usepa approved dpd method water testing

{"cid":"91225496","title":"HACH 2119449-CN USEPA Approved Free Chlorine Reagent with DPD Method 8021 in Powder Pillows for Water Quality Testing.","imgUrl":"https:\/\/img.chinax.com\/nimg\/a2\/11\/077e4bc53797897285e4a5acba10-200x200-1.jpg","attrs":{"Price":"49.9 SUD","Brand Name":"HACH","Model Number":"2119449-CN","Minimum Order Quantity":"1","Delivery Time":"6-8WEEK","Datastorage":"Internal memory with capacity for thousands of readings","Dimensions":"Varies, e.g., handheld approx. 200x80x40 mm","Measurementparameters":"pH, Dissolved Oxygen, Turbidity, Conductivity, Total Dissolved Solids (TDS), Chlorine, Ammonia, Nitrate, Phosphate","Weight":"Typically between 200g to 1.5kg depending on model","Calibration":"Automatic or manual calibration with standard solutions","Powersource":"Battery-powered or AC adapter","Portability":"Handheld or benchtop models available","Waterproofrating":"IP67 or higher for handheld devices","Payment Terms":"T\/T","Supply Ability":"1PC 6-8WEEK","Accuracy":"Typically \u00b10.01 pH, \u00b10.1 mg\/L DO","Operatingtemperature":"0\u00b0C to 50\u00b0C","Dataoutput":"USB, Bluetooth, RS232, or SD card","Productname":"Water Quality Analyzers","Measurementrange":"Varies by parameter, e.g., pH 0-14, DO 0-20 mg\/L","Displaytype":"LCD or Digital Screen","Responsetime":"Typically less than 30 seconds"}}

{"cid":"91205731","title":"Fsc Approved 7 In 1 Aquarium Test Strips Pond Fish Tank Water Test Kit","imgUrl":"https:\/\/img.chinax.com\/nimg\/68\/6e\/beed7d708ff5d1e49ead603fabdb-200x200-1.jpg","attrs":{"Price":"USD4.8\/bottle","Brand Name":"INVBIO","Model Number":"INV-1205","Minimum Order Quantity":"100 boxes","Delivery Time":"3-5 days after receiving payment","Certification":"CE, FSC","Place of Origin":"China","Payment Terms":"T\/T, Western Union","Supply Ability":"1million per day","Packaging Details":"2 bottles per box, 50 boxes per carton","Name":"7in 1 Aquarium Test Strips-Pond Fish Tank Water Test Kit","Format":"Strip","Accuracy":">99%","Specimen":"Water","Packing":"50 tests\/box; 100 tests per box","Shelf life":"24 months","Ammonia Nitrogen Testing Range":"1-10-50-100-200-500 (mg\/l) or (ppm)","Purpose":"Aquarium, Fish Tank, Betta Tank, Pond"}}

{"cid":"91198828","title":"HACH 2105669-CN DPD Total Chlorine Reagent Powder Pillows 10 ML Pk\/100","imgUrl":"https:\/\/img.chinax.com\/nimg\/d1\/c3\/18aaae11a5be1818b059c3fba78e-200x200-1.jpg","attrs":{"Brand Name":"HiYi","Model Number":"2105669-CN","Minimum Order Quantity":"1","Delivery Time":"3-7 days","Storage Conditions":"10 \u00b0C to 25 \u00b0C","EPA compliant":"Yes","Parameter":"Total Chlorine, Bromine, Iodine","Reference method":"SM 4500-Cl G","Method":"8167","Certification":"CE","Place of Origin":"China","Supply Ability":"1000 set\/month","Packaging Details":"paper carton"}}

{"cid":"91182299","title":"High Temp Flexible Silicone Tubing Rubber Tubing Solid Material With SGS Approval","imgUrl":"https:\/\/img.chinax.com\/nimg\/b7\/f9\/59235fe7ac050e8532c77c6321e0-200x200-1.jpg","attrs":{"Price":"Negotiate","Model Number":"Silicone Rubber Tubing","Minimum Order Quantity":"1000meters","Delivery Time":"5-7days","Certification":"SGS","Place of Origin":"China","Payment Terms":"TT","Supply Ability":"50000meters \/day","Packaging Details":"Roll"}}