4.4.2.4 Blood Standard

Draw a blood specimen, approximately 0.5 mL, and transfer it to a pre-labeled card that is in the pre-labeled ‘Blood Standard’ envelope. The blood stain should be about the size of a small coin.

Allow the sample to air-dry. Do not use heat to dry. Dry in a secure place to minimize cross-contamination.

Once dried, place this swatch in the pre-labeled ‘Blood Standard’ envelope.