This standard specifies the gas chromatography-mass spectrometry (GC-MS) test method for the five amide herbicides alachlor, acetochlor, metolachlor, butachlor, and pretilachlor in forensic science blood. This standard is applicable to the qualitative and quantitative analysis of alachlor, acetochlor, metolachlor, butachlor, and pretilachlor in forensic science blood.