Specification for Halogenated hydrocarbons - halon 1211 and halon 1301 - fire extinguishing media

IS 15220 - Scope: Physical Properties of Halon 1211 and Halon 1301

Notes:

• All numerical values should be rounded as per IS 2:1960.
• 1 bar = 10^5 Pa.

This table defines the essential physical properties for design and compliance related to Halon 1211 and 1301 as per IS 15220, Clause 4.2.

flowchart LR
    A[Halon Type] --> B[Physical Properties]
    B --> C[Relative Molecular Mass]
    B --> D[Boiling & Freezing Points]
    B --> E[Critical Properties]
    B --> F[Vapour Pressure]
    B --> G[Density & Volume]

This scope ensures correct selection and

IS 15220: Definitions & Key Physical Properties of Halons 1211 and 1301

Key Definitions (Clause None)

• Values for tests or analysis results must be rounded per IS 2:1960, maintaining the same significant figures as specified.

Physical Properties (Clause 4.2, Table 2)

Notes:

• 1 bar = 10^5 Pa
• These properties are essential for design, safety, and handling of Halon-based fire suppression systems.

flowchart LR
    A[Halon 1211] -->|Boiling Point| B(-4°C)
    A -->|Critical Pressure| C(42.06 bar)
    A -->|Liquid Density| D(1830 kg/m³)
    E[Halon 1301] -->|Boiling Point| F(-57

IS 15220 — Key Requirements for Halons 1211 & 1301

1. Purity & Quality (Table 1, Clause 4.1)

2. Physical Properties (Table 2, Clause 4.2)

IS 15220 - Physical Properties of Halons 1211 & 1301 (Clause 4.2)

Additional Notes:

• 1 bar = 10⁵ Pa
• Purity and quality requirements are in Table 1 (Clause 4.1), e.g., minimum purity 99.0% for Halon 1211 and 99.6% for Halon 1301.
• These properties are essential for design, handling, and safety assessments of Halon-based fire suppression systems.

flowchart LR
    A[Halon Physical Properties] --> B[Critical Properties]
    A --> C[Vapour Pressure]
    A --> D[Density]
    B --> E

IS 15220 - Methods of Test: Key Specifications & Tables

1. Rounding Off (IS 2:1960)

• Final test values must be rounded to the same significant figures as specified in the standard.

2. Table 1: Chemical Requirements for Halons (Clause 4.1)

3. Table 2: Physical Properties of Halons (Clause 4.2)

IS 15220 Key Points: Packaging and Filling of Halons

Packaging:

• Halon 1211: Filled in gas cylinders conforming to IS 3196 (Part 2).
• Filling ratio: Filled to 75% (v/v) of the cylinder volume.
• Halon 1301: Due to high pressure liquefiable nature, filled in cylinders conforming to IS 7285.

Physical Properties (Table 2 Summary):

Marking Requirements (Clause 7.1):

• Manufacturer’s name/trademark
• Manufacture date (month/year)
• Product name ("Halon 1211" or "Halon 1301")
• Cylinder source, manufacture year, test pressure
• Empty and filled mass of cylinder

Summary Formula for Filling Volume:

[ \text{Filling volume} = 0.75 \times \text{Cylinder internal volume} ]

flowchart TD
    A[Start: Select Halon Type] --> B{Halon 1211?}
    B -- Yes --> C[Use IS 3196 (Part 2) cylinder]
    B -- No --> D[Use IS 7285 cylinder (Halon 1301)]
    C --> E[Fill to 75% volume]
    D --> E
    E --> F[Mark cylinder per Clause 7.1]
    F --> G[Ready for use]

This ensures safe packaging and filling per IS 15220.

IS 15220 - Marking Requirements (Clause 7.1 & 7.1.1.1)

Each Halon container must be legibly and indelibly marked on the outside with:

• Manufacturer's name and trade-mark
• Month and year of manufacture
• The words "Halon 1211" or "Halon 1301" prominently
• Source, year of manufacture of the cylinder, and its test pressure
• Empty mass of the cylinder
• Filled mass of the cylinder

The use of the Standard Mark is regulated by the Bureau of Indian Standards Act, 1986.

Physical Properties of Halons (Table 2, Clause 4.2)

Notes:

• Marking ensures traceability & safety compliance.
• Follow IS 2:1960 for rounding off numerical values.
• For licensing and Standard Mark use, contact Bureau of Indian Standards.

flowchart TD
    A[Manufacturer] --> B[Mark container]
    B --> C{Marking includes}
    C --> D[Name & Trade-mark]
    C --> E[Month & Year of Manufacture]
    C --> F["Halon 1211" or "Halon 1301"]
    C --> G[Source, Year & Test Pressure]
    C --> H[Empty Mass]
    C --> I[Filled Mass]
    B --> J[Standard Mark License]
    J --> K[BIS Act 1986

IS 15220: Environmental & Regulatory Considerations for Halons 1211 & 1301

Key Specifications (Clause 4.1 & 4.2)

Physical Properties (Table 2, Clause 4.2)

Environmental Notes:

• Halons have ozone depletion potential; use is regulated.
• Ensure compliance with local environmental regulations for handling and disposal.
• Purity and contaminant limits ensure safe and effective use.

Summary Diagram: Halon Physical Properties

graph LR
A[Halon 1211] --> B(Boiling Point: -4°C)
A --> C(Critical Temp: 153.8°C)
A --> D(Vapour Pressure @20°C: 2.53 bar)

E[Halon 1301] --> F(Boiling Point: -57.8°C)
E --> G(Critical Temp: 67°C)
E --> H(Vapour

IS 15220: Restrictions and Phase-out Guidelines for Halons 1211 & 1301

Key Specifications (Clause 4.1 & 4.2)

Physical Properties (Table 2, Clause 4.2)

Phase-out & Restrictions

• Government of India mandates strict compliance with phase-out programmes for Ozone Depleting Substances (ODS).
• Availability of Halons will be restricted progressively.
• Users must follow detailed government instructions for transition to alternative agents.

Summary Diagram: Phase-out Process

flowchart LR
    A[Current Halon Use] --> B[Government Phase-out Notification]
    B --> C[Compliance with Testing & Purity]
    C --> D[Restricted Availability]
    D --> E[Switch to Alternatives]
    E --> F[Complete Phase-out]

Note: Always refer to the latest government notifications for updated timelines and compliance requirements.

IS 15220: Committee Composition Summary

Committee: Fire Fighting Sectional Committee, CED 22
Composition details: Provided in Annex A (Foreword)

Key Points from Annex A:

• Chairman: Shri Om Prakash (Ministry of Home Affairs, New Delhi)
• Members represent diverse organizations including:
  • Airport Authority of India
  • Andhra Pradesh Fire Services
  • Bhabha Atomic Research Centre
  • Bombay Fire Brigade
  • Central Building Research Institute
  • Central Industrial Security Force
  • Defence Research and Development Organization
  • Various Fire Services and Safety Companies
  • Industry representatives and personal capacities
  • BIS Directorate General (Ex-officio)

Specifications:

• The committee includes senior officials, fire safety experts, engineers, and industry representatives.
• Alternate members are nominated for many organizations ensuring continuity.
• The committee ensures comprehensive expertise covering government, industry, research, and fire safety.

Visual: Committee Structure (Simplified)

graph TD
    A[Chairman: Ministry of Home Affairs] --> B[Government Agencies]
    A --> C[Fire Services]
    A --> D[Research Institutes]
    A --> E[Industry Representatives]
    A --> F[BIS Directorate General]

    B --> B1[Airport Authority of India]
    B --> B2[Central Industrial Security Force]
    C --> C1[Andhra Pradesh Fire Services]
    C --> C2[Delhi Fire Service]
    D --> D1[Central Building Research Institute]
    D --> D2[Defence R&D Organization]
    E --> E1[Fire and Safety Appliances Co.]
    E --> E2[Mather and Platt Ltd.]

For detailed member names and organizations, refer to Annex A of IS 15220.