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

Table 1

Quantity, allocation factor, lifetime, and amount per analysis for the preparation of the sample.

	Unit	Quantity (Q)	Allocation factor (Af)	Lifetime (years)	Lifetime (no. analyses)	Amount per analysis^†
Input
Must	g	100	0.33	n.a.	1	33.333
Plastic container (100 mL)	g	15.91	0.33	10	4500	0.001
Plastic tops	g	4.06	0.33	10	4500	0.000
Plastic bags (20 × 30)	g	6.57	0.33	n.a.	1	2.190
Sodium azide (0.2%)	g	1	0.33	n.a.	1	0.333
Paper towel (for materials cleaning)	g	2.03	0.33	n.a.	1	0.677
Deionised water (for materials washing)	g	5	0.33	n.a.	1	1.667
Manual pipettes (100–1000 µL)	g	83.42	0.33	10	4500	0.006
Pipette caps (100–1000 µL)	g	0.787	0.33	1	1	0.262
Output
Sample waste	g	230	n.a.	n.a.	n.a.	n.a.
Plastic waste	g	7.36	n.a.	n.a.	n.a.	n.a.
Paper waste	g	2.03	n.a.	n.a.	n.a.	n.a.

^†Quantity × allocation factor/no. of analyses.