a standard specifying terminology for various stitches
Class 100: single-thread chainstitches
- 101: single-thread chainstitch
 - 103: blindstitch
 
Class 200: hand stitches
- 201: saddle stitch with threads running parallel, not crossing in holes
 - 202: single-thread backstitch going down and up through same holes
 - 204: single-thread angled backstitch
        
diagram of stitch 204, viewed from the top of the material  
- 205: single-thread backstitch with spaces between loops
 
Class 300: lockstitches
- 301: common lockstitch
 - 304: zigzag
 
Class 400: multi-thread chainstitches
- 401: chainstitch on top, looping on bottom
 - 404: zigzag