100 percent of the material will pass through a one and one-half inch square sieve opening.
90 to 100 percent of the material will pass through a one inch square sieve opening.
40 to 80 percent of the material will pass through a three-quarter inch square sieve opening.
15 to 60 percent of the material will pass through a one-half inch square sieve opening.
0 to 30 percent of the material will pass through a three-eighths inch square sieve opening.
0 to 10 percent of the material will pass through a #4 sieve (standard nomenclature in the industry).
0 to 5 percent of the material will pass through a #8 sieve.
0 to 0.5 percent of the material will pass through a #200 sieve.
Note: | Smaller crushed material is preferable. It should be used where drainage and durability issues do not arise. Material that is three-quarter inch or less in size is recommended for switching leads in yards. |
Wash. Admin. Code § 480-60-035
Statutory Authority: RCW 81.04.160 and 80.01.040. 00-04-011 (Order No. R-469, Docket No. TR-981101), § 480-60-035, filed 1/21/00, effective 2/21/00.