Lubricants, industrial oils and related products (Class L). Family D (compressors) - Specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG (lubricants for refrigerating compressors)What is ISO 6521 3 Specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG about? ISO 6521 3 specifies the minimum requirements for mineral or synthetic based lubricants intended for use in all types of refrigerating compressors. Who is ISO 6521 3 Specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG for? ISO 65213 on specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG is useful for: Oil and lubricants industry

Annex J provides details of significant technical changes between the 1997 edition and the 2011 edition

Industries that use information technology equipment

BS EN ISO 12224-3:2003 specifies a wetting balance test method for measuring the flux efficacy of a cored solder wire for the electronics industry

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This International Standard specifies a method for determining the gloss of coatings using the three geometries of 20°

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these should follow the requirements of the International Association of Athletics Federations (IAAF)

The biogas is collected in a bag under atmospheric pressure

and of a test pressure not greater than 60 bar (6 MPa) for compressed

if a laser system is operated in vacuum at short wavelength and short pulse duration