
imagwiritsidwa ntchito popanga utoto wachikasu ngati mkaka m'makampani opanga magalasi ndi enamel, utoto wachikasu womwe umagwiritsidwa ntchito m'makampani opanga mapepala. Imagwiritsidwa ntchito ngati mchere wothira utoto m'makampani opanga makina osindikizira ndi utoto. Mumakampani opanga zinthu zopanda organic, imagwiritsidwa ntchito popanga mchere wina wa lead ndi lead dioxide. Mumakampani opanga mankhwala, imagwiritsidwa ntchito popanga zinthu zolimbitsa thupi. Imagwiritsidwa ntchito m'makampani opanga migodi ngati chopangira kuyandama kwa miyala. Kuphatikiza apo, imagwiritsidwanso ntchito ngati oxidant popanga machesi, zozimitsa moto, ndi zinthu zina zowunikira mankhwala.
| SN | Zinthu zoyesera | Chofunikira | Zotsatira za mayeso |
| 1 | Kuyesa (monga Pb (NO3)2% | ≥98 | 99.43 |
| 2 | Madzi osasungunuka, % | ≤0.2 | 0.05 |
| 3 | Chinyezi (H2O), % | ≤1.7 | 0.072 |
| 4 | Mkuwa()monga Cu), % | ≤0.002 | 0.000058 |
| 5 | Chloride()monga Cl), % | ≤0.1 | 0.07 |
| 6 | Asidi waulere (monga HNO3) | ≤0.5 | 0.45 |
| 7 | Maonekedwe | Krustalo woyera | Krustalo woyera |