MALLEABLE IRON SHOTS AND GRITS IS 9139: 1979

BIS CERTIFICATION FOR MALLEABLE IRON SHOTS AND GRITS IS 9139: 1979

In today's competitive landscape, maintaining market presence without a certified, high-quality product can be challenging. Obtaining a BIS license may also be essential for selling products in the Indian market. To achieve BIS certification and ensure product quality, manufacturers must adhere to the specified Indian standards.

Let's delve deeper into at IS 9139: 1979 for Malleable iron shots and grits.

This standard outlines the criteria for malleable iron shot and grit intended for use as abrasives in shot blasting machines within foundries.

Malleable iron shot is classified based on the shot number, denoting the aperture size of the retaining screen in thousandths of millimeters, labeled as S-M. Malleable iron grit is graded by the grit number, representing the aperture size of the retaining screen in hundredths of millimeters, identified as G-M.

By employing a suitable heat treatment process, malleable iron shot and grit are manufactured through the malleabilization of white iron shot and grit. It's imperative that the particle shape and size conform to standard specifications. Upon testing as per the specified method, the material must exhibit the chemical composition outlined in the standard. The average hardness of the particles should fall within the range of 200 to 300 HV. Additionally, malleable iron shot and grit must possess a microstructure characterized by tempered carbon nodules within a matrix predominantly comprising pearlitic or tempered martensitic phases.

TESTS

The subsequent test must be conducted for Malleable iron shots and grits.

Chemical Size Test
Hardness Test
Microstructure Characteristics Test

LABELLING AND MARKING

Every container should display the manufacturer's name or trademark along with the size and material type. The ISI mark must be affixed to the material, ensuring compliance with all specification requirements. Manufacturers are required to acquire a BIS license from the Bureau of Indian Standards to utilize the standard mark (ISI Mark). This license is granted following a thorough assessment of manufacturing infrastructure, quality control measures, testing capabilities, and manufacturing processes.

PROCESS FOR BIS ISI MARK CERTIFICATION

BIS CERTIFICATION PROCESS

Acquiring a BIS license requires a comprehensive review of manufacturing infrastructure, quality control abilities, testing resources, and production procedures. This thorough assessment guarantees that products not only adhere to regulations but also prioritize consumer safety and reliability.

NOTE:

For comprehensive guidance on the BIS ISI Certification process, please explore:

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