Txiav cov qib tiv thaiv rau cov hnab looj tes yog tus qauv los ntsuas seb cov hnab looj tes tiv thaiv zoo li cas rau kev txiav, slashes, thiab abrasions. Cov qib no feem ntau yog raws li cov qauv xws li ANSI/ISEA (American National Standards Institute/International Safety Equipment Association) lossis EN 388 (tus qauv European).
Ntawm no yog ib qho kev sib txawv ntawm qhov sib txawv ntawm kev txiav tsis kam:
** ANSI / ISEA Txiav Qib Resistance (North America) **
ANSI / ISEA 105 tus qauv ntsuas kev txiav cov hnab looj tes ntawm qhov ntsuas ntawm A1 txog A9. Tus lej siab dua, qib kev tiv thaiv ntau dua.
1. ** Qib A1 ** (200-499 grams ntawm kev txiav tsis kam)
- **Siv Case**: Yam tsawg kawg nkaus txiav phom sij; Lub luag haujlwm tseem ceeb xws li kev sib dhos dav dav, tuav cov khoom siv, lossis ntim khoom.
- ** Kev Tiv Thaiv **: Kev tiv thaiv qis tiv thaiv me me.
2. ** Qib A2 ** (500-999 grams ntawm kev txiav tsis kam)
- **Siv Case**: Teeb pom kev txaus ntshai, xws li cov khoom ntse me me hauv warehouses, light manufacturing, and general care.
- ** Kev Tiv Thaiv **: Kev tiv thaiv me ntsis ntxiv rau kev tuav cov npoo ntse.
3. **Level A3** (1,000–1,499 grams ntawm kev txiav tsis kam)
- **Siv Case**: Kev txiav txim siab me me, feem ntau hauv kev lag luam xws li kev tsim kho, kev ua haujlwm hauv tsheb, thiab kev lag luam hauv tsev.
- ** Kev Tiv Thaiv **: Tsim nyog rau kev tuav cov khoom ntse me ntsis, xws li cov khoom hlau.
4. ** Qib A4 ** (1,500–2,199 grams ntawm kev txiav tsis kam)
- **Siv Case **: Nruab nrab txiav kev pheej hmoo, xws li tuav cov ntawv hlau, iav, lossis cov cuab yeej ntse hauv kev lag luam xws li tsheb, hlau ua haujlwm, thiab sib dhos.
- ** Kev Tiv Thaiv **: Haum rau kev tuav cov khoom ntse lossis cov cuab yeej.
5. **Level A5** (2,200–2,999 grams ntawm kev txiav tsis kam)
- **Siv Case**: Muaj kev phom sij ntau dua, xws li ua haujlwm nrog iav, hlau fabrication, thiab qee qhov chaw tsim khoom uas muaj cov khoom ntse.
- ** Kev Tiv Thaiv **: Kev txiav siab siab, muab kev tiv thaiv zoo tiv thaiv cov hniav ntse lossis cov khoom siv.
6. **Level A6** (3,{3}}–3,999 grams ntawm kev txiav tsis kam)
- **Siv Case **: Muaj kev pheej hmoo siab ib puag ncig xws li iav tuav, hlau stamping, lossis kev lag luam ua zaub mov uas muaj kev pheej hmoo siab.
- ** Kev Tiv Thaiv **: Kev tiv thaiv muaj zog rau kev sib cuag nrog cov khoom ntse.
7. **Level A7** (4,{3}}–4,999 grams ntawm kev txiav tsis kam)
- **Siv Case**: Kev pheej hmoo raug txiav hnyav, xws li hauv kev tsim cov hlau hnyav, kev tsim kho, lossis kev tuav iav.
- ** Kev Tiv Thaiv **: Kev txiav siab heev rau cov ntaub ntawv ntse heev.
8. **Level A8** (5,{3}}–5,999 grams ntawm kev txiav tsis kam)
- **Siv Case**: Muaj kev phom sij heev, xws li hauv cov ntawv hlau, kev tsim khoom, thiab kev tuav cov khoom ntse.
- ** Kev Tiv Thaiv **: Kev tiv thaiv siab tshaj plaws hauv cov xwm txheej hnyav.
9. ** Qib A9** (6, 000+ grams ntawm kev txiav tsis kam)
- **Siv Case **: Ultra-high-risk ib puag ncig nrog tas li raug rau cov khoom ntse heev.
- ** Kev Tiv Thaiv **: Kev tiv thaiv kev txiav ntau tshaj plaws.
** EN 388 Txiav Resistance Levels (Tebchaws Europe) **
EN 388 tus qauv siv qhov kev ntsuas sib txawv nrog qib ntawm 1 txog 5 raws li qhov yuav tsum tau muaj zog txiav los ntawm cov hnab looj tes siv lub voj voog.
1. ** Qib 1 ** (1.2 Newtons / 102 grams)
- **Siv Case**: Cov cheeb tsam uas muaj kev pheej hmoo tsawg nrog kev phom sij tsawg heev.
- ** Kev Tiv Thaiv **: Kev txiav qis heev rau kev ua haujlwm yooj yim.
2. ** Qib 2** (2.5 Newtons / 204 grams)
- **Siv Case **: Lub teeb txiav kev phom sij hauv kev lag luam xws li lub teeb sib dhos lossis kev ua haujlwm hauv tsev rau khoom.
- ** Kev Tiv Thaiv **: me ntsis siab dua txiav tsis kam.
3. ** Qib 3** (5 Newtons / 509 grams)
- **Siv Case**: Muaj kev pheej hmoo txiav qis, xws li tuav cov hlau lossis iav hauv chaw tsim khoom.
- ** Kev Tiv Thaiv **: Kev tiv thaiv nruab nrab ntawm kev txiav.
4. ** Qib 4 ** (10 Newtons / 1,020 grams)
- **Siv Case**: Cov kev pheej hmoo siab dua, xws li kev tuav iav, kev tsim hlau, lossis cov cuab yeej ntse.
- ** Kev tiv thaiv **: qib siab ntawm kev txiav kev tiv thaiv kom nquag raug rau cov khoom ntse.
5. ** Qib 5 ** (20 Newtons / 2,040 grams)
- **Siv Case**: Kev txiav txim siab hnyav hauv kev lag luam xws li kev tsim cov hlau hnyav, kev ua haujlwm hauv tsheb, thiab kev tsim iav.
- ** Kev Tiv Thaiv **: Qhov siab tshaj plaws txiav tsis kam.
Qhov txawv ntawm ANSI thiab EN 388:
- ** Txoj Kev Ntsuas **: ANSI ntsuas hauv grams ntawm lub siab siv los txiav cov khoom, thaum EN 388 siv Newtons nrog lub voj voog.
- **Cut Levels**: ANSI muaj ntau qhov ntau ntxiv nrog rau qib A1 txog A9, thaum EN 388 siv qib 1 txog 5, ua rau ANSI tshwj xeeb rau cov ntawv thov kev pheej hmoo siab.
- ** Daim Ntawv Thov **: Ob qho qauv siv dav, tab sis ANSI muaj ntau dua hauv North America, thaum EN 388 tau siv dav hauv Tebchaws Europe.
Xaiv Txoj Cai Txiav Qib:
- ** Tsawg Txiav Risk **: Rau kev ua haujlwm lub teeb, xws li kev saib xyuas lossis kev sib dhos, ANSI qib A1-A2 lossis EN 388 qib 1-2 hnab looj tes yog txaus.
- **Txoj Kev Txiav Txim Siab **: Rau cov khoom siv xws li iav lossis hlau, lossis ua haujlwm nrog cov cuab yeej ntse, ANSI qib A3-A5 lossis EN 388 qib 3-4 hnab looj tes muab kev tiv thaiv zoo dua.
- **High Cut Risk**: Nyob rau hauv ib puag ncig xws li hlau fabrication los yog automotive manufacturing nrog ntse hniav los yog cov khoom hnyav, ANSI qib A6-A9 los yog EN 388 qib 5 yog qhov zoo tagnrho rau kev nyab xeeb siab tshaj plaws.
Kev xaiv qhov raug txiav tsis zoo yog nyob ntawm qhov kev pheej hmoo tshwj xeeb hauv qhov chaw ua haujlwm, sib npaug dexterity, kev nplij siab, thiab kev tiv thaiv.
