Moisture-proof Sealed Door and Warehouse Protective Door GJB2805B-2021 Technical Requirements for Anti-Theft of Ordnance Warehouses

I. Standard Overview

1. Release and Implementation

   • The standard was released by the General Armament Department on July 6, 2021, and officially implemented on September 1, 2021, replacing the old version GJB2805A-2002.

   • Core Objective: To enhance comprehensive safety protection capabilities such as fire prevention, explosion resistance, and moisture resistance by standardizing the construction and technical management of anti-theft facilities in ordnance warehouses, ensuring the safety of weapons and equipment.

2. Scope of Application

   • Applicable to warehouses storing ordnance equipment, including supply bases, campaign warehouses, and unit-affiliated warehouses, covering the entire process of facility design, manufacturing, installation, and management.

II. Core Technical Requirements

1. Materials and Structural Design

• Material Selection: High-strength alloys or steel materials compliant with national defense standards must be used, with the main steel plate thickness ≥4mm, possessing pressure resistance, wear resistance, fire resistance, and corrosion resistance.

• Structural Design:

  • The door body must feature a sealed design (e.g., rubber sealing strips) to ensure no light, air, or water leakage, preventing the intrusion of harmful gases or flames.

  • Hinges must number ≥2, with an opening angle of 180°, and the locking mechanism must be operable only from the inside to enhance security.

2. Anti-Theft and Safety Performance

• Anti-Destruction Capability:

  • Anti-theft levels are classified as Level 1 (resistance to ordinary tools ≥40 minutes, resistance to power tools ≥25 minutes), requiring certification testing by the Ministry of Public Security.

  • Door frames and door leaves must adopt a mortise-and-tenon + welding dual connection, with weld strength ≥80% of the base material; an X-shaped reinforcement (10mm thick steel plate) is added inside the door leaf, improving impact resistance by 20%.

• Lock Requirements:

  • Mechanical combination locks or electronic locks must comply with the GA374-2019 standard, with combination possibilities ≥7×7×6 sets and a working life ≥60,000 cycles; lock bolts must number ≥4 and be irremovable from the outside.

  • Some scenarios require a dual-person dual-lock system (e.g., GA/T73-2015 Grade C locks), with anti-technical opening time ≥270 minutes.

3. Additional Functions and Testing

• Intelligent Monitoring: Some door bodies integrate alarm systems to achieve multiple layers of protection.

• Testing and Maintenance:

  • Before use, doors must pass tests for explosion resistance, anti-theft performance, and airtightness.

  • Regular inspections of door bodies, locks, sealing strips, and other components are required to ensure long-term reliability.

III. Differences from the Old Version Standard

• New Requirements: Added anti-theft measures for "small restricted areas," mandatory locks for every door, and strengthened key management and warehouse alarm device specifications.

• Integrated Content: Technical details originally in the appendices have been incorporated into the main text to enhance the standard's practicality and rigor.

IV. Typical Application Scenarios

• Facility Types: Include explosion-proof doors, blast-resistant doors, moisture-proof sealed doors, and equipment room protective doors, which must simultaneously meet explosion resistance, fire resistance, moisture resistance, and anti-theft requirements.

• Applicable Scenarios:

  • Warehouses storing flammable and explosive weapons or precision equipment.

  • Hazardous chemical warehouses, ship cabins, and other locations requiring waterproofing and explosion resistance.