BS ISO 23572:2020 pdf download.Petroleum products — Lubricating greases — Sampling of greases
1 Scope
This document specifies methods for obtaining samples of lubricating grease from production lots or shipments and gives instructions for inspecting greases in sales packages.
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 3170:2004, Petroleum liquids — Manual sampling
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4 General
The procedures described in this document are quite general because a wide variety of conditions are often encountered, and they may be modified to satisfy particular specifications.
Users shall proceed in accordance with ISO 3170:2004, Clause 6 and 7.2 pertaining to precautions,safety, care and cleanliness, except where there is conflict with the instructions given in this document.
5 Sampling equipment
5.1 General
The sampling equipment described hereafter shall be chosen based on the observations done on the samples (control of the homogeneity):
— according to the size and type of container from which the sample is drawn; and
— according to the product and size of the sample.
5.7 Containers
The containers intended to receive the samples shall be clean and dry and non-corrodible by the sampled products. When the samples are stored over prolonged periods, the containers shall be resistant to the ambient conditions and well-proof if the container has been obtained by crimping. The containers shall be able to be closed with a tight lid.
6 General measures
6.1 Sampling on the manufacturing site If the inspection is performed on the manufacturing site, the samples shall be withdrawn from the containers ready for shipping separately on each manufacturing lot. Grease samples shall not be taken directly from grease kettles, cooling pans or tanks of processing equipment. Do not sample the grease before it has stayed for at least 12 hours in the finished container and has cooled down to a temperature not more than 9 ° above that of the air surrounding the container.
If the same grease batch is packaged in containers of different sizes, treat the grease in each size of container as a separate lot.
BS ISO 23572:2020 pdf download
