Learn how to get BIS certification for HDPE/PP laminated woven sacks used in mail sorting, storage, and transport. This article explains the IS 17399 standard, ISI mark rules, testing requirements, and the steps to get certified for postal packaging with Standphill India

In an era where logistics and postal services play a pivotal role in both public and private sectors, the safe and efficient handling of mail is a priority. To ensure durability, reliability, and efficiency in the storage, sorting, and distribution of mail, HDPE/PP laminated woven sacks are commonly used. These sacks are required to meet specific quality and safety standards defined by the Bureau of Indian Standards (BIS) under IS 17399.

This article offers a detailed overview of the BIS certification process for laminated woven sacks under IS 17399, including why it's required, what the standard covers, and how manufacturers can obtain the ISI mark for their products.

What is IS 17399?

IS 17399:2020 is the Indian Standard that lays down the requirements for laminated HDPE or PP woven sacks used for mail sorting, storage, transportation, and distribution.

The standard ensures that the sacks used in the postal and logistics industry meet specific parameters for:

Material and construction

Size and dimensional tolerances

Strength and durability

Resistance to environmental conditions

Workmanship and finish

These sacks are used to carry various types of mail—parcels, letters, and documents—ensuring they remain intact, secure, and organized during transit.

Why ISI Certification is Required

ISI certification under BIS is mandatory for HDPE/PP laminated woven sacks used in mail and postal applications. This requirement is enforced to ensure a uniform quality standard across manufacturers and safeguard the efficiency of mail distribution networks.

Key Reasons Why ISI Certification Matters:

Assures Quality and Consistency

Sacks with ISI marks comply with defined quality standards, minimizing risks of tearing, leakage, or damage to postal items.

Regulatory Requirement

Government procurement agencies such as India Post and logistics departments often require certified products under IS 17399.

Supports Operational Efficiency

High-strength laminated sacks help optimize the mail handling process—improving sorting, storage, and transport workflows.

Reduces Risk of Mail Loss or Damage

Certified sacks provide moisture resistance and load durability, protecting the contents from external elements and rough handling.

Key Features and Requirements of IS 17399

The standard specifies the following essential characteristics for certified sacks:

Material: Virgin or recycled HDPE/PP material with lamination to improve durability and moisture resistance.

Dimensions: Standardized sizes suitable for mail handling operations, with tolerances specified for length, width, and thickness.

Lamination: Both sides must be laminated to prevent ink smudging, tearing, and damage from liquids or abrasion.

Seams & Stitching: Strong stitching with uniform seam width to prevent splitting under load.

Load Carrying Capacity: Should meet prescribed load-bearing tests for handling heavy mail contents.

UV Stability & Weather Resistance: To ensure performance in different climatic conditions.

Marking: Every sack must be clearly marked with the manufacturer’s details, batch number, and the ISI certification mark as per BIS guidelines.

BIS Certification Process for IS 17399

Manufacturers seeking certification must follow the BIS process outlined below:

1. Apply Online

Submit your application through the BIS Manak Online Portal under the Product Certification Scheme – ISI Mark Scheme.

2. Documentation

Provide the following documents:

Company registration certificate

Factory license

GST number

In-house testing facility details

Quality manual (if available)

Layout plan of the factory

3. Sample Collection & Testing

BIS officials will collect product samples from the factory or market. These are tested in BIS-approved labs for compliance with IS 17399.

4. Factory Inspection

An on-site inspection is conducted to assess:

Quality control systems

Testing infrastructure

Manufacturing process flow

Compliance with statutory norms

5. Grant of ISI License

Upon successful completion of testing and inspection, BIS grants the manufacturer a license to use the ISI mark on the sacks.

Validity & Renewal of License

The initial BIS license is valid for 1 year.

Manufacturers must apply for annual renewal by submitting:

Updated test reports

Compliance records

Production and sales data

Renewal fee

Failure to renew can result in suspension or cancellation of the license.

Penalty for Non-Compliance

Under the BIS Act, 2016, manufacturing or selling sacks covered under IS 17399 without proper certification is a punishable offense. Penalties may include:

Monetary fines

Seizure of non-compliant products

Legal action

Business suspension

Conclusion

BIS Certification under IS 17399 is essential for manufacturers of HDPE/PP laminated woven sacks used in the mail and logistics sector. It ensures that the sacks meet necessary performance and durability standards, facilitating secure and efficient postal operations. With the growing demand for reliable mail transport systems in both public and private sectors, ISI-certified sacks play a critical role in maintaining quality and trust.

Whether you’re a manufacturer supplying to postal agencies or a procurement officer sourcing certified mailbags, understanding the BIS certification process is key to ensuring regulatory compliance and operational excellence.

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