This standard specifies the treatment and disposal requirements of waste liquid in the production process of naphthalene dyestuff intermediates, including treatment methods and environmental protection measures. It is applicable to the treatment of waste liquid of dyestuff intermediates produced from naphthalene, such as H acid, J acid, etc. The document details the treatment steps, technical requirements and relevant environment protection standards of waste liquid to ensure that the waste liquid treatment process complies with national environmental protection regulations. The standard covers the identification of hazardous wastes, treatment process, pollution control and sampling sample preparation and other technical requirements to reduce the impact of production waste liquid on the environment.