T/JSSES 14-2021 in English
VALIDRegenerated stripping liquid for display device manufacturing industry use
- Issued on:2021-06-23
- Implemented on:-
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
本文件规定了剥离液再生液（以二甲基乙酰胺、N-甲基甲酰胺、二乙二醇丁醚、N-甲基吡咯烷酮、乙醇胺中一种或多种为主要成分)的要求、试验方法、检测规则、标志、包装、运输、贮存的要求。
本文件适用于采用显示器件制造行业产生的含剥离液（以二甲基乙酰胺、N-甲基甲酰胺、二乙二醇丁醚、N-甲基吡咯烷酮、乙醇胺中一种或多种为主要成分)工业废弃物为原料，经蒸馏、精馏等综合处理后所得的剥离液再生液。
本文件产品仅适用于显示器件制造行业。
Introduction
Analysis of the core content of the standard
| Items | Aqueous regeneration liquid | Non-aqueous regeneration liquid |
|---|---|---|
| Effective component content | Grade I ≥99% | Grade I ≥99% |
| Water content | ≤3%(Grade I) | ≤0.1%(Grade I) |
| Metal content | ≤25μg/kg(Grade I) | ≤25μg/kg(Grade I) |
In-depth interpretation of technical indicators
The standard divides regeneration liquid into two categories: aqueous and non-aqueous, and sets three levels of quality indicators for each:
- Grade I: Suitable for high-end display panel manufacturing, with strict control of metal impurities (≤25ppb)
- Grade II: 50ppb metal content is allowed, which meets the production of ordinary display screens
- Grade III: Used in scenarios with lower purity requirements
Key points of detection method
When using the gas chromatography internal standard method to determine the effective components, please note:
- When using the FID detector, the carrier gas flow rate should be stable at 1.0mL/min
- The retention time of dimethylacetamide needs to be calibrated to ±0.1min
- The absolute difference allowed for parallel determination is ≤0.1%
Implementation suggestions
Manufacturers should pay special attention to the following:
- Establish ICP-MS detection capability for metal content
- Use a distillation system with nitrogen protection to prevent component oxidation
- Transportation and storage must comply with GB190 dangerous goods regulations
Innovative value of the standard
This standard systematically regulates the regeneration process of stripping fluids in the display industry for the first time, and its features include:
- Covering the regeneration standards of 5 mainstream solvents (DMAc/NMF, etc.)
- Setting control limits for 26 metal elements
- Introducing the GB/T27611 recycled product identification requirements
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