bids are invited for glass microfiber (gf/a) filter; 8x10inch (203 x 254mm diameter) for pm10 - filter thickness:0.26 mmfilter size:203 mm x 254 mm (8”x10”) weight: 53 g/m2particle retention:1.6 µmoperating temperature (celsius):500 tensile strength: 5.5 n/15mmwet burst:2kpaair flow rate: 4.3s/100ml/in2packing: 100 sheets per boxmaterial: high quality 100% binder free borosilicate micro glass fibertrace metal compositions-µg/g paper: as- 5, be, <1, co<1, cd<1, cu<1, pb-5, mn-6, ni-1, se<3, ag<1, hg<1requirement: certificate of analysis (coa); data sheet with all above mentioned technical specifications; manufactured in iso 9001:2015 facility-certificate thereof. , air monitoring membrane for pm 2.5,ptfe, w/pp ring, 46.2mm - filter diameter: 46.2 ± 0.25 mm filter media:ptfe teflon®filter pore size:2µ (maximum)support ring media:polypropylene total support ring thickness:0.365 mm; ± 0.055 mm support ring width:3.68 mm (+ 0.00 mm, -0.51 mm) particle retention (0.3 µm): = 99.7 % pressure drop (0.3 µm): = 30 cm h2o @ 16.67 l/mintemperature-weight loss stability: = 20 µg / filter discdrop test-weight loss stability:= 20 µg / filter disc moisture-weight gain stability:= 10 µg / filter disc filter paper should have very low background concentration for iron and elements:low signal alkalinity:= 25 µeq /g of filter maximum trace element concentration-ng/cm2: al-94.4, si-32.8,p-22.6, s-13.4, cl-9.4, k-5.6, ca-8.2, rb-2, br-2,ba-32.2,sn-15.2packing:packed in two sets of 25 clear, hard, dust tight & non- contaminating plastic containers. sequentially numbered on individual filters:lot number & serial number according to epa acceptance criteria.requirement: certificate of analysis (coa); data sheet with all above mentioned technical specifications; manufactured in iso 9001:2015 facility-certificate thereof. , ashless paper filter, grade 42 - filter diameter: 125 mmfilter shape: pyramid folded-ready to usefilter media:celluloseparticle retention (liquid):2.5µm (maximum)ash: 0.007%