GB/T 27841-2011
ActiveChemical products for industrial use--Determination of hydrosolubility of solids and liquids with high solubility--Flask method
工业用化学品 具有高溶解性的固体和液体水溶性测定 烧瓶法
Catalogue
前言 → 引言 → 1 范围 → 2 规范性引用文件 → 3 术语和定义 → 4 原理 → 5 试剂 → 6 试验仪器和设备 → 7 试验过程 → 8 结果表述 → 9 试验报告 Foreword → Introduction → 1 Scope → 2 Normative References → 3 Terms and Definitions → 4 Principle → 5 Reagents → 6 Apparatus and Equipment → 7 Test Procedure → 8 Expression of Results → 9 Test Report
Scope
This standard specifies the method for determining the hydrosolubility of chemical products for industrial use (hereinafter referred to as products) using the flask method. This standard is applicable to essentially pure substances that are stable in water and have high solubility (greater than 101 g/L). This standard is not applicable to impure products (e.g., certain surfactants), unstable products, and products that are unstable in water; the presence of impurities in the test substance will greatly affect the determination result of the hydrosolubility of the substance; it is also not applicable to essentially pure substances that are stable in water but have low solubility (less than 101 g/L).
本标准规定了利用烧瓶法测定工业用化学品(以下简称产品)水溶性的方法。本标准适用于水中稳定性良好且溶解性较高(大于101 g/L)的基本纯净物质。本标准不适用于不纯的产品(例如某些表面活性剂)、不稳定的产品和在水中不稳定的产品，测试物中杂质的存在将很大程度上影响该物质的水溶性测定结果；不适用于水中稳定性良好但溶解性较低(小于101 g/L)的基本纯净物质。
Normative References
Keywords
Application Summary AI generated
Technicians in the chemical industry, inspection and quarantine agencies, and research institutions use this standard to determine the water solubility of highly soluble solid or liquid chemicals. It provides a standardized test procedure using the flask method, ensuring comparability of results across different laboratories. This standard is crucial for chemical safety assessment, environmental risk management, and product classification.
化学工业、检验检疫机构以及科研单位的技术人员使用本标准，用于测定高溶解性固体或液体化学品的水溶性。该标准通过烧瓶法提供标准化的测试流程，确保不同实验室之间结果的可比性。它对于化学品安全评估、环境风险管理和产品分类至关重要。
AI Summary AI generated
GB/T 27841-2011 specifies a flask method for determining the water solubility of industrial chemicals with high solubility (>101 g/L). It applies to pure solids or liquids stable in water, excluding low-solubility or unstable substances. The test involves dissolving the sample at 30°C, cooling to 20°C with stirring, centrifuging, and analyzing the saturated solution concentration. Results are expressed as the average of three parallel determinations, with repeatability requiring that the difference between two results not exceed 15% of the mean. This standard is equivalent to NF T20-046:1985 and is under the jurisdiction of SAC/TC 251.
GB/T 27841-2011规定了用烧瓶法测定高溶解性（>101 g/L）工业化学品水溶性的方法。标准适用于水中稳定且纯度高的固体或液体，不适用于低溶解性或不稳定物质。测试过程包括在30℃溶解样品、冷却至20℃恒温搅拌、离心分离后分析饱和溶液浓度。结果以三个平行样的平均值表示，重复性要求两次测定差值不超过平均值的15%。该标准等效采用NF T20-046:1985，由全国危险化学品管理标准化技术委员会归口。
Key Sentences extracted from text
本标准规定了利用烧瓶法测定工业用化学品(以下简称产品)水溶性的方法。
本标准适用于水中稳定性良好且溶解性较高(大于101 g/L)的基本纯净物质。
在略高于测定温度的条件下，将产品溶解在水中直至达到饱和状态。
试验温度20℃±0.5℃。
由同一个分析人员，使用相同的仪器设备，对同一样品进行的同步或连续完成的两次测定，所得结果之间的最大差值不可超过平均值的15%。
This standard specifies the method for determining the hydrosolubility of chemical products for industrial use (hereinafter referred to as products) using the flask method.
This standard is applicable to essentially pure substances that are stable in water and have high solubility (greater than 101 g/L).
At a temperature slightly higher than the determination temperature, dissolve the product in water until saturation is reached.
The test temperature is 20°C ± 0.5°C.
For two determinations performed simultaneously or consecutively on the same sample by the same analyst using the same equipment, the maximum difference between the results shall not exceed 15% of the average value.