(a) All percentages shall be calculated on the basis of weight.
(b) In order to allow for variations incident to proper grading and handling, tolerances shall be permitted for the respective color classifications as indicated in Table II:
Table II----------------------------------------------------------------------------------------------------------------
Tolerances for color
-------------------------------------------------------------------------------
Color classification Darker than extra Darker than light Darker than light Darker than amber
light \1\ \1\ amber \1\ \1\----------------------------------------------------------------------------------------------------------------Extra light..................... 15 percent........ 2 percent
(included in 15
percent darker
than extra light).
Light........................... .................. 15 percent........ 2 percent
(included in 15
percent darker
than light).Light amber..................... .................. .................. 15 percent........ 2 percent
(included in 15
percent darker
than light
amber).Amber........................... .................. .................. .................. 10 percent.----------------------------------------------------------------------------------------------------------------\1\ See illustration of this term on color chart.