GB/T 27594-2011
AbolishedDisperse dyestuffs--Determination of relative strength of presscakes--Spectrophotometer method
分散染料 原染料相对强度的测定 分光光度法
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 原理 → 4 仪器和设备 → 5 试剂和材料 → 6 测定方法 → 7 试验报告 Foreword → 1 Scope → 2 Normative References → 3 Principle → 4 Apparatus and Equipment → 5 Reagents and Materials → 6 Determination Method → 7 Test Report
Scope
This standard specifies the general method for the determination of relative strength of disperse dyestuff presscakes by spectrophotometer method. This standard is applicable to the determination of relative strength of disperse dyestuff presscakes that comply with Beer's law.
本标准规定了分光光度法测定分散染料原染料相对强度的通用方法。本标准适用于符合比耳定律的分散染料原染料相对强度的测定。
Normative References
Keywords
Application Summary AI generated
Dye manufacturers and quality testing laboratories use this standard to determine the relative strength of disperse dyestuff presscakes. By employing a spectrophotometric method, it enables accurate assessment of strength variations between batches, ensuring consistent product quality. This standard is crucial for quality control and product uniformity in the dye industry.
染料生产企业和质量检测机构使用该标准来测定分散染料原染料的相对强度。通过分光光度法，可以准确评估染料批次间的强度差异，确保产品质量稳定。该标准对于染料行业的质量控制和产品一致性至关重要。
AI Summary AI generated
This standard specifies a general spectrophotometric method for determining the relative strength of disperse dyestuff presscakes, applicable to samples that obey Beer's law. The principle involves dissolving the sample and standard in a solvent, measuring absorbance at the maximum absorption wavelength, and calculating relative strength using the Lambert-Beer law. The standard details procedures for solid content determination, solution preparation, apparatus, reagents, and calculations, requiring that the difference between two parallel results not exceed 5 points.
本标准规定了用分光光度法测定分散染料原染料相对强度的通用方法，适用于符合比耳定律的样品。原理是将样品和标准品用溶剂溶解后，在最大吸收波长处测定吸光度，根据朗伯-比尔定律计算相对强度。标准详细描述了含固量测定、溶液制备、仪器设备、试剂材料及计算步骤，要求两次平行测定结果之差不超过5分。
Key Sentences extracted from text
本标准规定了分光光度法测定分散染料原染料相对强度的通用方法。
将分散染料原染料和标准样品用特定溶剂溶解后，用分光光度计分别测定其最大吸收波长处的吸光度值。
根据朗勃一比耳定律，即可计算出原染料的相对强度。
含固量以质量分数w计，数值用(％)表示，按式(1)计算。
两次平行测定的结果之差不大于5分，取其算术平均值作为测定结果。
This standard specifies the general method for the determination of relative strength of disperse dyestuff presscakes by spectrophotometer method.
After dissolving the disperse dyestuff presscake and the standard sample with a specific solvent, measure the absorbance values at the maximum absorption wavelength using a spectrophotometer.
According to the Lambert-Beer law, the relative strength of the presscake can be calculated.
The solid content is expressed as mass fraction w, with the value in (%), calculated according to formula (1).
The difference between two parallel determination results shall not be greater than 5 points, and the arithmetic mean shall be taken as the determination result.