Zhongxi is a complete laboratory for analysis and testing, also an audited contract laboratory.We can provide a wide range of chemical analysis and material testing services to a diverse international customer base.Our expertise and years of experience enable us to choose the right analytical methods and generate the accurate data needed to solve your toughest problems.
Business range
■ Cosmetics: body lotion, facial cleanser, nail polish, perfume and toilet water, glycerol
■ ersonal cleansing products: toothpaste, soap, shampoo, shampoo, hair conditioner, hair cream, bath lotion
■ Cleaning Products: washing power, laundry soap, dish washing detergent, laundry detergent, laundry paste
■ Other: hair gel, hair oil, candles, shoe polish, oil jacket
■ Material: flavor, spices, aloe vera juice, powder, balm
Cosmetics
General indicators: lead, arsenic, mercury, methanol Hygiene index: PH, cadmium, strontium, total fluorine, total selenium, hydroxide, boric acid and boric acid salts, formaldehyde, phenol, sex hormones, sunscreen agents, preservatives, dyes, antibiotics, vitamins, soluble zinc salt. Chemical banned, restricted substances: diethylene glycol, heavy metals, colorings, preservatives, methanol, formaldehyde. Microbial: total number of bacteria, fungi and yeast, fecal coliforms, Pseudomonas aeruginosa, Staphylococcus aureaus, Shigella, Salmonella. Toxicology: acute toxicity, irritation, corrosive, sensitive test.
Toothpaste
Sensory indicators: cream, fragrant. Physical indicators: pressure extrusion paste, consistency, foam volume, stability, excellent particle, PH, diethylene glycol, the total fluorine content, soluble fluoride, heavy metals, arsenic.
Health indicators: total number of bacteria, Staphylococcus aureus, Pseudomonas aeruginosa, fecal coliforms, Pseudomonas aeruginosa, Staphylococcus Staphylococcus, Shigella, Salmonella.
Soap, cloth-washing soap
Sensory index: packaging appearance, physical appearance of soap, gas. Physical indicators: dry soap content, the total effective matter content, total free alkali, water insoluble, chloride, ethanol insoluble, water and volatiles, free caustic, foaming power.
Detergent
Dishwashing detergent: Sensory indicators: appearance, odor Physical indicators: active substance content, PH, detergency, fluorescent brighteners, methanol, formaldehyde, arsenic, heavy metals Microbiology: total bacterial count, coliform Food Equipment detergent: Sensory indicators: appearance, odor Physical indicators: arsenic, heavy metals, colorings, preservatives, fluorescent brighteners Microbial: total number of bacteria, fecal coliforms, Pseudomonas aeruginosa, Staphylococcus aureaus, Shigella, Salmonella, etc.
Experiment flow
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Liquid soap
Sensory indicators: appearance, odor, stability Physical indicators: total active matter, PH, methanol, formaldehyde, arsenic, heavy metals Microbial indicators: total number of bacteria, fecal coliforms, Pseudomonas aeruginosa, Staphylococcus aureaus, Shigella, Salmonella, etc.
Lotion
General indicators: lead, arsenic, mercury Hygiene index: PH, appearance, aroma, heat resistance, cold resistance Microbial: total number of bacteria, Staphylococcus aureus, Pseudomonas aeruginosa, fecal coliforms, Pseudomonas aeruginosa, Staphylococcus aureus, Shigella, Salmonella, etc.
Washing powder
Physical indicators: appearance, apparent density, total active matter content, polyphosphate, PH, phosphorus pentoxide, total alkalinity and free alkalinity
Performance indicators: detergency
Shampoo
Sensory indicators: appearance, color, aroma Physical indicators: PH, viscosity, and effective material, foam, heat resistance, cold resistance
Hair-dye
Appearance, odor, PH, oxidants, heat resistance, cold resistance
Other washing products
Physical items: water, ash, total alkaloids, free alkali, vitamin, loss on drying, minerals, heavy metals, vitamins, viscosity, refractive index, specific gravity, freezing point, melting point Inorganic: Zn, Sn, Hi, P, Si, Cu, As, Al, K, SO2, soluble heavy metals. Organic compounds: chloride, fluoride, propylene glycol, polyethylene glycol, diethylene glycol, organic chlorine, organic phosphorus, ethanol, benzene diamine, polyethylene, organic acids, total alcohol. Additives: surfactants, non-surface active agent, wetting agent, glycerin, citric acid, preservatives, betaine, sorbitol acid. Ingredients: flavor, complex basin ketone, benzyl acetate, ethyl propionate, ethyl butyrate, butyl butyrate, isoamyl butyrate, isoamyl ethyl ester, ethyl caproate, ethyl benzoate, benzene ethanol, citral, natural menthol, ethyl vanillin.
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