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- BIS Certification for Laboratory Glassware – One – Mark Volumetric Flasks ensures accuracy, durability, and traceability as per IS 915:2012.
- The ISI mark confirms volumetric accuracy and safety in scientific laboratories.
- Diligence Certification guides manufacturers from testing to BIS license approval and renewal.
Introduction
In 2024, a Mumbai-based manufacturer of scientific glassware faced shipment rejection from a leading European distributor.
Their One-Mark Volumetric Flasks, though manufactured with premium borosilicate glass and in-house accuracy tests, lacked the BIS Certification under IS 915:2012. The client refused the consignment, citing non-compliance with Indian quality assurance norms.
This incident highlights a growing truth in India’s lab glassware industry — without the ISI mark, manufacturers risk losing both domestic tenders and export opportunities.
Today, BIS Certification for Laboratory Glassware – One – Mark Volumetric Flasks isn’t optional — it’s a legal and quality requirement that assures users of precision, reliability, and conformity to IS 915:2012.
Diligence Certification, a trusted BIS Certification Consultant, provides end-to-end assistance — from testing and factory audits to documentation and license renewals.
What is IS 915:2012?
IS 915:2012, published by the Bureau of Indian Standards (BIS), specifies the requirements and testing methods for Laboratory Glassware – One – Mark Volumetric Flasks.
These flasks are precision instruments used in analytical chemistry, quality testing, and research laboratories for accurate volume measurements. The standard ensures that each flask delivers exact capacity at a specified temperature, maintaining consistency across manufacturing batches.
Key Technical Parameters under IS 915:2012
| Parameter | Description |
| Material | Made from chemically resistant borosilicate or soda-lime glass with high transparency. |
| Capacity Accuracy | Tolerance limits are set (e.g., ±0.05 ml for 10 ml flasks, ±0.20 ml for 100 ml). |
| Graduation Mark | Clear, permanent, and easy-to-read calibration line for meniscus alignment. |
| Neck and Stopper Fit | Precision-ground joints ensuring leak-proof closure. |
| Thermal Performance | Flask must withstand repeated heating/cooling cycles without deformation. |
| Marking | Each flask must display capacity, temperature (usually 27°C), class, and manufacturer’s code. |
Why BIS Certification for Laboratory Glassware – One – Mark Volumetric Flasks is Essential
1. Legal Requirement under BIS Act, 2016
Manufacturers cannot sell or distribute volumetric flasks without BIS Certification under IS 915:2012. Non-compliance attracts penalties or closure under Section 17 of the BIS Act.
2. Accuracy and Quality Assurance
The certification validates the volumetric accuracy and glass quality, ensuring safety for critical laboratory measurements.
3. Market Access and Tender Eligibility
Government laboratories, educational institutions, and testing agencies procure only ISI-marked volumetric flasks, making certification essential for business continuity.
4. Global and Export Compliance
International buyers recognize BIS as a quality assurance system equivalent to ISO, boosting credibility in global trade.
5. Brand Reputation and Customer Confidence
The ISI mark builds trust and distinguishes certified manufacturers from low-quality market competitors.
Understanding the ISI Mark for Laboratory Glassware (IS 915:2012)
The ISI Mark on Laboratory Glassware is a symbol of accuracy, standardization, and reliability.
For One-Mark Volumetric Flasks, it ensures that each unit conforms to critical parameters such as:
- Dimensional accuracy and calibration precision
- Clear and permanent graduation lines
- Correct thermal and chemical resistance
- Leak-proof neck-stopper fit
- Traceable manufacturer batch number
Each ISI-marked flask carries a unique license number (CM/L) that allows traceability back to the certified manufacturer.
Benefits of BIS Certification
| Benefit | Description |
| Legal Compliance | Mandatory as per BIS Act, 2016 |
| Measurement Accuracy | Ensures volumetric precision in lab experiments |
| Market Trust | Builds brand credibility with scientific users |
| Tender Eligibility | Required for government lab supplies |
| Export Qualification | Globally recognized quality benchmark |
| Consumer Safety | Prevents errors in critical laboratory testing |
Eligibility Criteria for BIS Certification
To apply for BIS Certification for Laboratory Glassware – One – Mark Volumetric Flasks, manufacturers must:
- Have a registered manufacturing entity (Company, LLP, or Proprietorship).
- Operate a production facility with precision glass blowing and calibration setup.
- Maintain internal testing equipment for dimensional and volumetric accuracy.
- Employ trained quality control personnel.
- Allow BIS officials to conduct factory audits and sample verification.
Step-by-Step Process for BIS Certification (IS 915:2012)
1. Identify Applicable Standard
Confirm your product type falls under IS 915:2012 – Laboratory Glassware: One-Mark Volumetric Flasks.
2. Submit Online Application
Apply through the Manak Online BIS portal, submitting all business, technical, and manufacturing details.
3. Product Testing at BIS-Recognized Lab
Samples are tested for volume accuracy, graduation visibility, and thermal stability at a BIS-approved laboratory.
4. Factory Inspection
BIS officers inspect the production facility to verify calibration methods, equipment accuracy, and process control.
5. Grant of BIS License
Once both factory and product meet the standard requirements, BIS issues a Certification Mark License (CM/L) authorizing ISI marking.
6. License Validity and Renewal
- Initial validity: 2 years
- Renewal: Up to 5 years based on consistent compliance and testing reports.
Documents Required for BIS Certification
| Category | Documents Required |
| Company Documents | Incorporation Certificate, GST, MSME/Udyam Registration |
| Factory Details | Layout Plan, Equipment List, Process Flow Diagram |
| Testing Evidence | BIS Lab Test Reports (IS 915:2012) |
| Quality Control | Calibration Certificates, Internal Test Records |
| Technical Information | Material Composition, Design Drawings, Accuracy Report |
Common Challenges Faced by Manufacturers
- Non-uniform calibration systems leading to test failures.
- Incomplete documents during application submission.
- Delayed lab testing due to limited BIS-approved facilities.
- Lack of understanding of inspection procedures.
- Rejections due to mismatch in marking or engraving specifications.
Diligence Certification minimizes these risks with structured pre-assessment, documentation review, and liaison support with BIS authorities.
Cost of BIS Certification
| Cost Component | Description |
| Application Fee | Paid during online submission on BIS portal |
| Testing Fee | Laboratory testing cost for volumetric accuracy and physical checks |
| Inspection Fee | BIS officer’s visit and verification expenses |
| License Fee | Payable to BIS for ISI mark usage |
| Renewal Fee | Payable every 2–5 years upon license renewal |
Total cost depends on product category, plant capacity, and test parameters.
Diligence Certification provides transparent pricing estimates before filing.
Why Choose Diligence Certification
Diligence Certification is one of India’s leading BIS Certification Consultants, assisting laboratory and scientific equipment manufacturers in obtaining certification under IS 915:2012.
Our Expertise
- Decade-long experience with glassware and lab equipment categories
- Direct coordination with BIS-recognized labs
- Streamlined testing and inspection process
- Document preparation and compliance support
- Post-license maintenance and renewals
Key Takeaway
BIS Certification for Laboratory Glassware – One – Mark Volumetric Flasks isn’t just about compliance — it’s about accuracy, safety, and trust.
The ISI mark under IS 915:2012 verifies that every volumetric flask meets India’s scientific precision standards.
Partnering with a reliable consultant like Diligence Certification ensures faster testing, zero rejections, and long-term license maintenance.
Conclusion
Obtaining BIS Certification for Laboratory Glassware – One – Mark Volumetric Flasks (IS 915:2012) validates that your product meets India’s precision and safety benchmarks.
The ISI mark enhances your market access, builds scientific credibility, and ensures legal compliance for both domestic and export purposes.
With Diligence Certification’s expert consultancy, manufacturers can achieve seamless certification, ensuring that every volumetric flask leaving the factory stands for trust, accuracy, and compliance.
Frequently Asked Questions
What is laboratory glassware?
Laboratory glassware refers to glass tools such as flasks, beakers, test tubes, and pipettes employed in scientific experiments.
Why is accuracy important in laboratory glassware?
Accuracy is important to obtain accurate measurements for the results of experiments.
What materials are used to make lab glassware?
Laboratory glass is made of borosilicate or soda-lime glass which is also chemical and heat resistant.
What is a One-Mark Volumetric Flask?
One-mark volumetric flasks are those with one mark that show an accurate volume.
Why choose ISI-marked glassware?
Because ISI-marked glassware assures that the calibration is accurate, (and) that the quality is specified to the Indian standards.
Can lab glassware be used with heat?
Yes, high-quality lab glassware will resist thermal shock if you observe good laboratory practices, and can be heated repeatedly.
How to maintain laboratory glassware?
Provide a thorough cleaning, avoid thermal shock by not moving glassware from hot to cold or cold to hot, and have the glassware returned to a safe place when not in use.
What is IS 915:2012?
This is the Indian standard for the requirements of a One-mark volumetric flask.
Is BIS Certification mandatory for laboratory glassware?
Yes, under the IS 915:2012 an issuer will need to apply for a license to sell and test IS 915:2012 glassware legally in India.
Who provides BIS Certification consultancy?
Companies such as Diligence Certification will help you with testing the product and gain certification and licensing.
