RS ASTM E1857: 2021 STANDARD GUIDE FOR SELECTING OF CLEANING
TECHNIQUES FOR MASONRY, CONCRETE, AND
STUCCO SURFACES
6,000.00
109
654,000.00
2
Rwanda Standards
RS ISO 14362-3: 2017 TEXTILES — METHODS FOR DETERMINATION OF CERTAIN AROMATIC AMINES DERIVED FROM AZO COLORANTS — PART 3: DETECTION OF THE USE OF CERTAIN AZO COLORANTS, WHICH MAY RELEASE 4-AMINOAZOBENZENE