Raised countersunk head non-falling-out screws, product grade B. Construction and dimensions

Standard published on 1.1.1982

Mushroom-head non-falling-out screws, product grade B. Construction and dimensions

Standard published on 1.1.1982

Eye refractometers. Technical requirements and test methods

Standard published on 1.1.2013

Cheese-head non-falling-out screws with hexagon socket for `width across flats`, product grade B. Construction and dimensions

Standard published on 1.1.1982

Ophthalmometers. Technical requirements and test methods

Standard published on 1.1.2013

Non-falling-out screws with flat for `width across flats`, product grade B. Construction and dimensions

Standard published on 1.1.1982

Knurled-head non-falling-out screws, product grade B. Construction and dimensions

Standard published on 1.1.1982

Solid electroinsulating materials. Method for the determination of arc resistance of alternating voltage greater than 1000 V

Standard published on 1.1.1980

Solid electroinsulating materials. Method for the determination of arc resistance of direct voltage up to 1000 V

Standard published on 1.1.1980

Plastics insulated multi-core installation cables. Specifications

Standard published on 1.1.1982