GB/T 34666.2-2017 in English
VALIDTechnical specification for compilation for water quality criteria date―Part 2:Aquatic toxicity
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 5 business days
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《GB/T 34666.2-2017水质基准数据整编技术规范 第2部分：水生生物毒性》由TC207（全国环境管理标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
| Data module | Number of required items | Critical control points |
|---|---|---|
| Chemical substance information | 5 items | CAS number, purity value, dosage form specification |
| Experimental biological information | 4 items | Latin name, biological taxonomy level |
| Experimental result information | 4 items | Effect concentration, toxicity endpoint type |
Technological evolution and implementation points
Data quality control innovation
The standard introduces a triple inspection mechanism (self-inspection/mutual inspection/special inspection) for the first time, which is implemented through a computer program:
- Automatic field width verification (such as pH value ≤14)
- Standardization of enumeration values (refer to ECOTOX coding table)
- Threshold limit (purity value ≤100%)
Typical application case
In the study of heavy metal pollution, it is necessary to record according to the standard:
- Copper sulfate pentahydrate (CAS:7758-99-8) as the test substance
- 96h-LC50 value of crucian carp (Carassius auratus)
- Hardness of the experimental matrix (120.53±0.96 mg/L CaCO3)
Implementation recommendations
| Common problems | Solutions |
|---|---|
| Recording of mixed toxicity data | Split into separate records according to Article 6.1(d) of the standard |
| Inconsistent concentration units | Mandatory conversion to μg/L (aqueous phase) or mg/kg (organism) |
Sample only — not a preview of GB/T 34666.2-2017
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