Product Description
Fast Medium Slow Filteration Laboratory Filter Paper Dia 7cm 9cm 11cm 12.5cm 15cm 18cm
Specifications
Product name: Qualitative filter bag
Main material : cotton fibre
Brand: BKMAM
Product Size: diameter 7cm / 9cm / 11cm/ 12.5cm /15cm / 18cm
Pore Size: 80-120um for fast speed;
30-50um for medium speed;
1-3um for slow speed
Color : white natural color
Certification : ISO 9001
Pack: 100pcs/ pack and shrink-wrapped for purity and cleanliness
* Manufactured to reduce silicon dioxide, calcium oxide and ferric oxide levels
* Made from high-quality cotton, washed in hydrochloric acid and neutralized in an ultrapure water rinse
* Limited wet strength, suitable for gravity or low-suction filtration; should be used with care to avoid rupturing
* Non toxic and odorless
Detailed Photos
Fast Medium Slow Filteration Laboratory Filter Paper Dia 7cm 9cm 11cm 12.5cm 15cm 18cm
- high quality cotton material
- fast speed/ medium speed/ slow speed models available
- size 7cm 9cm 12cm 15cm 18cm available
- thickened material, not easy to get broken
- Weak acid and alkali resist
- CE & ISO 9001:2015 certificated
Quantitative filter paper VS Qualitative filter paper
* The difference between the two is that the quality of the ash after ignition is different. The ash content of the quantitative filter paper is very low, it can be ignored in gravimetric analysis. While qualitative filter paper has a lot of ash after burning,
which is not suitable for gravimetric analysis.
* qualitative filter paper is used for qualitative chemical analysis and corresponding filtration separation, and quantitative filter paper is used for gravimetric analysis test and corresponding analysis test in quantitative chemical analysis
Operational Steps
1.Fold the filter paper in half, twice in a row, and fold it into a 90°center-shaped funnel.
2.Press the folded filter paper into three layers on one side and one layer on the other side to form a funnel.
3.Put the funnel-shaped filter paper into the funnel.The edge of the funnel. Fill the funnel with clean water so that the soaked filter paper is close to the inner wall of the funnel. Pour out the remaining clean water and set aside.
4.Place the funnel with the filter paper on the filter funnel rack (such as on the iron stand, on the ring), Place a filter
beaker or test tube under the funnel neck, and lean the tip of the funnel neck against the wall of the receiving container.
5.When injecting the liquid to be filtered into the funnel, hold the liquid cup in the right hand and the glass rod in the left.
make the cup mouth close to the glass rod, and the filtered liquid will flow out from the cup mouth. Then flow into the funnel
obliquely along the glass rod, leaving the liquid in the leakage body, and the liquid level cannot exceed the height of the filter paper in the funnel.
6.When the liquid passing through the filter paper flows down the neck of the funnel, check whether the liquid flows down the wall of the cup and fill it to the bottom of the cup. Otherwise, you should move the beaker or rotate the funnel to make the tip of the funnel and the wall of the beaker stick firmly. You can make the liquid flow down the wall of the cup.
Packaging & Shipping
Safety package for all products from BKMAM factory
Sterile package on strile urine cup: strong and durable zip lock bag suitable for EO sterilization process and protect the centrifuge tubes
Most urine cups model are in stock and we have large daily production capacity.
Sample order or small trial order will be deliver within 48 hours by express like DHL, Fedex, UPS or TNT to you.
Production l ead time for customized order and bulk order is about 2 weeks, and then the products will be send to you by air or by sea as to your requirements.
Certificate & customer review
BKMAM have the professional QC team with advance technology and high quality standard to confirm all products produced in our factory are competitive and most welcomed lab consumables.
Produced in 100,000 level Clean Work Shop, BKMAM sterile plastic cryogenic tube is under extremely strict quality control and qualified with CNAS Sterile Certificate, ISO9001, CE certificate and are FDA approved
Company Profile
BKMAM is an professional lab and medical consumable supplier located in Hunan, China. Modernized workshop and warehouse covers 260,000 square meter, 100,000 level purification workshop , high technology eo sterile machine, injection molding machine, plastic blister machine and packing machine are all available here.
Exhibition Show
FAQ
1. Do you provide sample?
Yes, sample available here and sample charge free.
Please leave your delivery address and contact information here for sample delivery.
2.Do you provide OEM service?
Yes, OEM order is welcome.
3. What is your MOQ?
Most of our products are stock available, so MOQ 1 piece for stock products.
And for non stock products, please confirm with us on the MOQ for production.
4. What is product lead time?
For stock available products, we will send out within 2 work days.
For non stock products, delivery time will be 7-20 work days depend on your order quantity and our production arrangement.
5.what is the delivery method?
Genrally sample or trial order will be send by FeDex, UPS, DHL which takes about 7 days.
Mass order will be send by air and by sea according to your requirement.
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว 
