Ana amfani da na'urar gwajin juriyar ruwa don auna juriyar ruwa na yadi a ƙarƙashin yanayin ƙarancin tasiri, don yin hasashen yuwuwar ruwan sama na yadi.
AATCC42 ISO18695
| Lambar Samfura: | DRK308A |
| Tsayin Tasiri: | (610±10) mm |
| Diamita na mazurari: | 152mm |
| Bututun Hannu Adadi: | Kwamfuta 25 |
| Buɗewar bututun ƙarfe: | 0.99mm |
| Girman Samfuri: | (178±10) mm×(330±10) mm |
| Tashin hankali spring matsa: | (0.45±0.05) kg |
| Girman: | 50 × 60 × 85cm |
| Nauyi: | 10Kg |