Chai khí cồn chuẩn 130.3ppm C2H5OH(0.05% BAC) / N2 Balance - Model 6D
Chai khí cồn chuẩn 260.5ppm C2H5OH(0.10% BAC) / N2 Balance - Model 6D
Chai khí cồn chuẩn 521.0ppm C2H5OH(0.20% BAC) / N2 Balance - Model 6D
