Water quality suspended solids analyzer

PLD-11901Determination of suspended solids in water qualityceremonySuitable for surface water and groundwater，Also applicable for the determination of suspended solids in domestic and industrial wastewater.

PLD-11901Determination of suspended solids in water qualityInstrument sampling

The polyethylene or hard glass bottles used for sampling should be cleaned with detergent. Rinse thoroughly with tap water and distilled water in sequence. Before sampling，Wash the water sample to be collected again three times. then，Collect representative water samples500~1000mL，Seal the bottle tightly with a stopper:Uneven solid matter that floats or submerges does not belong to suspended matter，Should be removed from the water sample.

PLD-11901Determination of suspended solids in water qualityceremonySample storage

The collected water samples should be analyzed and determined as soon as possible. If you need to place it，Should be stored4℃ refrigerated container，But the maximum duration shall not exceed seven days. note:No protective agents can be added，To prevent disruption of the distribution balance of substances between solid and liquid.

PLD-11901Determination of suspended solids in water qualityceremonyPreparation of filter membrane

Use flat mouthed toothless tweezers to pick up the microporous filter membrane and place it in a pre weighed weighing bottle with a constant weight，Transfer to the oven103~105After drying at ℃ for half an hour, take it out and place it in a dryer to cool to room temperature，Weigh it. Repeatedly drying, cooling, and weighing，Until the weight difference between the two weighings<0.2mgPlace the constant weight microporous membrane correctly on the membrane tray of the membrane filter，Cover with matching funnel，And fix it with a clamp. Wet the filter membrane with distilled water，And continuously suction and filter.

PLD-11901Water quality suspended solids analyzerdetermination

Measure and mix thoroughly and evenly the sample100mLSuction filtration. Make all the water pass through the filter membrane. Every time10mLWash with distilled water three times in a row and continue to filter to remove trace amounts of water. After stopping the suction filtration, carefully remove the filter membrane containing suspended solids and place it in the original constant weight weighing bottle, then transfer it into the oven103~105After drying at ℃ for one hour, transfer to a dryer and cool to room temperature, then weigh it. Repeatedly dry, cool, and weigh until the weight difference between the two weighings is ≤0.4mguntil.

note:Excessive retention of suspended solids on the filter membrane may carry too much water, which may not only prolong the drying time but also cause filtration difficulties. In this case, it is advisable to take fewer samples as appropriate. If there is too little suspended matter on the filter membrane, it will increase the weighing error and affect the measurement accuracy. If necessary, the sample volume can be increased. Generally speaking5~100 mgThe amount of suspended solids is a practical range for measuring the volume of the sample.

Technical specifications：

‌detection limit‌: Low detectable2mg/L‌3.

Highest accuracy:0.45um；φ50/60mm；

drytemperature control：104±1℃

称重精度：≥0.1mg

Maximum negative pressure value≥80 kPa

Negative pressure adjustment range:20KPaExtreme negative pressure value

pumping speed:≥20L/min

noise sound:≤60dB(A)

electricity source:AC220V±10% 50Hz

Shaanxi Ploudi Measurement and Control Technology Co., Ltd

Factory Address: Xi'an National Aerospace Civil Science and Technology Industrial BaseAdistrict