ISO 641:1975現行
Laboratory glassware - Interchangeable spherical ground joints
出版：International Organization for Standardization
專家解讀視頻
Gives 10 sizes, and sets out a test for leakage.
JIS R 3503:1994 - Equivalent
JIS R 3651:1997 - Equivalent
AS 2410-1981 - Equivalent
GB/T 14149-1993 - Identical
NFB 35 012:1972 - Equivalent
PN 92/B-13012:1992 - Identical
BS 2761:1983 - Identical
UNE 43303:1982 (R2012) - Identical
AS 2410-2005 - Equivalent
