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Mandatory ISI Mark Compliance: The BIS certification under IS 5478:1969 is mandatory while manufacturing and selling thermostat metal sheets and strips in India.
Guaranteed Thermal Accuracy and Performance – ThermTest certification verifies the proper functioning of the heating and cooling mechanism to provide accurate temperature control.
Improved Safety & Durability: The thermostat metals licensed by BIS are resistant to fatigue, thermal cycles, and early component failure.
Standardized Manufacturing Quality: This ensures that the thickness and the sizes are standardized.
Guaranteed Market Trust & Acceptance By Indian Authorities: Guaranteed market trust & acceptance by Indian authorities due to certification by BIS..
Introduction
Metal sheets and strips used in thermostats have crucial applications in temperature control and automatic action. These metals consist of layers with varying properties of expansion due to temperature, which act in a predictable manner while bending because of temperature changes.
These are extensively used in thermostats, circuit breakers, temperature sensors, domestic appliances, and industrial control systems. IS 5478:1969 IS 5478:1969 ensures that these materials possess desirable standards for their thermal, mechanical, and dimension qualities, as set by the BIS, thus providing for safety, accuracy, and longevity respectively. Bureau of Indian Standards
What Are Thermostat Metal Sheet & Strip IS 5478:1969?
IS 5478:1969 is an Indian Standard that specifies the technical requirements and the quality requirements of thermostat metal sheets and metal strips. These requirements include:
- Chemical composition – This serves to guarantee predictable behavior regarding thermal expansion.
- Temperature sensitivity – Corrected deflection per unit temperature change.
- Bonding quality – Strong adhesion between metal layers
- A better understanding of this
- Mechanical properties – Strength, Elasticity, Fatigue Resistance
- Dimensional accuracy: This describes how well the actual dimensions of the object are standardized
- Surface finish – Clear of cracks, delamination, or surface defects.
- Testing and inspection techniques – Provides uniform quality in production lots
Through the implementation of IS 5478:1969, the thermal characteristics, mechanical qualities, and life of thermostat metal products are ensured.
ISI Mark Certification for Thermostat Metal Sheet & Strip
Thermostat metal sheets/strips are required to comply with IS 5478:1969 specifications under ISI Mark Certification Scheme for their legal production and sale in India. BIS certification provides assurance that the following are met:
- Precise and reliable thermal performance
- Effective binding of metal layers
- Fatigue resistance and thermal cycling endurance
- Dimensional accuracy, for applications requiring precise temperatures
- Efficient quality control on production lots
It is mandatory for the manufacturer to obtain the ISI mark only after possessing a valid BIS license, which guarantees the product meets the approved standards.
Why Is BIS Certification Mandatory for Thermostat Metal Sheet & Strip?
Serious risks from the use of non-certified thermostat metal materials include:
- Incorrect temperature sensing or control
- Premature failure because of poor bonding or fatigue.
- Safety hazards in electrical and thermal systems
- Increased costs for maintenance and replacement
BIS certification gives assurance of:
- Conforms fully to IS 5478 : 1969
- Reliable thermal and mechanical performance
- Improved safety in temperature-controlled
- applications Better market acceptance and consumer confidence
Importance and Benefits of BIS Certification
| Importance | Benefits |
| Compliance with IS 5478:1969 | Ensures accurate thermal response |
| Standardized manufacturing | Guarantees consistent quality |
| Mechanical & thermal reliability | Reduces failure in control systems |
| Regulatory compliance | Prevents legal issues and product rejection |
| Brand credibility | Builds trust with OEMs and consumers |
Step-by-Step BIS Certification Process
Step 1: Documentation
Draw up particulars for company registration, production, and technical specifications of products, as required by BIS.
Step 2: Product Testing
The samples made out of the thermostat metal sheets and strips are tested for thermal sensitivity, bonding quality, mechanics, and dimensions at BIS recognized laboratories.
Step 3: Application Submission
The application form along with test reports must be submitted on the BIS online portal itself.
Step 4: Inspection & Factory Examination
BIS officials perform an on-site visit to inspect the production processes and the testing and quality control procedures.
Step 5: Grant of Licence
After successfully inspecting and testing, BIS gives the license to the manufacturer to mark their products with the ISI mark.
Documents Required for BIS Certification
- Certificate of company registration
- Manufacturing unit details
- Specifications for thermostat metal sheets/rolls & metal thermostat strips
- Reports from BIS-recognized laboratories on biometric
- Brand Authorization (as applicable)
Timeline, Validity & Renewal
- Certification Timeline: 20–30 working days
- Licence Validity: 1–2 years
- Renewal: Submitting fresh documents and ensuring compliance on expiry of license
Conclusion
BIS Certification for Thermostat Metal Sheet & Strip IS 5478:1969
The above-mentioned BIS certification of Thermostat Metal Sheet & Strip IS 5478:1969 is a mark of utmost importance in determining the standards of the commodities in relation to their safety, dependability, and quality. There would never be any question regarding the
IS 5478:1969 is not merely an important legal requirement that has to be fulfilled, but what matters is that it is an important decision that gives even further greater credibility to the product, apart from ensuring safe functioning of temperature-sensitive products through BIS certified Thermostat metal sheets and strips.
Frequently Asked for Questions
What is BIS certification IS 5478: 1969?
This specifies thermostat metal sheets and strips for thermal, safety, and quality requirements in India.
Is BIS certification compulsory for thermostat metals?
Yes, BIS certification by IS 5478:1969 is mandatory. It is mandatory in India.
What does IS 5478:1969 specify?
It describes thermal sensitivity, bonding quality, mechanical characteristics, and dimensional accuracy.
Who grants BIS certification in India?
Bureau of Indian Standards (BIS).
What is the isi mark on the thermostat metal sheets?
It specifies adherence to IS 5478:1969 quality standards.
In which applications are the metal sheets for thermostats usually found?
In thermostats, circuit breakers, domestic appliances, and temperature regulating devices.
How long does the process of becoming BIS certified take?
Generally 20 to 30 working days.
What is the validity of a BIS licence?
The licence is valid for 1 to 2 years.
Is factory inspection required for BIS certification?
Yes, BIS conducts on-site factory inspections.
Why choose BIS-certified thermostat metal products?
They ensure safety, durability, thermal accuracy, and regulatory compliance.
