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Path: Home > HG/T > Page54 > HG/T 2709-2022 || Home > Standard_List > HG/T > Page54 > HG/T 2709-2022

HG/T 2709-2022 PDF English

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US$349.00 ยท In stock
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HG/T 2709-2022: (Plastics - Determination of the hydroxyl value of polyester polyols used in the production of polyurethanes)
Status: Valid

HG/T 2709: Evolution and historical versions

Std IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)Status
HG/T 2709-2022English349 Add to Cart 3 days [Need to translate] (Plastics - Determination of the hydroxyl value of polyester polyols used in the production of polyurethanes) Valid
HG/T 2709-1995English169 Add to Cart 2 days [Need to translate] (Determination of the polyester polyol hydroxyl value) Obsolete

Standard similar to HG/T 2709-2022

QB/T 2080 | QB/T 2957 | HG/T 2624 | HG/T 6394 | HG/T 6385 | HG/T 2704 |

Basic data

Standard ID HG/T 2709-2022 (HG/T2709-2022)
Description (Translated English) (Plastics - Determination of the hydroxyl value of polyester polyols used in the production of polyurethanes)
Sector / Industry Chemical Industry Standard (Recommended)
Classification of Chinese Standard G32
Word Count Estimation 15,164
Date of Issue 2022-09-30
Date of Implementation 2023-04-01
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies four methods for the determination of the hydroxyl value of polyester polyols used in the production of polyurethane. Method A: Acetic anhydride-pyridine method. Method B: Acetic anhydride-perchloric acid-ethyl acetate catalyzed acylation method. Method C
HG/T 2709-2022 English cover page

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