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India’s transition towards renewable energy sources is gaining momentum, with solar water heating systems playing a pivotal role in this green revolution. To ensure the quality, safety, and performance of these systems, the Bureau of Indian Standards (BIS) introduced IS 16544: 2016. This standard outlines comprehensive guidelines for the design, performance, and testing of all-glass evacuated tubes solar water heating systems, making it a cornerstone in promoting reliable and efficient solar energy solutions. BIS certification for glass evacuated tubes solar water heating systems ensures that products meet stringent quality standards, fostering consumer trust and supporting the nation’s renewable energy goals.
Diligence Certifications offers expert guidance and end-to-end support for manufacturers seeking BIS certification under IS 16544: 2016. From understanding the standard’s requirements to navigating the certification process, Diligence Certifications ensures a seamless experience, helping businesses achieve compliance efficiently. This blog delves into IS 16544: 2016, its key features, the certification process, and the value-added services provided by Diligence Certifications, making it an indispensable resource for stakeholders in the solar energy sector.
IS 16544:2016 – All-Glass Evacuated Tubes Solar Water Heating System
The Bureau of Indian Standards (BIS) established IS 16544:2016 to define quality and performance benchmarks for all-glass evacuated tube solar water heating systems. This standard aims to promote the adoption of reliable and efficient solar water heating technologies, which play a crucial role in India’s commitment to renewable energy and sustainability.
Scope of IS 16544:2016
This standard specifies requirements for:
- Design: Ensures that systems are engineered for optimal heat absorption and durability.
- Performance: Sets benchmarks for thermal efficiency and water heating capacity.
- Testing: Mandates stringent evaluation criteria to ensure long-term reliability under various operating conditions.
Importance of BIS Certification for IS 16544:2016
Obtaining BIS certification ensures that the product complies with IS 16544:2016 standards, benefiting manufacturers, consumers, and the environment:
- Consumer Trust: Certified products offer assurance of quality and reliability.
- Market Access: Certification is mandatory for selling such products in the Indian market.
- Regulatory Compliance: Helps manufacturers meet statutory requirements.
- Sustainability: Encourages the adoption of energy-efficient technologies, reducing carbon footprints.
Key Highlights of IS 16544: 2016
The standard ensures the safety, reliability, and performance of glass evacuated tube solar water heating systems. Below is a summary of its key highlights:
| Key Aspect | Details |
| Raw Material | Borosilicate glass, aluminum, copper, and other corrosion-resistant materials |
| Possible Tests in a Day | Thermal performance tests, vacuum degradation tests, and durability tests |
| Sampling During License | Samples drawn as per specified frequency for testing |
| Sample Size | Typically 2-3 units, depending on the test |
Grouping Guidelines
To simplify the certification process and reduce redundant testing, grouping guidelines are specified under IS 16544: 2016. These guidelines categorize products based on key parameters such as:
- Tube Size: Length and diameter.
- Capacity: Volume of the solar water heating system.
- Material Grade: Variations in borosilicate glass composition.
Products within the same group are considered equivalent for testing, enabling manufacturers to achieve BIS certification for multiple variants with minimal effort.
List of Test Equipment (with Clauses)
Testing plays a critical role in ensuring compliance with IS 16544: 2016. Below is a table listing essential test equipment and their corresponding clauses:
| Clause | Test Description | Equipment Required |
| 7.1 | Thermal Performance Test | Solar simulator, flow meters, and thermocouples |
| 7.2 | Vacuum Degradation Test | Vacuum gauges and test chambers |
| 7.3 | Durability Test | High-pressure water pumps and impact testers |
| 7.4 | Material Compatibility | Corrosion resistance chambers and chemical analyzers |
| 7.5 | Absorptance and Emittance of Coating | Spectrophotometers |
Scheme of Inspection and Testing (SIT)
The Scheme of Inspection and Testing (SIT) under IS 16544: 2016 ensures consistent quality throughout the manufacturing process. Key elements include:
- Inspection of Raw Materials: All incoming raw materials are inspected for compliance with specified requirements.
- In-Process Inspections: Critical parameters are monitored during manufacturing, such as glass tube sealing and vacuum creation.
- Finished Product Testing: Every batch undergoes performance and durability tests before dispatch.
- Record Maintenance: Detailed records of inspections and tests are maintained for traceability.
BIS Certification Process for Glass Evacuated Tubes Solar Water Heating System
Obtaining BIS certification for all-glass evacuated tube solar water heating systems involves the following steps:
- Application Submission: The manufacturer submits an application to BIS along with technical details and necessary documentation.
- Preliminary Inspection: BIS officials conduct a preliminary factory inspection to assess production capabilities and quality control measures.
- Sample Testing: Samples are drawn during the inspection and sent to BIS-recognized laboratories for testing.
- Test Report Review: Test reports are reviewed against the requirements of IS 16544: 2016.
- Grant of License: If all criteria are met, BIS issues the certification, allowing the manufacturer to use the BIS Standard Mark.
- Surveillance Audits: Regular surveillance audits are conducted to ensure continued compliance.
Why Choose Diligence Certifications?
Diligence Certifications is a trusted name in the field of product certification, helping manufacturers navigate the complex BIS certification process. Key benefits of partnering with Diligence Certifications include:
- Expert Guidance: Comprehensive support in documentation, application submission, and factory inspections.
- Faster Approvals: Streamlined processes to minimize delays in obtaining certification.
- Technical Support: Assistance with understanding technical requirements and addressing non-conformities.
- Post-Certification Services: Regular updates on regulatory changes and guidance for maintaining compliance.
By choosing Diligence Certifications, manufacturers can achieve BIS certification for glass evacuated tube solar water heating systems efficiently and cost-effectively.
Conclusion
IS 16544: 2016 sets the benchmark for the design and performance of all-glass evacuated tube solar water heating systems, ensuring their reliability and efficiency. By adhering to this standard, manufacturers can enhance customer confidence and contribute to India’s renewable energy goals. For seamless BIS certification, Diligence Certifications provides end-to-end support, ensuring your products meet all regulatory requirements with ease. The adoption of IS 16544:2016-compliant solar water heating systems is a step toward sustainable energy solutions in India. BIS certification under this standard not only ensures product quality and safety but also contributes to the nation’s renewable energy targets. With the expertise of Diligence Certifications, manufacturers can achieve compliance effortlessly, gaining a competitive edge in the growing renewable energy market.
