Details: turbidity (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) - 400 ntu-standard 100 ml/bottle iso- 17034 certified potassium chloride (kcl)-500gm/pkt cone. sulphuric acid-(ar grade)-500ml/bottles ph buffer solution (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) — 4.01-(500ml/bottle) iso-17034 certified ph buffer solution (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) — 7.00-(500ml/bottle) iso-17034 certified ph buffer solution (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) — 9.18.00-(500ml/bottle) iso-17034 certified sodium carbonate (na2co3) (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 80 grm/pkt iso- 17034 certified calcium carbonate (caco3)
Sector: Water supply and Sewerage