| 3/21/2018 | 382200009019 | CALIBRATION GAS FOR INDUSTRIAL GAS MEASURING DEVICES
| 52 | Units | 6526.36 | N/A | SET TEKNIK EMNIYET ÇEVRE VE LABORATUVARTEK.SAN.TIC.A.S. |
| 3/18/2018 | 382200009019 | CALIBRATION GAS
| 50 | Units | 5537.87 | N/A | TEDEKS IS GÜVENLIGIÜRÜNLERI VE ÖLÇÜM CIH.SAN.VE TIC.LTD.STI |
| 3/20/2018 | 382200009019 | MIXED GAS USED IN CALIBRATION PROCESS (NOT USED IN LABORATORIES AND FOR DIAGNOSTIC PURPOSES-NOT YGSKGTE-15 TUBES)
| 15 | Units | 1054.93 | N/A | DOGANAK DOGAN AKYÜZVE ORT.KOLL.STI. |
| 3/19/2018 | 902710900000 | "THE PART MEASURING THE CALIBRATION ** IS NOT FROM EXHAUST GAS ANALYSIS DEVICES,"
| 2 | Units | 2498.6 | N/A | EKOSINERJI ELEKTRIKSAN.VE TIC.A.S. |
| 3/20/2018 | 382200009019 | MIXED GAS USED IN CALIBRATION PROCESS (NOT USED IN LABORATORIES AND FOR DIAGNOSTIC PURPOSES-NOT YGSKGTE-15 TUBES)
| 15 | Units | 1054.92 | N/A | DOGANAK DOGAN AKYÜZVE ORT.KOLL.STI. |
| 3/20/2018 | 902680209000 | CALIBRATION DEVICE FOR GAS LEAKS
| 4 | Units | 9206.62 | N/A | UGUR SOGUTMA MAKINALARI SANAYI VE TICARET A.S. |
| 3/8/2018 | 902710100000 | GAS CALIBRATION DEVICE
| 13 | Units | 8774.57 | N/A | ENGIN KOÇ |
| 3/8/2018 | 902710100000 | GAS CALIBRATION DEVICE
| 52 | Units | 20886.01 | N/A | ENGIN KOÇ |
| 3/8/2018 | 902710100000 | GAS CALIBRATION DEVICE
| 30 | Units | 2469.54 | N/A | ENGIN KOÇ |
| 3/8/2018 | 902710100000 | GAS CALIBRATION DEVICE
| 1 | Units | 1789.83 | N/A | ENGIN KOÇ |