UMSPCS-Compliance

Flexible Water Storage Tank for Agriculture and Horticulture Purposes

Indian Standard Compliance

BIS Quality Control Order for Flexible Water Storage Tank for Agriculture and Horticulture Purposes

Conformity Assessment & Regulatory Compliance

IS 17729:2021

27 Sep 2023

28 Mar 2024

Flexible water storage tanks are employed in agricultural and horticultural uses for storing water intended for irrigation and for other farming-related needs. They are especially useful in remote and hilly regions since it may be difficult there to install rigid storage tanks or to build concrete water reservoirs. The tanks' flexibility and portability mean that they are appropriate for sites where water storage facilities have to be transported or put in place in accordance with the site conditions.

The Indian Bureau of Standards (BIS) has established the quality and performance requirements for these products by means of the standard IS 17729:2021 - Agro-Textiles - Flexible Water Storage Tank for Agricultural and Horticultural Purposes - Specification. This standard sets out the construction details and the performance requirements for flexible water storage tanks which are mainly intended for the storage of rainwater for agricultural and horticultural uses.

Adhering to the relevant Indian Standard enables manufacturers to keep their product quality consistent and to show that they conform to the required specifications for regulated agro-textile products.

Requirements of Quality Control Order

The flexible water storage tanks which are covered by the Agro Textiles (Quality Control) Order are required to comply with the mandatory conformity requirements within the relevant BIS certification system, and the product is included in the BIS Scheme-I product certification list under IS 17729:2021.

Manufacturers, importers, and other people working with notified goods must adhere to BIS certification requirements. Therefore, it is important for businesses to keep themselves updated with the latest notifications and requirements regarding the manufacturing, importing, supplying, and selling of these goods in compliance with all relevant rules.

Key Requirements for Flexible Water Storage Tank

Important product characteristics under IS 17729:2021 may include:

  • Raw material requirements for the inner and outer layers
  • Construction and manufacturing requirements
  • Tank dimensions and capacity
  • Tensile strength and elongation at break
  • Ageing resistance of the inner layer
  • Dart impact strength
  • Moisture vapour and oxygen transmission rates, where applicable
  • Retention of tensile strength after UV exposure
  • Seam strength and seam strength after UV exposure
  • Environmental stress cracking resistance
  • Cold crack resistance
  • Puncture strength
  • Ultrasonic leak testing
  • Packaging, marking and dispatch requirements

The standard lays down the requirements for both the inner and outer layers as well as for the entire storage tank; the product manual from BIS lists the testing parameters such as tensile strength, elongation, ageing, dart impact strength, UV-related performance, seam strength, puncture strength, and ultrasonic leak testing.

Uses of Flexible Water Storage Tank

Water reservoirs that come with flexibility are primarily utilized in the storage of rainwater in productive lands and gardens, particularly in isolated, hilly, or uneven places where conventional forms of water storage are impractical.

Thanks to their flexible body, these tanks can be transported and set up in different locations, so they can be utilized in agricultural activities that require easily available water storage options. It is worth taking into account that when checking a tank’s intended application, one should consider such aspects as its capacity, material properties, strength, and leakproofness.

Conformity Assessment under BIS Certification

Where BIS certification is required, manufacturers are required to carry out the relevant conformity assessment procedure, including product testing, the preparation of documentation, and a factory assessment.

The standard IS 17729:2021 falls within the scope of Scheme-I of the BIS (Conformity Assessment) Regulations of 2018; the BIS product manual offers advice to applicants and licence holders regarding sampling, the testing equipment, inspection, quality control, and marking requirements.

Significance of Conformity

By complying with IS 17729:2021 and relevant QCOs, the manufacturers can provide evidence that the flexible water storage tanks meet the requisite specifications for the materials used, their construction, as well as their performance.

The manufacturers need to maintain adequate manufacturing controls, testing documentation, calibration processes, along with documents relating to the raw material conformity. The details regarding the marking as specified by the BIS manual encompass details such as the identification of the manufacturer, type and size of the tank, and the batch or lot number, amongst others.

Timeline for BIS Certification

The time taken to secure BIS Certification for Flexible Water Storage Tank in accordance with IS 17729:2021 will depend on the documentation, the product testing, the factory assessment, and the processing carried out by BIS.

As a general indicative timeframe:

  • Indian Manufacturers: Approximately 30 days
  • Foreign Manufacturers: Approximately 180 days

These are only approximate figures and not guaranteed times for processing. The actual time taken might vary according to how complete the application is, the laboratory's availability, the factory's assessment needs, and any questions or further explanations asked during the certification process.

Conclusion

The flexible water storage tanks, as agro-textile goods, have the capability to store rainwater and promote agriculture and horticulture, especially in areas where there are difficulties in providing conventional storage. The Indian standard IS 17729:2021 provides specifications regarding their characteristics, features, and performance.

Manufacturers, suppliers, and importers must make sure of compliance with Indian Standard requirements, Quality Control Order, and BIS conformity provisions before they manufacture intermediate products, receive them, or supply them.

Companies that need information on BIS standards, Quality Control Order, certifications, etc., may always turn to UMSPCS in order to receive professional help and consultations in the field of regulations and standards. Also, get to know more about QCO Polypropylene Split Film Monofilament and Multifilament PP2

Frequently Asked Questions (FAQs)

 

IS 17729:2021 is a standard that establishes certain specifications for flexible tanks for agricultural and horticultural uses regarding production and functionality.

 

The standard provides many specifications regarding the material, construction, and functionality of the tank, making it possible for companies to produce tanks of the same high quality.

 

The document presents various criteria for materials, construction, dimensions, performance of both inner and outer layers, puncture resistance testing, testing for leakage, marking, etc.

 

 

When the applicable BIS conformity assessment scheme requires it, the tanks and their materials must be assessed in accordance with the relevant provisions of IS 17729:2021 by means of the prescribed testing procedure.

 

According to the product manual provided by BIS, it specifies six types classified based on their capacities: Type I (2 kL), Type II (6 kL), Type III (12 kL), Type IV (25 kL), Type V (50 kL), and Type VI (100 kL), respectively. Furthermore, the necessary license provisions applicable to the respective product must be checked.

 

Foreign manufacturers who are eligible can apply under the relevant BIS certification framework and meet the extra requirements that apply to manufacturers based overseas, including the Authorized Indian Representative provisions where these are required.

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