RS ISO 18857-2: 2009 WATER QUALITY — DETERMINATION OF SELECTED
ALKYLPHENOLS —
PART 2: GAS CHROMATOGRAPHIC-MASS
SPECTROMETRIC DETERMINATION OF
ALKYLOPHENOLS, THEIR ETHOXYLATES AND
BISPHENOL A IN NON-FILTERED SAMPLES
FOLLOWING SOLID-PHASE EXTRACTION
DERIVATISATION
27,000.00
21
567,000.00
2
Rwanda Standards
RS ISO 8504-1: 2019 PREPARATION OF STEEL SUBSTRATES BEFORE
APPLICATION OF PAINTS AND RELATED PRODUCTS
— SURFACE PREPARATION METHODS —
PART 1: GENERAL PRINCIPLES
