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BIS-ISI-CERTIFICATE

IS 4992:1975

Door handles for mortice lock (vertical type)

Door handles for mortice lock (vertical type)
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1. Summary about Door Handles for Mortice Lock (Vertical Type)

These door handles are designed specifically for use with mortice locks in vertical orientation. They are commonly used in residential and commercial door systems requiring integrated locking mechanisms.


2. Why BIS Certificate is Mandatory for Door Handles for Mortice Locks

BIS certification is mandatory to ensure proper fit, mechanical strength, and reliable operation with mortice locking systems.


3. What is BIS Certified for Door Handles for Mortice Lock (Vertical Type)

BIS certification confirms compliance with Indian Standards covering dimensions, material strength, and operational performance.


Tests required for Door Handles for Mortice Lock (Vertical Type)

TitleRequired/Optional
Axial Strength

Optional

Safety Requirements

Required

Durability of Mechanism

Optional

Corrosion Resistance

Optional

Fire Resistance Tes

Optional


4. Benefits of BIS Certification for Door Handles for Mortice Locks

  • Ensures compatibility with mortice locks
  • Mandatory for regulated hardware supply
  • Improves durability and operational reliability
  • Reduces installation and usage issues
  • Enhances product acceptance

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