【求助】求助一句话翻译

http://books.google.com.hk/books?id=-DYJwH7jLNUC&printsec=frontcover&dq=Code+of+Federal+Regulations,+Title+21,+Food+and+Drugs,+Pt.+170-199&source=bl&ots=298cd9gP-N&sig=xA0AtTGS2SX7D7ZOIh6ckdMAN94&hl=zh-TW&ei=D2-wTLH5E4OycILakcAN&sa=X&oi=book_result&ct=result&resnum=1&ved=0CAgQ6AEwAA#v=snippet&q=0.17%20pound&f=false



My interpretation

For use only as an oil and water repellant at a level :

(1) Not to exceed 0.17 pound per 1000 square feet of treated paper or paperboard having a sheet basis weight equal to 100 pound/3000 square feet or less than 100 pound/3000 square feet

And

(2) Not to exceed 0.5 pound per 1000 square feet of treated paper or paperboard having a sheet basis weight greater than 100 lb per 3000 square feet as determined by……

= = = = = =

In short:

For use only as an oil and water repellant at a level :

(1) < 0.17 lb/1000 ft² for sheet weight ≤ 100 lb/3000 ft²

(2) < 0.5 lb/1000 ft² for sheet weight > 100 lb/3000 ft²