Table 8. Physical properties of DL Dust and Dust formulations⁷⁸⁾.

Items		DL Dust	Dust
Fineness	300 Mesh ≦ 45 µm	≧95%	98%
Average particle size		≧20 µm	App.10 µm
Percentage of particle ≦10 µm		≦20%	App.50%
Apparent specific gravity		0.7–1.1	0.45–0.65
Drift Index		≦20	App.50

・Physical properties of DL Dust formulation is from specification of ZEN-NOH (1985) ・Regarding physical properties of Dust formulation, those of a commercial product are described.