Department of Toxic Substances Control - Waste Classification

Acute Inhalation Toxicity

Acute Inhalation Toxicity is the concentration of a substance or mixture of substances in air, which, when inhaled continuously for eight hours by a group of 10 or more laboratory white rats, produces death in half the group within 14 days. The waste is hazardous if inhalation LC₅₀ is less than 10,000 ppm.

Inhalation Toxicity swf

Click here for details and an example: LC₅₀ and Head Space Vapor.

Title 22 CCR §66261.24(a)(5)

Objectives Course Navigation Navigation FAQs

Responsibility for Determination Classification Requirements Procedure: 5 Questions

State Waste Exclusions Federal Waste Exclusions Hazardous Waste Exclusions Hazardous Waste Exceptions Statutory Exclusions/Exemptions RCRA Empty and CA Empty Universal Waste Household and Small Qty. Generators

RCRA Listed Hazardous Waste

Delisting Other Listed Waste (Article 4.1) California Listed Mixture Rule

Non-specific Sources Specific Sources Discarded Commercial Chemical Products RCRA Listed Mixture Rule RCRA Listed Derived-from Rule RCRA Listed Contained-in Policy

Reactive Wastes Ignitable Wastes Corrosive Wastes Characteristic Wastes

Federal Toxicity Characteristics Persistent and Bioaccumulative Toxic Substances TCLP and WET Test Methods Acute Oral Toxicity Acute Dermal Toxicity Calculated Oral or Dermal Toxicity Acute Inhalation Toxicity Acute Aquatic Toxicity Carcinogenicity Toxicity by Experience or Testing

RCRA Hazardous Wastes Non-RCRA Hazardous Wastes Acutely and Extremely Hazardous Wastes Special Waste

Generator Knowledge Analytical Testing

Sampling Objectives Basic Sampling Strategies

Statistical Analysis

Authoritative Sampling Probability Sampling Composite Sampling

Environmental Regulations Telephone Resources Printed Resources and Support Organizations Online and Computerized Resources