GB/T 33424-2016 in English
VALIDSolvent dyes--Determination of shade and relative strength
- Issued on:2016-12-30
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 33424-2016溶剂染料 色光和强度的测定》由TC134（全国染料标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。
Introduction
Introduction and Standard Background
GB/T 33424-2016 "Determination of color and intensity of solvent dyes" is an important national standard for the solvent dye industry, which aims to standardize the color evaluation and intensity test methods of solvent dyes.
Comparison of standard frameworks
| Standard dimensions | GB/T 33424-2016 | GB / T6 6 8 8—2 0 0 8 | GB / T2 3 7 4—2 0 0 7 |
|---|---|---|---|
| Measurement objects | Solvent dyes | Relative intensity and color difference | General conditions for dyeing determination |
| Measurement method | Visual evaluation and instrumental determination | Colorimeter | General dyeing conditions |
Specifications of reagents and materials
According to the standard, the following reagents and materials are mainly involved:
- Resin: Select PS, ABS, PC, PETP and other types.
- Zinc stearate: Industrial product, the dosage is 0.1% of the resin.
Test methods and instrument requirements
The standard stipulates two measurement methods: visual evaluation and instrumental measurement. The main instruments include:
- Colorimeter: Meets the requirements of GB/T6688-2008.
- Laboratory injection molding machine: Used to prepare color plates.
Result Analysis and Evaluation
The test results include indicators such as color light and intensity. The standard stipulates the use of CMC (2:1) color difference formula for calculation to ensure the accuracy of the data.
Implementation Suggestions
To ensure the effective implementation of the standard, it is recommended that:
- Strictly control the test conditions, including resin type and dye dosage.
- Regularly calibrate the instruments to ensure measurement accuracy.
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