Revised Standard from Last Update.

1. SCOPE

This standard (Part 4) covers the requirements for circular sight and light glasses.

2. REFERENCES

The standard given below contains provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the edition indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of this standard:

IS 5428 (Part 1) : 1985 Specification for gauge glasses: Part 1 Tubular glasses for level gauges (first revision)