Article list of assortment: Irmeco Zusatz - First letter: N
| Art. No. | Description |
| 10009224 | Neutralization tank |
| 40001498 | NaOH tube UDK129 |
| 10001085 | Norprene tube Ø7,9x11,1 mm |
| A00000265 | NaOH tank with caps (UDK1X9) |
| 9996470 | New Replacement Membranes (3) and KCl Fill Solution |
| 2418642 | Nitrification Inhibitor, 50ml Lovibond |
| 3663090 | Non-Intrusive IR Probe for Integrity 10 |
| 1009015 | NITRATE COMBINATION ISE |
| 9995002 | NEEDLE VALVE ASSEMBLY |
| 9995631 | NEBULIZER |
| 171020 | Nessleriser Daylight Nessleriser Daylight |
| 172030 | Nessleriser 2150 w. stand, Dayl. Unit, 2 Nesslertubes (113 mm) & 2 Plungers |
| 172040 | Nessleriser 2250 w. stand, Dayl. Unit, 2 Nesslertubes (250 mm) & 2 Plungers |
| 172150 | Nessleriser 2150 with Stand Nessleriser 2150 with Stand |
| 172160 | Nessleriser 2150 w. stand, Dayl. Unit, 2 Nesslertubes (113 mm) & 2 Plungers |
| 172170 | Nessleriser 2250 w. 2 Nesslertubes (250 mm) & 2 Plungers |
| 172250 | Nessleriser 2250 with Stand Nessleriser 2250 with Stand |
| 284170 | NSH Disc Hazen/APHA 10 - 90 mg/L, Nesselriser 2150 |
| 283110 | NAA Disc Ammonia 0.02 - 0.2 mg/L, f. Nesselriser 2150 |
| 283120 | NAB Disc Ammonia 0.2 - 0.52 mg/L, f. Nesselriser 2150 |
| 283130 | NAC Disc Ammonia 0.56 - 1.2 mg/L, f. Nesselriser 2150 |
| 283140 | NAD Disc Ammonia 1.2 - 2.0 mg/L, f. Nesselriser 2150 |
| 283450 | NDPB Disc Chlorine DPD 0.01 - 0.1 mg/L, f. Nesselriser 2150 |
| 283460 | NDPC Disc Chlorine DPD 0.02 - 0.2 mg/L, f. Nesselriser 2150 |
| 283470 | NDPD Disc Chlorine DPD 0.1 - 1.0 mg/L, f. Nesselriser 2150 |