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See Chinese contents: SY/T 6788-2010 SY/T 6788-2010: Evaluation procedures of environmental protection for water-soluble oilfield chemicals
This Standard specifies the environmental protection requirements and evaluation method of biological toxicity, biodegradability and heavy metal content in water-soluble oilfield chemicals that are used in oil and gas field. This Standard applies to the testing and evaluation of biological toxicity, biodegradability and heavy metal content during the production, purchase and use of water-soluble oilfield chemicals that are used in oil and gas field.
