Insulating liquids. Test method for detection of potentially corrosive sulphur in used and unused insulating oil Ingestion-build-81500 surface smoothness

surface smoothness

It is applicable to manholes of raised coaming

Types of aluminium alloys

BS 5452 on specification for hospital hollow-ware made of plastics material is useful for:

giving some indication of the strength of the bond achievable

Insulating liquids. Test method for detection of potentially corrosive sulphur in used and unused insulating oil Ingestion-build-81500 surface smoothness1 Scope This International Standard specifies a test method for detection of potentially corrosive sulphur in used and unused mineral insulating oil. Most recent failures due to corrosive sulphur are related to the formation of copper sulphide deposits in and on the surface of winding cellulosic paper. The test method uses a copper conductor, wrapped with one layer of paper, immersed in the oil and heated to evaluate the capability of the oil to yield