Visible/Near-Infrared Spectroscopy Devices and Wet-Chem Analyses for Grapes (Vitis vinifera L.) Quality Assessment: An Environmental Performance Comparison

Table 4

Quantity, allocation factor, lifetime, and amount per analysis for TSS determination.

	Unit	Quantity (Q)	Allocation factor (Af)	Lifetime (years)	Lifetime (no. analyses)	Amount per analysis^†
Input
Must	g	0.2	1.00	n.a.	1	0.200
Digital refractometer	g	200	1.00	15	6750	0.030
Manual pipettes (20–200 µL)	g	80.6	1.00	10	4500	0.018
Pipettes caps (20–200 µL)	g	0.38	1.00	1	1	0.380
Paper towel (for instrument cleansing)	g	2.03	0.33	n.a.	1	0.677
Water (for instrument washing)	g	0.015	1.00	n.a.	1	0.015
Output
Plastic waste	g	0.38	n.a.	n.a.	n.a.	n.a.
Paper waste	g	0.892	n.a.	n.a.	n.a.	n.a.

†Quantity × allocation factor/no. of analyses.