IS 7020 : 1973 Crystals and Dielectric Materials Used in Instrument Industry
| UDC 532.783 : 681.2 | PGD 22 |
|
| Reaffirmed 2021 |
1 Scope
1.1 This standard covers the optical, physical and chemicalcharacteristics of crystals and dielectric materials (synthetic andnatural) used in instrument industry.