This standard applies to fine, classified wool, sheared once a year from sheep of various fine-fleece breeds,
GOST 7763-1971 history
1990GOST 28491-1990 Raw fleece-graded sheep wool. Specifications
1971GOST 7763-1971 Unwashed fine classed sheep wool. Technical requirements. Marking, packing, transportation and storage
0000 GOST 7763-1955
GOST 7763-1971 Unwashed fine classed sheep wool. Technical requirements. Marking, packing, transportation and storage was changed to GOST 28491-1990 Raw fleece-graded sheep wool. Specifications.