Kev cai raukraft ntawv cement sackssib txawv raws cheeb tsam, tsom rau kev ua haujlwm ntawm cov tshuab, kev nyab xeeb, kev ua raws li ib puag ncig, thiab rov ua dua tshiab. Hauv qab no yog cov kev cai tseem ceeb rau kev lag luam loj:
European Union (EU)
Core Standards & Cov Lus Qhia
- PPWR (EU 2025/40) Ntim & Ntim Cov Cai Tswj Cov Khoom Siv khib nyiab
- Kev rov ua dua tshiab: Ntau dua lossis sib npaug li 70% los ntawm 2030; Ntau dua lossis sib npaug li 80% los ntawm 2038.
- Cement sacks (nrog rau ntau phab ntsa kraft) yuav tsum tau sib xws nrog cov txheej txheem rov ua dua tshiab.
- EUDR (Deforestation-Free Regulation)
- Kraft daim ntawv yuav tsum yog los ntawm zero-deforestation sources (post-2020-12-31).
- Yuav tsum tau mob siab rau, taug qab, thiab cov ntaub ntawv nrhiav chaw nyob.
- Ntim Cov Lus Qhia 94/62/EC
- Cov hlau hnyav (Pb + Hg + Cd + Cr⁶⁺) Tsawg dua lossis sib npaug li 100 mg / kg tag nrho.
- Daim ntawv rov ua dua lub hom phiaj: 60% los ntawm qhov hnyav.
- EN Standards
- EN 1086-1/-2: Multi-wall paper sacks for cement (lub zog, poob xeem, sift-proofing).
- EN 643: Cov ntaub ntawv rov ua dua tshiab rau kev tsim cov hnab ntim khoom.
- Khoom siv & Kev tsim kho
- Feem ntau 3-5 plies ntawm hnab kraft ntawv (80–120 g / m² ib ply).
- Water-resistant coatings/barriers rau sab nraum zoov cia; seams yuav tsum sift-proof.
Tebchaws Meskas
Tsoom Fwv Teb Chaws Txoj Cai (DOT 49 CFR 178.521)
- UN 5M1 / 5M2 kev faib tawm rau cov hnab ntim cement:
-5M1: Multi-wall kraft (Ntau dua lossis sib npaug rau 3 plies), max 50 kg; seams sift-proof.
- 5M2: Water-resistant version (4+ plies nrog barrier los yog 3-ply nrog cov dej-resistant ply); seams waterproof.
- Khoom siv: Yuav tsum siv cov ntawv kraft uas tsim nyog nrog lub zog tensile / tawg.
Xeev & Environmental Rules
- TPCH (Tshuaj lom hauv ntim Clearinghouse)
- Cov hlau hnyav tsawg dua lossis sib npaug li 100 ppm tag nrho; PFAS / phthalates txwv (tsawg dua lossis sib npaug li 100 ppm).
- Daim ntawv tshaj tawm ua raws (CoC) xav tau rau kev lag luam hauv xeev.
- ASTM Txuj
- ASTM D7238: Kev sim cov txheej txheem rau ntau-phab ntsa ntawv hnab.
- ASTM D3985: Water vapor transmission rate (WVTR) for barrier layers.
National Standard GB/T 9774-2020 (Cement Ntim Hnab)
- Khoom specifications rau kraft ntawv hnab
- Qhov hnyav: Ntau dua lossis sib npaug li 75 g / m² rau ib lub ply; Tag nrho Ntau dua lossis sib npaug li 225 g / m² rau 3-ply.
- Tensile load (warp): Ntau dua lossis sib npaug li 500 N; bursting zog Ntau tshaj los yog sib npaug rau 850 kPa.
- Max peev: 50 kg; kub tsis kam Tsawg dua los yog sib npaug li 80℃.
- Ib puag ncig
- Txwv tsis pub cov txheej txheem PVC; txhawb nqa cov khoom siv fiber ntau (Ntau dua lossis sib npaug li 20% hauv ntau thaj tsam).
- Cov hlau hnyav tsawg dua lossis sib npaug li 100 mg / kg (raws li EU / US).
- Cov qauv sib xws
- GB/T 24287: Extensible sack kraft paper.
- GB/T 7968: Daim ntawv sacks cov kev cai dav dav.
Nyiv
JIS Standards
- JIS Z 1505: Kraft ntawv hnab rau cov cement (kev tsim kho, lub zog, kev sim poob).
- JIS R 5210-5214: Portland cement packaging compatibility.
- Ib puag ncig
- Tus nqi rov ua dua lub hom phiaj: 60% rau cov ntawv ntim khoom.
- Kev txwv rau cov hlau hnyav thiab cov txheej txheem tsim kev puas tsuaj.
Southeast Asia (Indonesia, Thaib teb, thiab lwm yam)
- Indonesia (SNI 8053.2: 2015)
- Qhia qhov hnyav, tuab, tawg / tensile lub zog, thiab noo noo tsis kam rau cement sack kraft.
- Tuav daim ntawv lo thiab cov txheej txheem tshuaj xyuas zoo.
- Kaus Lim Qab Teb (KS T 1065-2015)
- Sewn kraft paper sacks for cement: ply count, strength, drop-test performance, and sift-proofing.
International Benchmarks (ISO)
- TS EN ISO 187: Kev ntsuas cov ntawv xeem.
- ISO 536: Grammage (qhov hnyav) ntsuas
- TS EN ISO 1924-2: Tensile zog ntawm daim ntawv
- TS EN ISO 2758 Lub zog ntawm daim ntawv
- TS EN ISO 6590-1: Ntim -sacks- lus thiab hom.
