| 3/19/2024 | 902710100000 | GAS AND SMOKE ANALYZER (NOT AN EXHAUST GAS ANALYZER) (WITH CALIBRATION FEES)+ | 1 | UNIT | 573 | N/A | SBC OTOMASYON SİSTEMLERİ SANAYİ VE TİCARET ANONİM ŞİRKETİ |
| 3/20/2024 | 902790000000 | GAS CALIBRATION DEVICE PART | 12 | UNIT | 2196 | N/A | ENGİN KOÇ |
| 3/14/2024 | 902790000000 | RHEOMETER DEVICE CALIBRATION PART | 1 | UNIT | 701 | N/A | GÜLHAN YEDEK PARÇA İMALAT SANAYİ VE TİCARET LİMİTED ŞİRKETİ |
| 3/7/2024 | 902790000000 | SPECTROMETER CALIBRATION BOX | 1 | UNIT | 357 | N/A | KONİCA MİNOLTA TURKEY İŞ TEKNOLOJİLERİ ANONİM ŞİRKETİ |
| 3/28/2024 | 902790000000 | CALIBRATION KIT (IN SET-T) | 1 | UNIT | 237 | N/A | HACH LANGE SU ANALİZ SİSTEMLERİ LİMİTED ŞİRKETİ |
| 3/6/2024 | 902789900000 | SOUND INTENSITY CALIBRATION DEVICE | 5 | UNIT | 290 | N/A | İNKATECH ÖLÇÜM SİSTEMLERİ LİMİTED ŞİRKETİ |
| 3/21/2024 | 902790000000 | COMPONENTS AND PARTS OF GAS AND SMOKE ANALYSIS DEVICE, CALIBRATION CONNECTION BODY | 1 | UNIT | 10 | N/A | DRAEGER SAFETY KORUNMA TEKNOLOJİLERİ ANONİM ŞİRKETİ |
| 3/20/2024 | 902790000000 | GAS CALIBRATION DEVICE PART | 7 | UNIT | 1790 | N/A | ENGİN KOÇ |
| 3/8/2018 | 902710100000 | GAS CALIBRATION DEVICE
| 30 | Units | 2469.54 | N/A | ENGIN KOÇ |
| 3/8/2018 | 902790800000 | GAS CALIBRATION DEVICE PARTS
| 50 | Units | 8467.52 | N/A | ENGIN KOÇ |