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In this competitive scenario, it isn't easy to survive in the market without a standard quality and certified product. BIS license may also be required to sell products in the Indian market.

To get BIS certification and produce a standard quality product, the manufacturer must ensure that their product must follow the specified Indian standard.

Let’s take a closer look at IS 9139: 1979 for Malleable iron shots and grits.

This standard specifies the requirements for the malleable iron shot and grit for use as shot blasting machine abrasive in foundries.

Malleable iron shot shall be graded by the shot number, which is the aperture size of the retaining screen in thousandths of millimeters and designated as S-M. Malleable iron grit shall be graded by the grit number, which is the aperture size of the retaining screen in hundredths of millimeters and designated as G-M.

Using an appropriate heat treatment procedure, a malleable iron shot and grit shall be produced by malleabling white iron shot and grit. The particle shape and size must meet standard requirements. When tested in accordance with the method specified, the material must have the chemical composition specified in the standard. The particle's average hardness should be between 200 and 300 HV. Malleable iron shot and grit must have a microstructure of temper carbon nodules in a matrix that is predominantly paralytic or tempered martensitic.