COLO.Science — CALIBRATION WEIGHTS / OIML E1
OIML E1 calibration weights — highest accuracy for micro & analytical balances
Certified reference weights for verification, adjustment and documentation of traceable mass results in regulated laboratory workflows.
Density 8.0 ± 0.02 g/cm³
Mag. susceptibility ≤ 0.0008
Polarization E1 ≤ 2.5 μT
Aluminum case + tools
Audit-ready traceability
OVERVIEW
OIML E1 is the highest accuracy class for calibration weights and is commonly used as a reference for microbalances and high-end analytical balances.
This COLO.Science section highlights the 1 mg – 500 g set with key parameters, while the full E1 assortment is listed below in a single compact table for fast selection.
TECHNICAL SPECIFICATIONS — FEATURED E1 SET (1 mg – 500 g)
| Featured product | E1 1 mg – 500 g calibration weight set |
| Class | OIML E1 |
| Mass range | 1 mg – 500 g |
| Density (High Grade) | 8.0 ± 0.02 g/cm³ |
| Magnetic susceptibility | ≤ 0.0008 |
| Polarization | E1 ≤ 2.5 μT (reference: E2 ≤ 8 μT) |
| Packaging | High-end aluminum case + handling tools |
| PDF TechSpec | WEIGHT.pdf (technical specification / catalogue) |
Set contents (24 pcs):
1mg×1, 2mg×2, 5mg×1, 10mg×1, 20mg×2, 50mg×1, 100mg×1, 200mg×2, 500mg×1,
1g×1, 2g×2, 5g×1, 10g×1, 20g×2, 50g×1, 100g×1, 200g×2, 500g×1.
E1 ASSORTMENT — COMPACT CATALOG TABLE
| Cat.No | Mass | Cat.No | Mass | Cat.No | Mass | Cat.No | Mass |
|---|---|---|---|---|---|---|---|
| INDIVIDUAL WEIGHTS (E1) | |||||||
| 111101 | 1 mg | 111102 | 2 mg | 111103 | 5 mg | 111104 | 10 mg |
| 111105 | 20 mg | 111106 | 50 mg | 111107 | 100 mg | 111108 | 200 mg |
| 111109 | 500 mg | 111110 | 1 g | 111111 | 2 g | 111112 | 5 g |
| 111113 | 10 g | 111114 | 20 g | 111115 | 50 g | 111116 | 100 g |
| 111117 | 200 g | 111118 | 500 g | 111119 | 1 kg | 111120 | 2 kg |
| 111121 | 5 kg | 111122 | 10 kg | 111123 | 20 kg | ||
| WEIGHT SETS (E1) — MASS RANGE | |||||||
| 111201 | 1 mg–500 mg | 111202 | 1 mg–100 g | 111203 | 1 mg–200 g | 111204 | 1 mg–500 g |
| 111205 | 1 mg–1 kg | 111206 | 1 mg–2 kg | 111207 | 1 mg–5 kg | 111208 | 1 mg–10 kg |
| 111209 | 1 mg–20 kg | 111301 | 1 g–100 g | 111302 | 1 g–200 g | 111303 | 1 g–500 g |
| 111304 | 1 g–1 kg | 111305 | 1 g–2 kg | 111306 | 1 g–5 kg | 111307 | 1 g–10 kg |
| 111308 | 1 g–20 kg | 111401 | 1 kg–5 kg | ||||
Catalog table is shown without prices for quick identification of Cat.No and mass/range. Standards and details are available in the PDF TechSpec.
Notice — traceability & handling
For OIML E1, use an accredited calibration certificate, controlled handling conditions and a clearly defined SOP (verification intervals and acceptance criteria).
The content on this page is provided for selection and reference purposes.
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