Isicisha-mlilo sokuqala sagunyazwa ngusokhemisi u-Ambrose Godfrey ngo-1723. Kusukela lapho, izinhlobo eziningi zezicishamlilo ziye zasungulwa, zashintshwa futhi zathuthukiswa.
Kodwa into eyodwa ihlala ifana kungakhathaliseki ukuthi inkathi - izakhi ezine kufanele zibe khona ku-aumlilo ukuba khona. Lezi zakhi zihlanganisa umoya-mpilo, ukushisa, uphethiloli kanye nokusabela kwamakhemikhali. Uma ususa i-elementi eyodwa kwezine ku- “unxantathu womlilo,” umlilo ungabe usucishwa.
Nokho, ukuze ucime ngempumelelo umlilo, kufanele usebenzise i-isicisha-mlilo esilungile.
Ukuze ucime ngempumelelo umlilo, kufanele usebenzise isicisha-mlilo esifanele. (Isithombe/Greg Fries)
IZIHLOKO EZIHLOBANE
Kungani imishini yokucima umlilo, ama-ambulensi adinga izicisha-mlilo eziphathwayo
Izifundo zokusebenzisa isicishamlilo
Uzithenga kanjani izicishamlilo
Izinhlobo ezivame kakhulu zezicishamlilo ezisetshenziswa ezinhlotsheni ezahlukene zezibaseli zomlilo yilezi:
- Isicishamlilo samanzi:Izicishamlilo zamanzi zicisha imililo ngokususa isici sokushisa sikanxantathu womlilo. Asetshenziselwa imililo yekilasi A kuphela.
- Isicishamlilo esinamakhemikhali omile:Izicisha-mlilo zamakhemikhali omile zicisha umlilo ngokuphazamisa ukusebenza kwamakhemikhali kanxantathu womlilo. Asebenza kakhulu emlilweni we-Class A, B no-C.
- Isicishamlilo se-CO2:Izicisha-mlilo ze-carbon dioxide zisusa ingxenye yomoya-mpilo kanxantathu womlilo. Baphinde basuse ukushisa ngokukhishwa okubandayo. Angasetshenziswa emililo yekilasi B no-C.
Futhi ngenxa yokuthi yonke imililo ibaswa ngendlela ehlukile, kunezinhlobonhlobo zezicishamlilo ezisekelwe ohlotsheni lomlilo. Ezinye izicisha-mlilo zingasetshenziswa ezigabeni ezingaphezu kweyodwa zomlilo, kuyilapho ezinye zixwayisa ngokusetshenziswa kwezicisha-mlilo zezigaba ezithile.
Nakhu ukuhlukaniswa kwezicishamlilo ezihlukaniswa ngohlobo:
| Izicisha-mlilo ezihlukaniswa ngohlobo: | Izicishamlilo zisetshenziselwa ini: |
| Class A isicishamlilo | Lezi zicishamlilo zisetshenziselwa imililo ehlanganisa izinto ezivuthayo ezivamile, njengezinkuni, iphepha, indwangu, udoti namapulasitiki. |
| Isicishamlilo se-Class B | Lezi zicishamlilo zisetshenziselwa imililo ehlanganisa uketshezi oluvuthayo, njengamafutha, uphethiloli namafutha. |
| Isicishamlilo se-Class C | Lezi zicishamlilo zisetshenziselwa imililo ehlanganisa izinto zikagesi, njengezinjini, ama-transformer nezinto zikagesi. |
| Isicishamlilo se-Class D | Lezi zicishamlilo zisetshenziselwa imililo ehlanganisa izinsimbi ezivuthayo, njenge-potassium, i-sodium, i-aluminium ne-magnesium. |
| Isicishamlilo se-Class K | Lezi zicishamlilo zisetshenziselwa imililo ehlanganisa amafutha okupheka namafutha okugcoba, njengamafutha ezilwane nemifino. |
Kubalulekile ukukhumbula ukuthi umlilo ngamunye udinga isicisha-mlilo esihlukile ngokuya ngezimo.
Futhi uma uzosebenzisa isicishamlilo, khumbula nje i-PASS: donsa iphini, uqondise umlomo noma ipayipi ngaphansi komlilo, cindezela izinga lokusebenza ukuze ukhiphe isicishamlilo futhi ushanele umlomo noma ipayipi ukusuka kolunye uhlangothi kuya kolunye. kuze kucime umlilo.
Isikhathi sokuthumela: Aug-27-2020