Bromodichloromethane Solution (100 µg/mL in Methanol) . U-HC-010 ( 1 x 1 mL ) Bromoform Solution (100 µg/mL in Methanol) . U-HC-020 ( 1 x 1 mL ) Chloroform Solution (100 µg/mL in Methanol) . U-HC-080 ( 1 x 1 mL ) Dibromochloromethane Solution (100 µg/mL in Methanol) . U-HC-100 ( 1 x 1 mL ) Trihalomethanes Mixture (100 µg/mL in Methanol) . U-THM-501N ( 1 x 1 mL )