Electrical relays - Part 6: Measuring relays and protection equipment
This standard specifies the general performance requirements of all electrical measuring relays and protection equipment used in the electrotechnical fields covered by the IEC. Supersedes IEC 60255-6 (1978) and its first supplement 60255-6 A (1980).
Medical electrical equipment - Part 1: General requirements for safety
This is the major revised and updated baseline of standards for the safety of all medical electrical equipment used by or under the supervision of qualified personnel in the general medical and patient environment. lt also contains certain requirements for reliable operation to ensure safety. Note the change of title from the first (1977) edition. (For particular requirements see series 601-2…
Telecontrol equipment and systems. Part 1: General considerations. Section One: General principles
Specifies classes for environmental conditions under which telecontrol equipment has to operate. Gives an overall view of the functional elements contributing to basic structures and to the choice of telecontrol system configurations.
It deals with functions which are typical for any process to be monitored and controlled but emphasizes the specific problems which characterize geographically…
Animal and vegetable fats and oils — Determination of saponification value
The second edition cancels and replaces the first edition (ISO 3657:1977), of which it constitutes a technical revision. The method consists in boiling of a sample under reflux with ethanolic potassium hydroxide solution, followed by titration of the excess potassium hydroxide with standard volumetric hydrochloric acid solution.
Implants for surgery — Metal bone screws with conical under-surface of head — Dimensions
Bone screws for particular applications are not covered by this standard. The different forms are illustrated. The informative annex A shows the interrelationship of International Standards dealing with bone screws, bone plates and relevant tools.
Aerospace — Nuts, hexagonal, self-locking, with MJ threads, coated or uncoated, classification 1 100...
The values laid down herein have been specified so as to satisfy the requirements laid down in ISO 5858. The values given apply to nuts, a self-locking feature of which is achieved by forming the upper portion out-of-round. Is intended solely for the drawing up of product standards appropriate for aerospace use.
Compressors for the process industry — Reciprocating types — Specifications and data sheets for thei...
Specifies the technical requirements for the design and construction of compressors; it also details the documetation requirements. Annex A, which contains instructions subject agreements in the contract, is given for information only. Annex B, which contains the data sheets, forms an integral part of this Standard.
Preparation of steel substrates before application of paints and related products — Visual assessmen...
Identifies four levels of mill scale and rust that are commonly found on surfaces of uncoated steel. It also identifies certain degrees of visual cleanliness after surface preparation of uncoated steel surfaces and of steel surfaces after total removal of any previous coating. Are defined by written descriptions together with photographic examples. Is equivalent to Swedish Standard SS 05 59 00 (…
