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Qassim Central Laboratory

Active

Certificate number

N-T-00680

Start date

4/10/2025

End date

4/9/2028

Service type

Testing Laboratory

Accreditation specification

ISO/IEC 17025:2017

Main field

Water

Address

Buraidah

Phone

0535556866

malchrani@nwc.com.sa

Notes

Validity of the accreditation

Website

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اسم الاختبار	المنتج / المادة	طريقة العمل / المواصفة	التقنية / الجهاز المستخدم
pH	Water	SM 4500 H⁺ B, APHA 24th Edition	Electrometric Method/pH Meter
Turbidity	Water	SM 2130-B, APHA 24th Edition	Nephelometric Method/Hach 2100Q
Conductivity	Water	SM 4500 H⁺ B, APHA 24th Edition	Electrical Conductivity/Conductivity Meter HQ 440d
Color	Water	SM 2120 C, APHA 24th Edition	MN Color Program/Spectrophotometer NANOCOLOR UV/VISII
Free Chlorine	Water	SM 4500-Cl G, APHA 24th Edition	Photometric Determination/Spectrophotometer (DR6000 and DR300)
Total Coliforms	Water	SM 9223 B, APHA 24th Edition	MPN Method/IDEXX Colilert-18 Test Kit
Escherichia coli	Water	SM 9223 B, APHA 24th Edition	MPN Method/IDEXX Colilert-18 Test Kit
Intestinal Enterococci	Water	SM 9230 D, APHA 24th Edition	MPN Method/IDEXX Enterolert Test
Sampling	Potable Water	ISO 5667-3: 2024 ISO 5667-5: 2005	Grab & Composite sampling / Digital thermometer, pH-meter, and chlorine-meter.