Meikō Rikagaku
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| Brand | Meikō Rikagaku |
|---|---|
| Origin | Japan |
| Model | 121SA, 121SB |
| Detection Range (121SA) | 20–800 ppm in acetylene |
| Detection Range (121SB) | 5–90 ppm in acetylene |
| Operating Principle | Colorimetric reaction with calibrated glass tube |
| Required Sampling Device | AP-20 handheld pump |
| Compliance | Designed per JIS K 0321 and ISO 8573-6 for qualitative/semi-quantitative gas analysis |
| Unit Packaging | Single-use, sealed glass ampoules |
| Shelf Life | 24 months from manufacture when stored at ≤25°C and protected from light |