Gypsum Building Plaster is manufactured in such a way that it forms a binding coating layer that sets evenly, thus making it applicable in wall and ceiling finishings not only in houses but also in commercial buildings. They are highly accepted in all those areas where a flat surface is needed along with durability and even finishing qualities, which greatly depend on the chemical composition, fineness, and setting ability of the plaster.
The process of BIS certification according to IS 2547 (Part 1): 1976 focuses primarily on testing both the composition and properties of the material for verification purposes. Common tests include the setting time test, sieve fineness test, transverse strength test, soundness test, and expansion test on setting. Chemical analysis of the material's composition such as SO₃, CaO, and loss on ignition, is also another way of verifying the consistency of the plaster.
What is IS 2547 (Part 1): 1976
This is the Indian Standard for gypsum building plaster. It mentions the composition and quality control measures to ensure consistent performance and suitability for interior plastering. As per the BIS (Bureau of Indian Standards), this plaster is:
- Verified for material composition
- Assessed for setting time
- Evaluated for compressive strength
- Tested for consistency
Who can apply for Wall Plaster BIS Approval
BIS authorisation under IS 2547 (Part 1): 1976 is required for businesses involved in manufacturing, importing, or supplying Gypsum Wall Plaster in India.
Applicable to:
- Manufacturers (India) - Must get BIS approval if the gypsum building plaster is covered under QCO.
- Foreign Manufacturers - Need certification to export the product to India.
- Importers/Brand Owners - Must ensure that the products are BIS-certified before sale.
- Sellers/Distributors - Should only sell certified construction plaster.
Testing and Inspection Requirements
To ensure uniform quality and dependable application in interior plastering works, the Bureau of Indian Standards outlines the minimum requirements under IS 2547 (Part 1): 1976. This certification ensures that manufacturers produce building plaster with controlled composition, proper setting time, and consistent finishing properties.
The BIS testing parameters and quality checks for the plaster are listed below:
Complete Process to get BIS License for Gypsum Wall Plaster
The BIS Authorisation process ensures that the plaster meets the required standards for efficient operation. This process is set by the Bureau of Indian Standards (BIS) and includes the following steps:
- Online Registration: Manufacturers register on the BIS Manak portal by submitting company, factory, and product details. Foreign manufacturers must appoint an Authorized Indian Representative (AIR).
- Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories for chemical composition, fineness, setting time, strength properties and material conformity.
- Application Submission: The application is submitted along with test reports, technical documents, and factory details. Foreign manufacturers must also submit AIR-related documents.
- Factory Inspection: BIS officials conduct an on-site evaluation of the manufacturing unit to verify the production process, safety measures, and quality control system.
- Grant of BIS License: Upon satisfactory compliance with all requirements, BIS grants the certification license under Scheme-I.
- Use of ISI Mark: After obtaining approval, the manufacturer is authorized to use the ISI Mark on the product along with a valid CM/L number, confirming that the product meets BIS standards.
IS 2547 (Part 1): 1976 Approval Documents
| Document Category | Documents Required |
|---|
| Basic Details | GST Certificate, Email ID & Contact Number, Factory & Office Address, Rent Agreement / Lease Deed (if applicable),Partnership Deed (if applicable for partnership firms) |
| Manufacturing Details | List of Machinery, Process Flow Chart, Factory Layout Plan |
| 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, Product Printing / Marking Details |
| Management Details | Top Management Details, BIS Communication Contact Person |
| 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 |
| Foreign Manufacturer Requirement | Appointment of Authorized Indian Representative (AIR) for BIS coordination and compliance in India |
Foreign manufacturers are required to appoint an Authorized Indian Representative (AIR) in India. The representative is the local point of contact for the Bureau of Indian Standards (BIS) and is responsible for handling all regulatory, compliance, and communication requirements related to product certification in India.
Marking Requirements & License Validity
Marking Requirements
Once the manufacturer obtains the BIS licence, the ISI Mark for gypsum plaster must be clearly and permanently displayed on the product or its packaging. Apart from the ISI Mark, certain other details like the name of the manufacturer along with their license number, CM/L, must also be stated. Further details are mentioned below:
| Requirement | Details |
|---|
| ISI Mark | Indicates that the product is BIS certified and conforms to standards |
| Standard Number | IS 2547 (Part 1): 1976 |
| CML Number | Certification Marks License (CML) number issued by BIS |
| Manufacturer Details | Name of manufacturer or registered trademark |
| 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.
What is the BIS License Validity for Construction Plaster
| 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 |
| Surveillane | 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 |
Fees for Interior Wall Plaster BIS Approval
The cost of BIS Approval for building plaster includes charges for application, inspection, license, testing, and marking. These fees are paid to BIS as per Scheme I guidelines.
| Charge Type | Indian Manufacturers | Foreign Manufacturers |
|---|
| Application Fee | INR 1,000 | USD 15 |
| Audit Charges | INR 7,000 | USD 3,200 – 5,900 |
| License Fee | INR 1,000 | USD 15 |
| Marking Fee | As applicable | As applicable |
| Testing Charges | As applicable | As applicable |
| EVTL India Consultancy Fee | As per actual | As per actual |
Note:
- Application fee for foreign manufacturers is payable via SWIFT (SAARC countries may pay in INR with applicable GST).
- Audit charges for foreign manufacturers vary based on country/location.
- The marking fee is determined based on the product category and production volume (MSME benefits may apply).
- Testing charges are to be paid directly to BIS-recognised laboratories.
- Consultancy fees can vary depending on product type and factory location.
Conclusion
The results of construction works related to interior finishing depend greatly on the plaster material. The adherence to IS 2547 (Part 1): 1976 standard is responsible for providing consistency in finish results, better adhesiveness and a lower probability of developing cracks or irregularities. As far as the application is concerned, it is possible to expect higher efficiency of work, smoother walls, and reduced corrections for errors.
Manufacturers can avail the professional services of EVTL India for their Gypsum Building Plaster. They help manufacturers to get their products certified by providing assistance related to all technical documentation and testing of the product as per the BIS guidelines.
