BS ISO 23572:2020 pdf free.Petroleum products — Lubricatinggreases — Sampling of greases.
This document specifies methods for obtaining samples of lubricating grease from production lots orshipments and gives instructions for inspecting greases in sales packages.The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document.For dated references,only the edition cited applies. Forundated references, the latest edition of the referenced document(including any amendments) applies.
The procedures described in this document are quite general because a wide variety of conditions areoften 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.
The sampling equipment described hereafter shall be chosen based on the observations done on thesamples (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.
The containers intended to receive the samples shall be clean and dry and non-corrodible by the sampledproducts. When the samples are stored over prolonged periods, the containers shall be resistant to theambient conditions and well-proof if the container has been obtained by crimping.The containers shallbe able to be closed with a tight lid.
lf the inspection is performed on the manufacturing site, the samples shall be withdrawn from thecontainers ready for shipping separately on each manufacturing lot.Grease samples shall not be takendirectly from grease kettles, cooling pans or tanks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 hascooled 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 ofcontainer as a separate lot.BS ISO 23572 pdf download.