Medical ultrapure water machine related water quality standard of ultrapure water machine

When using the ultra pure water machine, we need to understand the purpose Understanding the purpose is to understand the water quality standards we need Today, we will sort out the water quality standards related to medical water: 1 Purified water in Chinese Pharmacopoeia (2016 Edition): Project: purified water in Chinese Pharmacopoeia (2016 Edition): source This product is made by distillation, ion exchange, reverse osmosis or other suitable methods It is colorless, clear liquid, odorless, tasteless, pH 5.0-7.0 Qualitative detection of oxides, sulfates, calcium salts and carbon dioxide nitrate < 0.06PPM < 0.06PPM Ammonia < 0.3ppm < 0.2ppm heavy metal < 0.5ppm < 0.5ppm No more than 100 bacterial endotoxins per 1ml of total microorganism - < 0.25eu/ml Conductivity (25 ℃) < 5.1 μ s / cm < 1.3 μ s / cm total organic carbon < 0.50mg/l < 0.50mg/l 2、 Cap ASTM NCCLS type I Type II type III type I type II type III type I resistance （MΩ.cm.25C ) ≥10 0.5 0.2 ≥16.66 1.0 1.0 ≥10 Silicon (mg / l.max) 0.01 0.01 0.01—————— 0.05 heavy metal (mg / l.max) 0.01 0.01 0.01———— ————Potassium permanganate disinfection (min) 60 60 60 60 60 - sodium (mg / l.max) 0.01 0.01 0.01 ------ ammonia (mg / l.max) 0.01 0.01 0.01 ------ 10 microorganisms Little, little, little -- 10 PH 6.0-7.0 6.0-7.0 6.0-7.0 -- 6.2-7.5—— III water quality requirements for cleaning and disinfection water ws310.1-2016: pollutant category Zui high limit pollutant category Zui high limit Gasification residue 10mg / L chloride ion (Cl -) 2mg / L silica (SiO2) 1mg / L Phosphorus pentoxide (P 2O 5) 0.5mg/l iron 0.2mg/l conductivity (25 ℃) 5 μ s / cm Calcium 0.005mg/l pH 5-7.5 lead 0.05mg/l appearance Colorless, clean and non precipitated heavy metal except iron and calcium lead 0.1mg/l hardness (alkaline earth metal ion) 0.02nmol/l Note: the sample should be taken at the inlet of sterilizer note: the sample should be taken at the inlet of sterilizer note: the purified water source is tap water, and the water quality should meet the requirements of GB5749-2006; the conductivity of purified water should be ≤ 15 μ s / cm (25 ℃); iv the water quality requirements for endoscopic cleaning water ws507-2016 There should be tap water, purified water and sterile water The quality of tap water shall comply with GB5749 The purified water shall meet the requirements of GB5749, and the total number of bacteria shall be no more than 10cfu / 100ml; the pore diameter of the filter membrane used for the production of purified water shall be no more than 0.2 μ m, and shall be replaced regularly Sterile water is the water treated by sterilization process If necessary, the purified water and sterile water shall be tested for microbiology.