Who We Are
We are a professional water testing laboratory specializing in chemistry and microbiological analysis of drinking water. Our mission is to ensure that the water you consume or distribute meets the highest standards of safety.
Why Water Testing Matters
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Ensures health and safety by detecting harmful chemicals and microorganisms.
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Confirms compliance with national and international standards (WHO, SAZ, etc.)
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Builds trust and credibility for your brand.
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Protects consumers from risks such as contamination, spoilage, and waterborne disease.
How We Work
Sample Collection
Safe, sterile collection for accurate results.
Reporting
Clear results with interpretation for easy decision-making.
Laboratory Testing
Using modern instruments and approved standard methods (Following ISO standards and WHO guidelines)
Support
Advice on corrective measures if water does not meet standards.
Chemical Tests
SERVICES
Chemical tests assess water quality, ensuring safety, taste, and regulatory compliance.
1
Color
Purpose: Detects abnormal
coloration, which may indicate
contamination or chemical
issues.
Method: Spectrophotometer
for precise measurement.
Result Interpretation:
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Clear/transparent: Normal and safe.
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Yellowish, brownish, or cloudy: Could indicate organic matter, iron, manganese, or microbial growth.
Practical Importance: Ensures
water or beverage looks
appealing and indicates if
further testing is required.
2
Taste
Purpose: Detects off-flavors or
unusual taste that may indicate
chemical or microbial
contamination.
Method: Trained sensory panel
and professional tasting (small,
safe samples).
Result Interpretation:
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Neutral/fresh: Acceptable quality.
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Bitter, metallic, salty, or chemical taste: May indicate contamination (e.g., chlorine overdose, metals, or organic spoilage).
Practical Importance: Ensures
consumer acceptability and
detects hidden chemical issues.
3
Odor
Purpose: Detects unusual smells
which can be a sign of
contamination.
Method: Smell test using
trained personnel in a controlled
environment.
Result Interpretation:
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Odorless or fresh: Normal.
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Sulfuric, musty, or chemical odors: Indicates contamination, microbial growth, or chemical residues.
Practical Importance: Provides
early warning for safety and
quality problems.
4
Total Dissolved Solids (TDS)
Purpose: Measures the total
concentration of dissolved
substances in water, including
minerals like calcium, magnesium,
sodium, and potassium, as well as
small amounts of organic
compounds. High TDS can affect
taste, scaling in pipes, and overall
water quality.
Method: Measured using a TDS
meter.
Result Interpretation:
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<300 mg/L: Excellent quality, tastes fresh.
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300 - 600 mg/L: Good quality, acceptable taste.
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600 - 1000 mg/L: Fair quality, may taste slightly salty or mineralized.
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>1000 mg/L: Poor quality, may affect taste and indicate excessive dissolved salts.
Practical Importance: Helps monitor water treatment efficiency by indicating potential issues with source water or contamination.
5
Turbidity Testing
Purpose: Measures the presence
of suspended solids in water or
beverages.
Method: Measured using a
turbidimeter.
Result Interpretation:
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<1 NTU: Excellent clarity.
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1 - 5 NTU: Acceptable for drinking water.
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>5 NTU: Cloudy; may indicate contamination requires further testing or treatment.
Practical Importance: Protects
consumer health by detecting
potential microbial hiding spots.
6
pH Measurement
Purpose: Determines acidity or
alkalinity of water.
Method: Digital pH meter.
Result Interpretation:
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pH 6.5 - 8.5: Generally safe for consumption.
-
Outside range: May cause corrosion or taste issues.
Practical Importance: Protects
equipment, ensures water taste
and safety.
7
Water Hardness (Calcium & Magnesium)
Purpose: Measures mineral content contributing to
water hardness.
Method: EDTA titration.
Result Interpretation:
Soft (0-30 mg/L): Minimal scaling.
Moderate (61-120 mg/L): Minor scaling.
Hard (121-180 mg/L): Possible scaling, taste
changes.
Very Hard (>180 mg/L): Significant scaling in pipes
and equipment.
Practical Importance: Helps optimize water
treatment and protects equipment.
8
Residual Chlorine
Purpose: Confirms disinfection in treated water.
Method: DPD colorimetric method.
Result Interpretation:
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0.2 - 0.5 mg/L: Safe and effective.
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Above 1 mg/L: May affect taste.
Practical Importance: Confirms microbiological
safety of water.
9
Sulphates, Nitrates, and Heavy Metals
Purpose: Detects potential chemical contaminants.
Method: Colorimetric assays, Atomic Absorption Spectroscopy (AAS), or Ion Chromatography.
Result Interpretation: Values above regulatory limits indicate health risks or taste problems.
Practical Importance: Protects consumer health and ensures regulatory compliance.
10
Biochemical Oxygen Demand (BOD)
Purpose: Measures organic pollution in water.
Method: Incubation of water sample for 5 days at 20°C
and measuring oxygen consumption.
Result Interpretation: Higher BOD indicates more
organic pollution.
Practical Importance: Used in wastewater management and environmental compliance. Nitrates and Nitrites are important in assessing contamination from fertilizers.
Microbiology Tests
SERVICES
Microbiological testing helps to identify harmful or spoilage microorganisms in water or beverages.
1
Escherichia coli (E. coli)
Purpose: Indicator of faecal contamination through detection of harmful bacteria.
Method: Membrane filtration
Result Interpretation:
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Absent: Water is considered safe from faecal.
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Present: Suggests possible sewage contamination; immediate action needed.
Practical Importance: Protects consumers from diarrheal diseases and outbreaks such as cholera, typhoid, etc.
2
Total Coliforms
Purpose: Detect overall bacteria contamination.
Method: Membrane filtration
Result Interpretation: Higher counts indicate poor sanitation or water treatment failure.
Practical Importance: Early warning system for water safety and hygiene.
3
Pseudomonas Aeruginosa
Purpose: Detects opportunistic pathogens, especially in bottled water or cooling systems
Method: Culturing with selective agar media.
Result Interpretation: Presence indicates risk to immunocompromised consumers.
Practical Importance: Ensures product safety and regulatory compliance.
4
Yeast and Mold Count
Purpose: Identify fungal contamination.
Method: Spread or pour plate method to detect fungal growth.
Result Interpretation:
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Low Counts - Acceptable quality.
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High Counts: Indicates spoilage risk.
Practical Importance: Prevents product spoilage, off-flavors, and potential allergic reactions.
5
Aerobic Microbial Count
Purpose: Measures overall bacterial population at 20 degrees celsius and 37 degrees celcius
Method: Plate Count Agar Incubation
Result Interpretation: High counts may indicate contamination, improper handling or storage issues.
6
Total Microbiology Test
This service includes a combination of all microbiology tests.
Why LABVS?
Accurate Results
Our state of the art equipment paired with experienced
professionals ensure precision and the highest quality.
Expert Analysis
Experienced professionals using validated methods.
Our team of scientist provide detailed reports including
recommendations.
Regulatory Compliance
Tests follow SAZ, WHO, and international standards.
Quick Turnaround
Timely results to support business operations without
compromising the standard quality of our results.
Contact LABVS
LABVS
Water Analysis Laboratory - Chemistry and Microbiology
Email: labvs@lalapanzibeverages.com | Phone: 08688 009 053
Services We Provide
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