型號 | 名稱 | 化學(xué)式 | 檢測范圍 |
121S | 苯 | C6H6 | 2~312ppm |
121 | 2.5~120ppm | ||
121L | 0.125~60ppm | ||
121SL | 1~100ppm | ||
121SP | 0.5~10ppm | ||
121F | 30~1200mg/m³ | ||
121SLF | 30~600mg/m³ | ||
121P | 250~3000μg/ m³ |