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Staining
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=== Standardization === Most of the dyes commonly used in microscopy are available as '''BSC-certified stains'''. This means that samples of the manufacturer's batch have been tested by an independent body, the [[Biological Stain Commission]] ('''BSC'''), and found to meet or exceed certain standards of purity, dye content and performance in staining techniques ensuring more accurately performed experiments and more reliable results. These standards are published in the commission's journal [[Biotechnic & Histochemistry]].<ref>{{cite journal | vauthors = Penney DP, Powers JM, Frank M, Willis C, Churukian C | title = Analysis and testing of biological stains--the Biological Stain Commission Procedures | journal = Biotechnic & Histochemistry | volume = 77 | issue = 5β6 | pages = 237β75 | year = 2002 | pmid = 12564600 | doi = 10.1080/714028210 }}</ref> Many dyes are inconsistent in composition from one supplier to another. The use of BSC-certified stains eliminates a source of unexpected results.<ref name="HorobinKiernan" /> Some vendors sell stains "certified" by themselves rather than by the Biological Stain Commission. Such products may or may not be suitable for diagnostic and other applications.<ref>{{cite web|url=https://biologicalstaincommission.org/vendors-list/|title=Vendors List - The Biological Stain Commission|website=biologicalstaincommission.org|access-date=25 March 2018}}</ref>
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