BIS Certification Consultancy for Polyurethane Sole, Semirigid | IS 13893:1994

Introduction

Semirigid Polyurethane Soles are widely used in footwear manufacturing because of their combination of strength, flexibility, cushioning and resistance to everyday wear. They are used in different types of footwear where a durable and properly finished sole is required.

For manufacturers producing semirigid polyurethane soles in India, compliance with the applicable Indian Standard is important for maintaining consistent product quality and meeting applicable certification requirements.

IS 13893:1994 – Semirigid Polyurethane Sole – Specification specifies requirements for semirigid polyurethane soles used in footwear applications.

Qualitance India provides BIS Certification Consultancy for Polyurethane Sole, Semirigid as per IS 13893:1994, including assistance with product assessment, documentation, testing, BIS application and factory inspection preparation.

Product ke baare mein

A Polyurethane Sole is a footwear sole made using polyurethane-based material. In semirigid form, the sole is designed to provide a balance between rigidity and flexibility.

Semirigid polyurethane soles can provide:

Good cushioning
Mechanical strength
Wear resistance
Flexibility
Lightweight construction
Comfortable walking characteristics
Durable footwear performance

These soles may be supplied as:

Finished footwear soles
Separate sole units
Footwear components
Sole assemblies for footwear manufacturers

The quality of the sole depends on the formulation, manufacturing process, moulding conditions, density, dimensional accuracy and physical properties.

Applicable IS Standard

The applicable Indian Standard is:

IS 13893:1994 – Semirigid Polyurethane Sole – Specification

Manufacturers should verify the latest applicable edition, amendments and current BIS requirements before applying for certification.

Scope of Standard

IS 13893:1994 covers semirigid polyurethane soles intended for footwear applications.

The standard establishes requirements relating to the quality and performance of the sole.

Important characteristics can include:

Dimensions
Physical properties
Density
Hardness
Tensile properties
Abrasion resistance
Flexing behaviour
Sole construction
Workmanship
Appearance

The exact requirements and applicable test methods should be confirmed against the current provisions of IS 13893:1994.

Product Requirements

Semirigid Polyurethane Soles should conform to the applicable requirements specified in IS 13893:1994.

Important characteristics may include:

Dimensions

The sole should conform to the specified dimensions and permissible tolerances.

Hardness

The sole should have the required hardness suitable for its intended footwear application.

Density

Density is an important property affecting weight, cushioning and performance.

Tensile Properties

The material should have suitable tensile characteristics as required by the standard.

Abrasion Resistance

The sole should demonstrate adequate resistance to wear under applicable test conditions.

Flexing Performance

The sole should be capable of withstanding repeated flexing without unacceptable deterioration.

Workmanship

The finished sole should be properly moulded and free from unacceptable defects.

Appearance

The surface should have a satisfactory finish and should be free from defects that could affect its performance or appearance.

Testing Requirements

Testing is an important part of BIS Certification for Semirigid Polyurethane Soles.

Depending on the applicable requirements of IS 13893:1994, testing may cover:

Dimensions
Density
Hardness
Tensile strength
Elongation
Abrasion resistance
Flexing resistance
Other applicable physical properties
Workmanship and appearance

Testing should be performed using the applicable test methods referenced by the standard.

Physical Property Testing

Physical testing helps determine whether the polyurethane sole has the required characteristics for footwear use.

Important properties may include:

Hardness Test

Hardness testing helps evaluate the resistance of the polyurethane material to indentation.

Density Test

Density testing helps verify the consistency and physical characteristics of the sole material.

Tensile Test

Tensile testing evaluates the strength and elongation characteristics of the material.

Abrasion Test

Abrasion testing evaluates the resistance of the sole to wear.

Flexing Test

Flexing assessment helps determine whether the sole can withstand repeated bending during normal footwear use.

Raw Material Requirements

The quality of semirigid polyurethane soles depends significantly on the raw materials and formulation used during manufacturing.

Typical raw materials may include:

Polyurethane system components
Polyols
Isocyanate components
Catalysts
Blowing agents, where applicable
Pigments
Additives
Release agents
Other formulation materials

Manufacturers should maintain suitable controls over incoming raw materials.

Important records may include:

Supplier details
Raw-material specifications
Batch numbers
Material certificates
Incoming inspection records
Storage conditions
Formulation records
Material traceability

Manufacturing Requirements

A typical manufacturing process for semirigid polyurethane soles may include:

Raw-material procurement
Incoming material inspection
Raw-material storage
Formulation preparation
Metering of components
Mixing
Mould preparation
Pouring/injection
Foaming and mould filling
Curing
Demoulding
Trimming
Finishing
Dimensional inspection
Physical testing
Visual inspection
Sorting
Packing
Marking
Final dispatch

The actual process can vary according to the manufacturer's polyurethane system, machinery and production technology.

BIS Certification Process

Step 1 – Product Assessment

The semirigid polyurethane sole is reviewed against the requirements of IS 13893:1994.

Step 2 – Product Scope Identification

The applicable sole types, sizes, designs and product varieties are identified.

Step 3 – Manufacturing Facility Review

The manufacturing process and available machinery are assessed.

Step 4 – Testing Facility Review

Applicable testing arrangements are reviewed.

Step 5 – Documentation

Technical and factory documents are prepared.

Step 6 – Sample Preparation

Representative sole samples are selected for testing.

Step 7 – Laboratory Testing

Samples are tested against applicable requirements.

Step 8 – BIS Application

The required application and supporting documents are submitted.

Step 9 – Application Scrutiny

BIS reviews the submitted information and documents.

Step 10 – Factory Inspection

The manufacturing facility may be assessed for production and quality-control capabilities.

Step 11 – Observation Closure

Any observations or deficiencies are addressed.

Step 12 – Licence Grant

After successful completion of the applicable requirements, certification is granted for the approved product scope.

Documents Required

Typical documents may include:

Company registration documents
Factory address proof
Factory layout
Manufacturing process flow
Machinery list
Product specifications
Sole drawings
Product dimensions
Raw-material specifications
Polyurethane formulation details
Raw-material test reports
Internal test reports
Laboratory test reports
Testing equipment list
Calibration certificates
Quality-control plan
Inspection records
Production records
Product photographs
Packing details
Marking details
Authorised signatory documents
Trademark documents, where applicable

The exact documents depend on the applicant, manufacturing process and proposed certification scope.

Factory Inspection

Factory inspection helps verify whether the manufacturer has suitable arrangements for producing semirigid polyurethane soles consistently.

The assessment may cover:

Raw Material Storage

Raw materials should be properly identified, stored and controlled.

Mixing System

Equipment used for polyurethane component mixing and processing may be inspected.

Moulding Equipment

Moulding machinery and associated equipment may be assessed.

Curing Arrangements

Suitable curing arrangements should be maintained.

Finishing

Trimming and finishing processes should provide consistent product quality.

Testing Facilities

Equipment for applicable physical tests should be available or appropriate testing arrangements should be maintained.

Calibration

Measuring and testing equipment should have valid calibration or verification records.

Quality Control

Incoming, in-process and final product inspection procedures should be documented.

Records

Production, inspection, testing and calibration records should be properly maintained.

Product Quality Checks

Manufacturers should perform quality checks throughout the manufacturing process.

These may include:

Raw-material inspection
Component ratio verification
Mixing-process checks
Mould inspection
Sole dimensions
Weight
Density
Hardness
Tensile properties
Elongation
Abrasion resistance
Flexing resistance
Surface inspection
Colour inspection
Trimming inspection
Workmanship
Final product inspection

Common Reasons for Testing/Certification Failure

Common problems may include:

Incorrect polyurethane formulation
Incorrect component ratio
Poor raw-material quality
Incorrect density
Hardness outside the specified requirement
Insufficient tensile strength
Poor elongation characteristics
Excessive abrasion
Flexing failure
Dimensional variation
Improper moulding
Surface defects
Incomplete curing
Poor trimming
Inconsistent product quality
Inadequate testing facilities
Expired calibration
Incorrect sampling
Incomplete documentation
Incorrect product specifications

Proper process control and pre-testing can help reduce avoidable failures.

BIS Marking

After certification, the manufacturer must follow the applicable BIS marking requirements and licence conditions.

Where applicable, marking may contain:

BIS Standard Mark
Licence number
Manufacturer identification
Product identification
Size or model information
Batch or lot details
Other required information

The exact marking requirements should be followed according to the current BIS certification conditions.

Who Needs BIS Certification

Manufacturers producing semirigid polyurethane soles should assess the current BIS certification requirements applicable to their products.

This may include:

Polyurethane sole manufacturers
Footwear component manufacturers
Shoe sole manufacturers
Footwear factories
PU footwear component suppliers
Footwear brands manufacturing their own soles
Industrial footwear component suppliers

Manufacturers supplying polyurethane soles to footwear manufacturers should also assess whether their specific product falls under a mandatory certification requirement.

Cost

The cost of BIS Certification depends on several factors, including:

BIS application charges
Laboratory testing charges
Number of product varieties
Number of sole designs
Size range
Sample requirements
Factory inspection
Testing equipment
Calibration
Retesting, if required
Consultancy charges

A more accurate estimate can be provided after reviewing the manufacturer's product range and proposed certification scope.

Timeline

The certification timeline depends on:

Product readiness
Documentation
Sample preparation
Laboratory availability
Testing
BIS application processing
Factory inspection
Closure of observations

Manufacturers with suitable testing arrangements and complete documentation can generally avoid unnecessary delays.

Benefits

Consistent Product Quality

Testing and quality control help maintain consistent polyurethane sole characteristics.

Better Footwear Performance

Properly manufactured soles can provide suitable strength, cushioning, flexibility and wear resistance.

Customer Confidence

Compliance with the applicable standard can improve confidence among footwear manufacturers and customers.

Market Acceptance

Meeting applicable Indian Standard requirements can support market acceptance.

Better Manufacturing Control

Certification encourages systematic production and inspection procedures.

Business Credibility

Compliance with relevant standards can strengthen the manufacturer's credibility in the footwear component industry.

Why Choose Qualitance India

Qualitance India provides BIS Certification Consultancy for footwear, footwear components, rubber, plastic, polymer and industrial products.

For Semirigid Polyurethane Sole as per IS 13893:1994, our consultancy support can include:

Product applicability assessment
IS 13893:1994 requirement review
Product scope assessment
Documentation assistance
Testing requirement identification
Laboratory testing coordination
Sample preparation guidance
BIS application assistance
Factory inspection preparation
Testing equipment guidance
Quality-control documentation
Observation closure support
Certification assistance

We help manufacturers manage the certification process systematically from product assessment through testing and factory inspection.

Complete Process

Product Identification
↓
IS 13893:1994 Requirement Review
↓
Product & Size Assessment
↓
Raw Material & Formulation Review
↓
Manufacturing Facility Assessment
↓
Documentation Preparation
↓
Sample Preparation
↓
Laboratory Testing
↓
BIS Application
↓
Application Scrutiny
↓
Factory Inspection
↓
Observation Closure
↓
BIS Certification / Licence
↓
Applicable BIS Marking

20 FAQs

1. What is a semirigid polyurethane sole?

A semirigid polyurethane sole is a footwear sole made from polyurethane material and designed to provide a balance between rigidity, flexibility and cushioning.

2. What is IS 13893:1994?

IS 13893:1994 is the Indian Standard for Semirigid Polyurethane Sole – Specification.

3. Where are polyurethane soles used?

They are primarily used in footwear and footwear-component applications.

4. What properties are important for polyurethane soles?

Important properties may include density, hardness, tensile characteristics, abrasion resistance, flexing performance and dimensional accuracy.

5. Is hardness tested?

Hardness may be one of the applicable physical characteristics assessed according to the standard.

6. Is density important?

Yes. Density affects the weight and physical performance of polyurethane soles.

7. Is tensile testing required?

Applicable tensile requirements should be evaluated according to IS 13893:1994 and the relevant test methods.

8. Is abrasion resistance important?

Yes. Abrasion resistance is important for footwear soles because they are exposed to repeated contact with walking surfaces.

9. Why is flexing performance important?

Footwear soles repeatedly bend during walking, so suitable flexing performance is important.

10. What raw materials are used?

Polyurethane system components such as polyols, isocyanates and applicable additives may be used.

11. Is factory inspection required?

Factory assessment may form part of the applicable BIS certification process.

12. What documents are required?

Factory documents, product specifications, manufacturing details, raw-material information, testing records and quality-control documents may be required.

13. Are testing facilities required?

Suitable testing arrangements should be available for the applicable product requirements.

14. What can cause testing failure?

Incorrect formulation, poor density, hardness variation, insufficient strength, abrasion failure, flexing problems and dimensional defects can result in non-conformity.

15. Can different sole sizes be included in one certification?

The applicable certification scope and grouping requirements determine the sizes and product varieties that can be covered.

16. How much does BIS Certification cost?

The cost depends on product scope, laboratory testing, factory inspection and other applicable expenses.

17. How long does BIS Certification take?

The timeline depends on documentation, testing, application processing, factory inspection and closure of observations.

18. Can Qualitance India assist with laboratory testing?

Yes. Qualitance India can provide laboratory-testing coordination and related certification assistance.

19. Can Qualitance India help with the BIS application?

Yes. Consultancy can include documentation preparation and BIS application support.

20. Why should manufacturers follow IS 13893:1994?

Following the applicable standard helps manufacturers maintain consistent quality and performance of semirigid polyurethane soles.

Related BIS Certification Services

BIS Certification for PVC Soles
BIS Certification for Rubber Soles
BIS Certification for Polyurethane Footwear
BIS Certification for Footwear Components
BIS Certification for Sports Footwear
BIS Certification for Leather Footwear
BIS Certification for Protective Footwear
BIS Certification for Plastic Footwear Products
ISI Mark Certification
BIS Testing Assistance
BIS Factory Inspection Assistance

Contact Qualitance India

Phone: +91 93106 15170
Email: info@qualitanceindia.com
Website: qualitanceindia.com

For assistance with BIS Certification Consultancy for Polyurethane Sole, Semirigid as per IS 13893:1994, contact Qualitance India for product assessment, documentation, laboratory testing coordination, BIS application and factory inspection support.

Conclusion

Semirigid Polyurethane Soles are important footwear components that provide a combination of strength, cushioning, flexibility and wear resistance.

IS 13893:1994 – Semirigid Polyurethane Sole – Specification provides requirements for the quality and performance of these soles. Manufacturers should maintain proper control over raw materials, polyurethane formulation, moulding, curing, dimensions and applicable physical properties.

The certification process involves product assessment, documentation, sample preparation, laboratory testing, BIS application, factory inspection and compliance with applicable quality-control requirements.

Qualitance India provides BIS Certification Consultancy for Semirigid Polyurethane Soles as per IS 13893:1994, helping manufacturers with product assessment, documentation, testing coordination, BIS application and factory inspection preparation.

Phone: +91 93106 15170
Email: info@qualitanceindia.com
Website: qualitanceindia.com