GB18420.1-2009
Biological toxicity for pollutants from marine petroleum exploration and exploitation - Part 1: Grading
海洋石油勘探开发污染物生物毒性 第1部分：分级
GB 18420.1-2009 is a current mandatory Chinese national standard for Biological toxicity for pollutants from marine petroleum exploration and exploitation - Part 1: Grading. It appears in the Chemicals compliance cluster with a product safety focus and has an implementation date of Nov 1, 2009.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to the biological toxicity grading of pollutants used or generated during marine petroleum exploration and exploitation operations and subsequently discharged into the sea. It specifically covers drilling fluids, base fluids, drill cuttings, and produced water. It is mandatory for all operators discharging these pollutants into Chinese marine environments. Pollutants not explicitly listed may refer to this standard for guidance.
Technical requirements
The standard categorizes marine areas into two grades: Tier 1 sea areas (including specific bays, marine protected areas, and waters within 10 nautical miles from the coast) and Tier 2 sea areas (all other Chinese jurisdictional waters). Pollutants must comply with specific biological toxicity limits based on the grade of the sea area where they are discharged. It establishes biological toxicity allowable values (limits) for various pollutants. For base fluids and drilling fluids (including water-based, oil-based, and synthetic-based types), distinct toxicity thresholds are set depending on whether the discharge occurs in a Tier 1 or Tier 2 sea area. For drill cuttings, the carrying drilling fluid must meet the corresponding toxicity limits before discharge. The standard also defines the testing frequency required for compliance. Base fluids must be tested before application, drilling fluids require monthly testing per well, and produced water testing frequency varies based on the discharge rate and sea area grade. Operators must adhere to these testing schedules to ensure continuous compliance. Refer to GB/T 18420.2 for the specific testing methodologies.
Testing methods
Biological toxicity testing must be conducted according to the procedures specified in GB/T 18420.2. The testing involves exposing marine organisms to the pollutants under specific experimental conditions to determine the toxicity impact. Results are then compared against the allowable values to determine compliance.
FAQs
What products are regulated under GB 18420.1-2009?
The standard regulates pollutants from marine petroleum exploration, specifically base fluids, drilling fluids (water-based, oil-based, synthetic-based), drill cuttings, and produced water.
How are sea areas classified in GB 18420.1-2009?
Sea areas are divided into Tier 1 (sensitive areas like bays, protected zones, and nearshore waters within 10 nautical miles) and Tier 2 (all other jurisdictional waters). Discharge limits are stricter for Tier 1 areas.
How is compliance determined under this standard?
Compliance is determined by comparing the biological toxicity test result against the specified allowable value. If the test result is greater than or equal to the allowable value, the pollutant meets the biological toxicity requirements.
The summary above provides a high-level overview of GB 18420.1-2009. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 18420.1-2009 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Environmental protection
- CCS
- Z17
- ICS
- 13.030.20
- Competent department
- Ministry of Natural Resources (Marine)
- Technical committee
- National Technical Committee on Marine of Standardization Administration of China
Relationships
Replaces:GB 18420.1-2001