BS ISO 6521-1:2019 pdf download – Lubricants, industrial oils and related products (Class L) — Family D (compressors) Part 1: Specifications of categories DAA and DAB (lubricants for reciprocating and drip feed rotary air compressors)
This document specifies the minimum requirements for mineral or synthetic based lubricants intended for use in reciprocating and drip feed rotary air compressors (vane compressors) with the compression chamber(s)/cylinders lubricated by direct lubricant injection.
NOTE This document can be read in conjunction with ISO 6743‑3 [1] .
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2160, Petroleum products — Corrosiveness to copper — Copper strip test
ISO 2592, Petroleum and related products — Determination of flash and fire points — Cleveland open cup method
ISO 2719, Determination of flash point — Pensky-Martens closed cup method
ISO 2909, Petroleum products — Calculation of viscosity index from kinematic viscosity
ISO 3016, Petroleum and related products from natural or synthetic sources — Determination of pour point ISO 3104, Petroleum products — Transparent and opaque liquids — Determination of kinematic viscosity and calculation of dynamic viscosity
ISO 3170, Petroleum liquids — Manual sampling
ISO 3448, Industrial liquid lubricants — ISO viscosity classification
ISO 3675, Crude petroleum and liquid petroleum products — Laboratory determination of density — Hydrometer method
ISO 3987, Petroleum products — Determination of sulfated ash in lubricating oils and additives
ISO 4259 (all parts), Petroleum and related products — Precision of measurement methods and results
ISO 6245, Petroleum products — Determination of ash
ISO 6247, Petroleum products — Determination of foaming characteristics of lubricating oils
ISO 6296, Petroleum products — Determination of water — Potentiometric Karl Fischer titration method
ISO 6614, Petroleum products — Determination of water separability of petroleum oils and synthetic fluids
ISO 6615, Petroleum products — Determination of carbon residue — Conradson method
6 Specifications
6.1 Specifications for ISO-L-DAA air compressor oils These lubricants are refined mineral oils with suitable oxidation and corrosion inhibitors; they can also contain some additional detergent additives to improve the cleanliness of the exhaust valve systems in reciprocating compressors. They are intended to lubricate reciprocating and rotary air compressors operating within the parameters of a normal duty cycle as defined in ISO 6743‑3 [1] .
These lubricants shall be in accordance with the specifications given in Table 1.
6.2 Specifications for ISO-L-DAB air compressor oils These lubricants are either refined mineral oils, part‑synthetic or synthetic oils with suitable oxidation and corrosion inhibitors; they may also contain some additional detergent additives to improve the cleanliness of the exhaust valve systems in reciprocating compressors. They are intended to lubricate reciprocating and rotary air compressors operating within the parameters of a severe duty cycle as defined in ISO 6743‑3 [1] .
These lubricants shall be in accordance with the specifications given in Table 2.BS ISO 6521-1 pdf download.