SH/T 1157.2-2025 in English
VALIDRubber, raw—Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR) Part 2: Kjeldahl method
- Issued on:2025-04-10
- Implemented on:2025-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
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$204.00
$204.00
| Standard No: | SH/T 1157.2-2025 |
| Document status: | VALID |
| Title in English: | Rubber, raw—Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR) Part 2: Kjeldahl method |
| Title in Chinese: | 生橡胶 丙烯腈-丁二烯橡胶（NBR）中结合丙烯腈含量的测定 第2部分：凯氏定氮法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2025-04-10 |
| Implemented on: | 2025-11-01 |
| ICS Classification: | 83.040.10-Latex and raw rubber |
| Chinese Classification: | G35-Synthetic rubber |
| Professional Classification: | SH-Petrochemical |
| Related Keywords: | bound acrylonitrile content
bound acrylonitrile acrylonitrile content acrylonitrile-butadiene rubber polybutadiene rubber |
Introduction
This standard provides a method for determining the content of bound acrylonitrile in polybutadiene rubber. It specifies the procedures and requirements for the analysis using the Kjeldahl method. The method involves the digestion of the sample with sulfuric acid and catalytic agents, followed by distillation and titration to quantify the nitrogen content. The standard outlines the necessary equipment, reagents, and conditions for accurate and reproducible results. It also includes details on sample preparation and calculation of the acrylonitrile content based on the nitrogen measurement. The procedure is designed to ensure consistency and reliability in the determination of this important property in the material.
*** Please note: This description may not be accurate, please refer to the official documentation.
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