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Manitoba waste code EHS21 Salt used in food preservation & pulp making. Limit 100 mg/kg.

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EHS21, Ammonium bisulphite.

  • Manitoba Schedule B concentration codes

    Ammonium bisulphite

Manitoba total-mass limit: 100 mg/kg for Ammonium bisulphite.

Total ammonium bisulphite is limited to 100 mg/kg by total mass. Salt used in food preservation & pulp making.

Is Manitoba EHS21 hazardous waste?

Yes, when the Schedule B threshold is met. EHS21 is a Category 3 Provincial Waste Code. It applies when ammonium bisulphite reaches the Schedule B total mass-concentration threshold of 100 mg/kg.

The 3-digit provincial waste class goes in a separate field. It describes the waste stream and doesn't replace the UN Number or Provincial Waste Code.

For regulated hazardous waste, enter EHS21 in the UN Number or Provincial Waste Code field on the Manitoba movement document. Manitoba’s registration and shipment rules apply.

What does Manitoba EHS21 cover?

This code tests waste for ammonium bisulphite. Measure total concentration by mass and compare it with 100 mg/kg. At or above that Schedule B figure, the waste is hazardous-waste Category 3 and takes code EHS21.

Schedule
B
Hazardous-waste category
3
Recorded threshold
100 mg/kg
Official wording
Hazardous Waste Regulation, M.R. 195/2015.php?reg=195%2F2015)

Is ammonium bisulphite always Manitoba EHS21?

CodeWhen it fits
EHS21Total ammonium bisulphite is 100 mg/kg or more by mass.

Pick the code from the waste's actual composition, test result and source. Provincial registration and movement rules, federal cross-border controls and TDG classification are separate checks that a code doesn't replace.

Which codes sit beside Manitoba EHS21?

CodeWhat it is
EHS17Ammonia solutions
EHS18Ammonium acetate
EHS19Ammonium benzoate
EHS20Ammonium bicarbonate
EHS22Ammonium carbamate
EHS23Ammonium carbonate
EHS24Ammonium chloride
EHS25Ammonium citrate, dibasic