ASTM D8423-22

Overview

ASTM D8423-22: Standard Specification for Environmental Conditions for Post-packaged Storage and Retail Merchandising of Cannabis/Hemp Flower provides comprehensive guidelines for controlling environmental conditions-such as temperature, humidity, and lighting-surrounding packaged cannabis and hemp flower. The standard’s purpose is to ensure the safety, quality, preservation, and weight stabilization of cannabis/hemp flower products intended for human use as they move through the distribution supply chain until they reach the end user or another licensed operator.

This specification applies exclusively to fresh-format cannabis and hemp flower, not to products intended for extraction or frozen storage. Developed according to internationally recognized principles, ASTM D8423-22 supports consistency and product integrity for purveyors such as packagers, transporters, warehousing, and retail operators.

Key Topics

• Temperature Control: Specifies that the environment immediately surrounding packaged cannabis/hemp flower shall not exceed 30°C for more than two hours and must always be kept above 1°C to prevent freezing. Lower storage temperatures, as long as freezing is avoided, better preserve product quality.
• Relative Humidity (RH) Maintenance: Requires RH to be maintained between 60% and 65% around packaged flowers, minimizing risks of mold, degradation, and weight changes.
• Light Exposure: Calls for limiting light (visible and ultraviolet) exposure to the minimum necessary for inspections, recommending UV filters on fluorescent lights and preference for LED fixtures.
• Monitoring and Record-Keeping: Mandates regular measurement of temperature and RH using suitable monitoring equipment, either automated or manual. Accurate records must be maintained to verify compliance.
• Chain of Custody: The specification applies up until the transfer of ownership to another licensed operator or the end consumer, ensuring robust environmental conditions throughout the post-packaging supply chain.

Applications

• Cannabis and Hemp Industry: Licensed operators-such as cultivators, processors, packagers, distributors, transport companies, warehouses, and retailers-use this standard to maintain product quality from packaging to point of sale.
• Retail and Storage Environments: Retailers and storage facilities apply these environmental conditions to protect cannabis/hemp flower, maintain legal compliance, and ensure consumer safety.
• Supply Chain Assurance: Enables traceability and verification for quality assurance programs by requiring detailed monitoring and record-keeping throughout transit and storage.
• Quality Management: Supports best practices in industrial cannabis/hemp storage by helping prevent mold, contamination, and product degradation, resulting in better consumer satisfaction.

Related Standards

• ASTM D8196: Practice for Determination of Water Activity in Cannabis Flower, supporting moisture management and shelf-life.
• ASTM D8197: Specification for Acceptable Water Activity Range for Dry Cannabis Flower.
• ASTM D8233: Guide for Packaging and Labeling of Consumer Resin Cannabis Products.
• ASTM D8270: Terminology Relating to Cannabis, providing definitions and technical language for the industry.
• ASTM D8309: Guide for Stability Testing of Cannabis-Based Products.

Practical Value

Implementing ASTM D8423-22 helps cannabis and hemp businesses reduce the risk of physical and microbial degradation, ensure regulatory compliance, and deliver safer products with stable potency and weight to consumers. By maintaining tightly controlled environmental conditions during storage and retail, licensed operators can prevent mold, preserve efficacy, and extend shelf life. The standard streamlines quality management and operational protocols, benefiting the entire cannabis/hemp supply chain.

Keywords: ASTM D8423-22, cannabis storage standard, hemp flower storage, environmental conditions, humidity control, temperature control, cannabis quality assurance, packaging standards, cannabis supply chain compliance, post-packaged cannabis storage, retail cannabis preservation