主题：煤焦油在山西变废为宝 -- 罗博

a) Active ingredients for the control of dandruff. (1) Coal tar,

0.5 to 5 percent. When a coal tar solution, derivative, or fraction is

used as the source of the coal tar, the labeling shall specify the

identity and concentration of the coal tar source used and the

concentration of the coal tar present in the final product.

(2) Pyrithione zinc, 0.3 to 2 percent when formulated to be applied

and then washed off after brief exposure.

(3) Pyrithione zinc, 0.1 to 0.25 percent when formulated to be

applied and left on the skin or scalp.

(4) Salicylic acid, 1.8 to 3 percent.

(5) Selenium sulfide, 1 percent.

(6) Selenium sulfide, micronized, 0.6 percent.

(7) Sulfur, 2 to 5 percent.

Coal tar,

0.5 to 5 percent