ULTRA-U-RPC-126AS
2,3,3',4-Tetrachlorobiphenyl Solution (BZ#55) 100 µg/mL in isooctane (2,2,4-trimethylpentane)
ULTRA-U-RPC-126S
2,3,3',4-Tetrachlorobiphenyl Solution (BZ#55) 100 µg/mL in hexane
ULTRA-U-RPC-127AS
3,3',4,5-Tetrachlorobiphenyl Solution (BZ#78) 100 µg/mL in isooctane (2,2,4-trimethylpentane)
ULTRA-U-RPC-127S
3,3',4,5-Tetrachlorobiphenyl Solution (BZ#78) 100 µg/mL in hexane
ULTRA-U-RPC-128AS
2,3,3',5'-Tetrachlorobiphenyl Solution (BZ#58) 100 µg/mL in isooctane (2,2,4-trimethylpentane)
ULTRA-U-RPC-128S
2,3,3',5'-Tetrachlorobiphenyl Solution (BZ#58) 100 µg/mL in hexane