RWA/576
WTO/TBT
Ruanda - 71 - Chemische Verfahrenstechnik
- 25 - Salz; Schwefel; Erden und Steine; Gips, Kalk und Zement
2022-01-22
2021-11-24
School chalk; Chalk (HS 2509); Other products of the chemical industry (ICS 71.100.99)
DEAS 25:2021, School chalk— Specification, Second edition (22 page(s), in English)
This Draft East African Standard specifies requirements, sampling and test methods for solid white and coloured school chalks intended to be used on chalkboards.