A metal container is not simply a gas cylinder, and a valve or regulator is not just a supporting part; rather, these items have a direct effect on the safe storage, control, and release of gases. It follows that a minor defect in manufacturing or in quality can have serious consequences.
This explains why India has done the groundwork for several cylinders, valves, and regulators. Scheme-I currently includes LPG cylinders, valves of compressed gas cylinders and valves of medical gas cylinders, LPG valve fittings, and low-pressure LPG regulators in the products that come under the ambit of Bureau of Indian Standards.
The principal problem that companies face while considering market entry is whether or not the product is just a cylinder, valve, or regulator. Therefore, before deciding on an appropriate certification route, verify which IS standards are applicable to the particular product specifications, capacity, and application, and check if any quality-control orders or statutory requirements are applicable.
This blog provides an overview of scenarios covering a wide variety of products that require BIS ISI certification for cylinders, valves, and regulators, along with the calibration process and what manufacturers must do before beginning.
What Products are Subject to Compulsory BIS Certification?
BIS certification is usually voluntary except when the Central Government makes it mandatory by means of a Quality Control Order (QCO) or some other relevant legal requirement.
For cylinders, valves, and regulators, BIS’s current Scheme-I list includes several important standards:
| Product | Relevant Indian Standard |
| Liquefied petroleum gas containers for automotive use | IS 14899 |
| Multifunction valve assembly for permanently fixed liquefied petroleum gas (LPG) containers for automotive use | IS 15100 |
| Welded low carbon steel cylinders exceeding 5 litre Water capacity for low pressure liquefiable gases Part 4 Cylinders for toxic and corrosive gases | IS 3196 (Part 4) |
| Welded low carbon steel gas cylinder exceeding 5 litre water capacity for low pressure liquefiable gases Part1 Cylinders for liquefied petroleum gas (LPG) | IS 3196 (Part 1) |
| Welded low carbon steel gas cylinder exceeding 5-litre water capacity for low pressure liquefiable gases Part 2 Cylinders for liquefiable gases other than LPG. | IS 3196 (Part 2) |
| Valve fittings for compressed gas cylinder excluding liquefied petroleum gas cylinders | IS 3224 |
| Yoke Type Valve Connection for Small Medical Gas Cylinders | IS 3745 |
| Welded low carbon steel cylinders for low pressure liquefiable gases not exceeding 5 litre water capacity | IS 7142 |
| Refillable Seamless steel gas cylinders Part 1: Normalized steel cylinders | IS 7285 (Part 1) |
| Refillable Seamless steel gas cylinders Part 2: Quenched and tempered steel cylinders with tensile strength less than 1100 MPa (112 kgf/mm2) | IS 7285 (Part 2) |
| Valve fittings for gas cylinder valves for use with breathing apparatus | IS 7302 |
| Welded and seamless steel dissolved acetylene gas cylinders | IS 7312 |
| Valve fittings for use with liquefied petroleum gas cylinders of more than 5 litre water capacity Part 2 Valve fittings for newly manufactured LPG cylinders | IS 8737 |
What is the Importance of BIS Certification for These Products?
The main aim is to ensure safety and compliance. The cylinders have to be capable of withstanding high pressure, and the valves and regulators are used to control the flow and pressure of the gas. It is therefore essential that their performance stays within the specified technical requirements.
BIS certification helps establish that:
- It meets the Indian Standard that applies to it
- An evaluation has been made of the manufacturing and testing capabilities
- Processes for quality control are required and already exist
- Products are subject to testing and inspection as required
- Products that have been certified may display the relevant BIS Standard Mark
- Continuous surveillance can be used to keep people in line
What Standards Should Manufacturers Examine?
The correct Indian Standard (IS code) will vary according to the particular product and its intended use.
1. LPG Cylinders
Part 1 of IS 3196 applies to welded low-carbon steel LPG cylinders having a water capacity in excess of 5 litres; other applications are covered by Parts 2 and 4 of IS 3196.
2. Gas Cylinder Valves
The valves for compressed gas cylinders are covered by IS 3224, with the exception of LPG cylinders; other specialised valves may be the subject of IS 3745, IS 7302, or IS 8737.
3. LPG Regulators
The IS 9798 standard relates to low-pressure regulators for LPG mixtures and is part of the relevant BIS certification requirements.
Before applying for certification, manufacturers must carry out a BIS Product Classification and IS Code Assessment.
What are the Basic Requirements for Obtaining BIS ISI Certification?
If manufacturers are to obtain BIS ISI Certification in India, they must have in place the necessary production, quality-control, and testing facilities in accordance with the relevant Indian Standard.
Key requirements include:
- The relevant IS code and product specifications.
- Proper manufacturing setup and process controls.
- Quality-control and testing facilities.
- Equipment for testing and measuring that has been calibrated.
- Skilled technical and quality-control staff.
- The records for raw materials, production, and testing.
- The product drawings and technical documents required.
- Adhering to the relevant Scheme of Testing and Inspection (STI).
How is the BIS Certification Process Carried Out for Cylinders, Valves, and Regulators?
The BIS Certification Process for Cylinders, Valves, and Regulators generally follows these stages:
Step 1: Identify the Applicable Indian Standard
Find the Indian Standard (IS code) that applies to the cylinder, valve, or regulator.
Manufacturers must:
- Identify product requirements
- Produce the products in accordance with the relevant BIS standard
- Adjust the production process as needed
Step 2: Product Testing and Documentation
The product is tested in a laboratory that is recognised by BIS or accredited by NABL, as relevant.
This includes:
- Product sample testing
- Preparation of technical documents
- A compilation of details regarding factories and manufacturing
- Getting the BIS application ready
Step 3: BIS Application Submission
Fill in the BIS application online together with the necessary documents and the relevant fees.
Key documents include:
- Test reports
- Factory details
- Technical and quality control documents
- Applicable government fees
Before proceeding any further, BIS reviews the application.
Step 4: BIS Factory Inspection
BIS officials may inspect the manufacturing facility to verify:
- Manufacturing process
- Production facilities
- Quality control system
- Testing facilities
Samples can also be taken when the inspection is being carried out.
Step 5: Sample Testing and Lab Report
The samples are tested at the specified laboratory in accordance with the relevant Indian Standard, and the Laboratory Test Report (LTR) is then sent to BIS for assessment.
Step 6: Closure of Non-Conformities
If any deficiencies are identified, the manufacturer must:
- Take corrective action
- Send any further documents or provide further clarification
- Deal with any product or testing non-conformities
- Complete re-testing, if required
Step 7: Payment of Applicable Fees
After successful completion of the applicable requirements, the manufacturer pays the prescribed:
- BIS licence fee
- An annual licence fee, if applicable
- Marking fee, where applicable
Step 8: Grant of BIS Licence
When BIS has fulfilled its testing, inspection, and compliance requirements, it will issue the BIS licence; the manufacturer may then use the ISI Mark on the certified products in accordance with the BIS marking requirements.
Documents Required BIS Certification for Cylinders, Valves, and Regulators
The exact documentation depends on the applicable standard and certification scheme, but manufacturers should generally prepare:
- Basic data of the manufacturing unit and the product segment
- Evidence of the manufacturing unit’s address (for example, a deed showing ownership or a utility bill, etc.)
- Trademark registration certificate (if brand name is used and registered)
- Manufacturing licence / statutory approvals (where relevant – such as pollution
- control and industry-specific approvals)
- Product drawings/design schematics
- Installed manufacturing capacity
- List of materials used, and specification
- Details of manufacturing machinery and equipment
- The layout plan of the factory, including production and testing areas, and storage areas
- A detailed flow chart of the manufacturing process is provided
- In-house test equipment and calibration information
- Information about the quality control personnel
- Factory organisational chart
BIS ISI Certification Cost for Cylinders, Valves, and Regulators
The price for BIS ISI Certification of cylinders, valves, and regulators is determined by various factors, including the relevant Indian Standard, the testing requirements, the factory inspection, the production capacity, and the documentation.
| Cost Component | Estimated Cost |
| BIS Application Fee | ₹1,000 |
| Product Testing Charges | ₹15,000 – ₹2,50,000 |
| Factory Inspection Charges | ₹7,000 |
| Annual Licence Fee | ₹1,000 |
| ISI Marking Fee | As per applicable BIS norms |
| Consultancy Charges | ₹50,000 |
The real costs will depend on the product in question, the BIS requirements that apply, the fees charged by the laboratory, and the present government fee schedule.
BIS ISI Certification Timeline for Cylinders, Valves, and Regulators
The BIS ISI Certification process usually takes about 30 to 40 working days, the length depending on the testing, the documentation, the inspection, and the BIS review.
In some instances, the process for certain AIF products may last as long as 180 days.
Delays may happen if the documentation is incomplete. They can also occur if the product fails testing, if the factory is not ready, or if corrective actions are still pending.
BIS ISI Certification Validity and Renewal for Cylinders, Valves, and Regulators
The BIS ISI licence is normally valid for a maximum period of five years, on condition that the relevant BIS terms and conditions are adhered to. Manufacturers have to make sure that the licence is renewed in time and that they continue to comply with the appropriate Indian Standard if they are to remain legally entitled to use the ISI Mark on their certified products.
Common Challenges Faced by Manufacturers
It can be difficult for Indian manufacturers to obtain BIS ISI Certification even if their product is technically in compliance, because their factory is not properly prepared.
Common challenges include:
- Choosing the incorrect IS standard
- Inadequate testing infrastructure
- Missing calibration records
- Incomplete quality-control procedures
- Gaps in manufacturing-process documentation
- Not keeping proper records of inspections
- Variations of the product outside the scope of the proposed licence
- Non-conforming test results
- Difficulty meeting lot-inspection requirements
- The response to the BIS observations is delayed
It is possible to pick up on these problems early by carrying out a gap analysis that is specific to the product before applying for it.
What Attracts You to Choosing UMSPCS for BIS Certification for Cylinders, Valves, and Regulators?
At UMSPCS, we assist manufacturers with navigating BIS Certification India by adopting a method that is specific to each product and focuses on the documentation.
With 6+ years of compliance experience and exposure to 600+ product compliance requirements, our support can include:
- Identification of the applicable IS standard and QCO requirements
- Product and certification-scope assessment
- Documentation and technical-file review
- Factory-readiness assessment
- Testing and laboratory coordination
- BIS application preparation and submission support
- Assistance during factory inspection
- Technical query and deficiency management
- Support with licence scope and product variations
- Guidance on post-certification and surveillance requirements
- Help foreign manufacturers to meet the requirements of the BIS Foreign Manufacturers Certification Scheme (FMCS).
Conclusion
Are cylinders, valves, and regulators subject to BIS ISI Certification in India? Most probably yes, if the products fall under the purview of the mandatory certification scheme. However, more specifically, the requirement depends upon the type of product, the concerned Indian Standard, its capacity, its intended purpose, and the applicable legal provisions.
The reason is that these products are of paramount importance in gas containment, pressure management, and safety. Hence, organisations must treat the test of BIS certification as something more than just a mere administrative process. Product introduction should focus on all applicable parameters, including applicable regulations, production site, testing conditions, required documents, and process monitoring.
What does the submission of BIS ISI certification for cylinders, valves, and regulators look like?
Contact UMSPCS to resolve your compliance issues.
Read more also: What Could Stop Italian Furniture & Electronics from Entering India
FAQs
- Is it necessary to have BIS ISI Certification for gas cylinders in India?
Yes, there are several types of gas cylinders that must undergo mandatory BIS certification processes, as such products fall under the scopes of IS 3196, IS 7142, and IS 7285. The requirements may differ depending on the type of cylinder and standards.
- Do LPG valves need BIS certification?
BIS does include LPG valve fittings among those covered by its mandatory certification scheme under standards such as IS 8737 and IS 8776.
- Is it necessary to have BIS Certification for LPG regulators?
The Low-pressure LPG regulators covered by IS 9798 are included in BIS’s list of those which must be certified.
- What BIS standard does an LPG cylinder have to meet?
The correct standard varies according to the type and capacity of the cylinder; for instance, IS 3196 (Part 1) applies to welded low-carbon steel LPG cylinders with a water capacity over 5 litres, whereas IS 7142 applies to certain cylinders having a capacity of 5 litres or less.
- Is it possible for an Indian manufacturer to apply directly for BIS ISI Certification?
Indian manufacturers can obtain BIS product certification via the specified online procedure, on the condition that they satisfy the relevant requirements concerning manufacturing, testing, quality control, and the products in question.
- Do cylinders, valves, and regulators have to undergo lot inspections?
The BIS does, in fact, specify that gas cylinders, valves, and regulators are among the products that are subject to lot inspections.
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