This standard outlines the specifications for cold-rolled stainless steel strips used in the production of razor blades.

Strips must originate from steel produced via an electric process. Cold-rolled steel strips should be free from surface defects like scales, rust, pitting, cracked edges, etc. Additionally, slit edges on cold-rolled steel strips should be reasonably free from burrs.

The general requirements for the provision of cold-rolled stainless steel strips are outlined in 1387:1967. These strips must be supplied in coil form and in an annealed, light rolled condition.

Cold rolled steel strips must meet the specifications outlined in the standard. The hardness of cold rolled steel strip will be assessed using a microhardness tester. A well-equipped and staffed laboratory is necessary for conducting various tests according to the methods specified in the standard.

TESTS

The subsequent test must be conducted for Cold Rolled Stainless Steel Strips.

• Chemical composition

• Product analysis

• Hardness test

• Freedom from defects

• Edge condition

PACKING AND MARKING

Cold rolled steel strip coils need to be packed securely to prevent rusting and damage during transit. Each strip coil should be labeled with details such as size, cast number, manufacturer's name, or trademark. Additionally, the material may bear a standard mark (ISI Mark).

To use a standard mark (ISI Mark), the manufacturer is required to obtain a BIS license for cold rolled stainless steel strips for razor blades from the Bureau of Indian Standards. This license is granted following a successful assessment of manufacturing infrastructure, processes, quality control, and testing capabilities conducted during an on-site visit to the manufacturing premises by the BIS.

PROCESS FOR BIS ISI MARK CERTIFICATION