy. This standard is applicable to polyurethane prepolymer manufacturers or related parties using the di-n-butylamine-anhydrous toluene/hydrochloric acid standard titration solution method and near-infrared spectroscopy to determine the isocyanate group (NCO) content in the product. It can also be used Relevant units conduct research and quality control on this type of products.

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