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
12
324,000.00
2
Rwanda Standards
RS ISO 13769: 2018 GAS CYLINDERS — STAMP MARKING
28,500.00
22
627,000.00
3
Rwanda Standards
RS ISO 6222: 1999 WATER QUALITY — ENUMERATION OF CULTURABLE MICROORGANISMS — COLONY COUNT BY INOCULATION IN NUTRIENT AGAR CULTURE MEDIA
