8.1.2.1.1 Greywater challenge water: Systems treating bathing source water

Prepare the challenge water according to the following formula:

Wastewater components1 Amount/100 L
body wash with moisturizer 30 g
toothpaste 3 g
deodorant 2 g
shampoo 19 g
conditioner 21 g
lactic acid 3 g
secondary effluent 2 L
raw influent screened to ≤ 1mm 1 L
bath cleaner 10 g
liquid hand soap 23 g
test dust2 10 g
urea As needed to bring influent TKN within the specified range
NaOH As needed to adjust pH
HCL As needed to adjust pH
1 See Annex C for example products.

2 See ISO 12103-1, Road Vehicles – Test Dust for Filter Evaluation. The test dust shall meet the specification of ISO 12103-1, A2 – Fine test dust. A test dust that meets these specifications is available from Powder Technology, Inc. Inc., PO Box 1464, Burnsville, MN 55337. Source.