Tumbler dryers are electrical appliances used to dry clothes quickly by rotating them in
a drum while blowing hot air. They are commonly used in homes, laundries, and
commercial spaces where fast and efficient drying is needed, especially during rainy
seasons or in places with limited sunlight.
To ensure the safety, performance, and quality of these appliances, the Bureau of Indian Standards (BIS) provides certification as per IS 302 (Part 2/Sec 11):1994. This certification ensures that tumbler dryers are properly tested for electrical safety, heating efficiency, insulation, and durability, making them safe and reliable for regular use while reducing risks of electric shock, overheating, or malfunction.
What is IS 302 (part 1):2024
This is the Indian Standard for tumbler dryers, which are electrical appliances used to
dry clothes by rotating them in a heated drum. It is a standard set by the Bureau of
Indian Standards (BIS) to ensure these appliances are safe, reliable, and are of good
quality for regular use.
This standard ensures that the product is:
- Safe to use and protected against electric shock
- Efficient in drying clothes evenly and quickly
- Properly insulated to prevent electrical leakage
- Durable for continuous and long-term use
- Designed with high-quality materials and construction
- Consistent in performance, safety, and manufacturing standards
Testing and Inspection Requirements for Tumbler Dryers
To ensure proper performance, safe operation, and quality of these dryers used in
household and commercial applications, the Bureau of Indian Standards (BIS) has
defined clear testing and inspection requirements during manufacturing.
What are R and S
- R (Required): Test must be done in the manufacturer’s own laboratory
- S (Subcontracting Allowed): Test can be done in a BIS-approved or external
laboratory
Electrical Safety Tests
- Electric Strength Test (R) – Ensures insulation can withstand high voltage
safely
- Protection Against Electric Shock (R) – Ensures no live parts are accessible
- Leakage Current Test (R) – Ensures current leakage is within safe limits
- Earthing Continuity Test (R) – Ensures proper grounding for safety
Performance Tests
- Drying Efficiency Test (R) – Ensures effective and uniform drying of clothes
- Power Input and Current Test (R) – Checks correct power consumption
- Temperature Rise Test (R) – Ensures safe operating temperature during use
- Functional Test (R) – Verifies overall working of the dryer
Safety and Durability Tests
- Moisture Resistance Test (R/S) – Ensures safe operation in humid conditions
- Abnormal Operation Test (R) – Checks safety during faults or misuse
- Mechanical Strength Test (R) – Ensures the appliance can withstand physical
stress
- Stability and Construction Test (R) – Ensures safe and stable design
Heat and Fire Resistance Tests
- Resistance to Heat Test (R) – Ensures components can handle high temperatures
- Fire Resistance Test (R) – Ensures materials are resistant to fire hazards
- Glow Wire Test (R) – Evaluates resistance to ignition due to electrical faults
BIS certification process for tumbler dryers

The BIS certification process ensures that the product meets the required standard for
proper and efficient operation as defined by the Bureau of Indian Standards (BIS). The
process includes the following steps:
1.
- Online Registration: Manufacturers register on the BIS Manak Online Portal by submitting company
details, factory information, and product specifications. Foreign manufacturers
must appoint an Authorized Indian Representative (AIR) in India.
- Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories to evaluate electrical
safety, insulation resistance, heating efficiency, durability, and overall
performance as per requirements.
- Application Submission: The application is submitted along with laboratory test reports, technical
documents, manufacturing process details, and factory information. Foreign
manufacturers must also provide AIR-related documents.
- Factory Inspection: BIS officials conduct an on-site inspection of the manufacturing unit to verify
production processes, quality control systems, safety measures, and compliance
with the standard.
- Grant of BIS License: If all requirements are successfully met, BIS issues the certification license under
Scheme-I, allowing the manufacturer to produce and sell certified products.
- Use of ISI Mark: After certification approval, the manufacturer is permitted to use the ISI mark
along with a CM/L number on the product, confirming compliance with the
standard.
Documents Required for IS 302 (Part 1): 2024 Certification
The following documents are typically required for obtaining BIS Certification:
| Basic Details | - GST Certificate
- Email ID & Contact Number
- Factory & Office Address
- Rent Agreement / Lease Deed (if applicable)
|
| Legal Documents | - Partnership Deed (if partnership firm)
|
| Manufacturing Details | - List of machinery
- Process flow chart
- Layout Plan of Factory
|
| Raw Material Details | - List of Raw Materials
- Supplier Details
- Raw Material Invoices
- Raw Material Test Certificates
|
| Testing & Quality Control | - List of Testing Equipment
- Calibration Certificates
- QC / Lab In-charge Appointment Letter & Qualification
|
| Production Details | - Annual Installed Capacity
- Last Year Production Value
|
| Product & Packaging Details | - Quantity per Package
- Nature of Packing
- Nature of Printing / Marking on Product
|
| Management Details | - Top Management Details
- Concerned Person for BIS Communication
|
| Brand & Certification Documents | - Trademark / Brand Certificate
- Consent Letter from BIS Recognized Laboratory
|
| Additional Documents | - Weekly Off Details
- Hygiene Document (if applicable)
- Relaxation Letter (if applicable)
- Any Other Relevant Document
|
Marking Requirements & License Validity
Marking Requirements
When a manufacturer obtains the BIS license, the ISI mark for tumbler dryers must be
applied clearly and permanently on the product or its packaging. In addition to the ISI
Mark, other important details must also be provided on the product or packaging, as
specified in the table below.This ensures the product meets all quality and safety
standards.
| Requirement | Details |
|---|
| ISI Mark | Indicates that the product is BIS certified and follows to the standard |
| Standard Number | IS 302 (part 2/sec 11) or IS 302 (part 1) |
| CML Number | Certification Marks Licence (CML) number issued by BIS |
| Manufacturer Details | Name of manufacturer or registered trademark |
| Size Details | Diameter, gauge, or dimensional specifications of product |
| Alloy Information | Grade or designation of aluminium alloy used |
| Batch / Date | Batch number, heat number, or manufacturing date for traceability |
Note:
Marking is typically applied using durable stamping, tagging, or permanent printing to
ensure clear identification during handling, storage, and transportation, as per BIS
marking requirements.
Validity of BIS licenses for tumble dryers
After obtaining BIS certification for the product, the license is valid for a fixed period and
must be maintained by following BIS rules and standards.
| Particulars | Details |
|---|
| Initial Validity | Typically 1 to 2 years, depending on BIS approval conditions |
| Renewal | Must be renewed before expiry by submitting the application along with the prescribed fee and updated documents |
| Surveillance | Includes periodic factory inspections and market sample testing conducted by BIS |
| Compliance | Continuous following to standard and applicable Quality Control Orders (QCOs) is mandatory |
| Risk | Non-compliance or failed sample testing may lead to suspension or cancellation of the BIS license. |
Cost of BIS certification for tumble dryers
The cost of BIS certification includes charges for application, inspection, license, testing,
and marking. These fees are paid to BIS as per Scheme I guidelines.
Cost Breakdown
Indian Manufacturers
| No. | Major Charges | Particulars | Amount | Remark |
| 1 | BIS Fees | Application Fee | INR 1,000 | — |
|
| Audit / Inspection Fee | INR 7,000 | — |
|
| License Fee | INR 1,000 | — |
|
| Marking Fee | Depends on product | Discount as per MSME |
| 2. | Testing Charges | Sample Testing Fee | As Applicable | Payable to a BIS-approved laboratory. |
| 3. | EVTL India Service Fee | Consultancy & Support | As per actual | Depends on product type and factory location. |
Foreign Manufacturers
| No. | Major Charges | Particulars | Amount | Remark |
| 1. | BIS Fees | Application Fee | USD 15 | Payable via SWIFT to BIS. SAARC countries can pay INR with 18% GST. |
|
| Audit Charges | USD 3,200 – 5,900 | Depend on Country |
|
| License Fee | USD 15 | — |
|
| Marking Fee | Depends on product | — |
| 2. | Testing Charges | Sample Testing Fee | As Applicable | Payable to a BIS-approved laboratory. |
| 3. | EVTL India Service Fee | Consultancy & Support | As per actual
| Based on product and manufacturing location. |
Note: Additional costs such as pre-testing or factory pre-inspection may apply. The total
cost may vary depending on product type, testing requirements, and current BIS
guidelines.
Conclusion
The BIS certification for tumbler dryers, as per IS 302 (Part 2/Sec 11):1994 or IS
302(part 1), ensures that the product meets the required standards of safety, quality,
and performance for efficient drying operations. It also ensures that the dryer is properly
tested for electrical safety, heating performance, insulation, and durability, making it
suitable for regular household and commercial use while reducing the risk of electric
shock, overheating, or malfunction.
With the support and guidance of an experienced BIS consultant like EVTL India,
manufacturers can complete the certification process smoothly, reduce errors, and
obtain faster approval for their products.