GB/T 7814-2017 in English
VALIDIsopropyl alcohol for industrial use
- Issued on:2017-12-29
- Implemented on:2018-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
《GB/T 7814-2017工业用异丙醇》由TC63（全国化学标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。
Introduction
GB/T 7814—2017 Standard Overview
Industrial Isopropyl Alcohol GB/T 7814—2017 standard is an important basis for regulating the technical requirements, test methods and quality control of this product. It is applicable to isopropyl alcohol produced by processes such as propylene hydration and acetone hydrogenation.
Comparison of Standard Frameworks
| Items | New/revised content of the 2017 version | Differences from the 2008 version |
|---|---|---|
| Relative molecular mass | Adjusted to 60.10 according to the 2016 international relative atomic mass | The original standard was 60.09 |
| Product classification | New Type I (E1, E2) and Type II superior products | Delete density requirements, add appearance and odor requirements |
| Detection method | Optimize the moisture determination method and introduce the Karl Fischer coulometric method | Adjust to arbitration method |
Technical requirements interpretation
Isopropyl alcohol content is the core indicator. Type I products (E1 and E2 grades) require ≥99.9%, Type II superior products require ≥99.9%, and qualified products require ≥99.7%. In addition, the water content is controlled at ≤0.10% (Type I) and ≤0.20% (Type II) to ensure product purity.
Implementation recommendations
Case study: Optimization of water determination
Karl Fischer coulometric method is used as the arbitration method to ensure accurate results. It is recommended that enterprises be equipped with high-precision electronic balances and professional titration equipment to establish standardized laboratory processes.
Technology Evolution Analysis
From GB/T 7814-1987 to GB/T 7814-2008 and then to the current version, the standard has gradually improved the quality control system, increased the detection requirements for trace impurities and trace elements, and reflected the progress of industry technology.
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