成人做爰免费视频免费看_成人a级高清视频在线观看,成人a大片在线观看,成人a大片高清在线观看,成人av在线播放,一a一级片,一级黄 中国色 片,一级黄 色蝶 片,一级黄色 片生活片

24159-25哈希COD試劑，0-15000mg/L的特點(diǎn)：

· 符合EPA標(biāo)準(zhǔn) EPA Approved：
Low Range （LR） and High Range （HR） vials are approved by the USEPA for reporting of wastewater COD concentrations.
· 操作簡單、安全 Simpler and Safer
Prepared COD reagents eliminate the need for measurement of corrosive and toxic chemicals. Just add sample to the COD vial, digest and measure. Photometric measurements provide accurate results without the equipment and effort required for titrations.
· 廢液極易處理 Easy Disposal
Small reagent volumes used in Hach COD vials minimize the volume of spent silver, mercury and chromium waste. Customers in the contiguous 48 United States benefit from the availability of the ezCOD waste recycling program, which provides comprehensive transportation and disposal of COD vials.

24159-25哈希COD試劑，0-15000mg/L的參數(shù)規(guī)格：

量程Ranges:     300-15000 mg/L
是否需要消解 Digestion Required: 有 Yes
是否符合EPA EPA Compliant: 有 Yes
方法 Method: 消解比色法 Reactor Digestion
方法編號 Method Number:     8000
比色計(jì) Parameter:     化學(xué)需氧量 Chemical Oxygen Demand
包裝 Quantity: 25/pk

------------------------------------------------------------------------------------
作為HACH/哈希的合作伙伴，上海鉑勒機(jī)電設(shè)備有限公司長期備有HACH/哈希品牌的大量水質(zhì)分析儀器及耗材，歡迎閣下來電垂詢！

HACH DR5000紫外分光光度計(jì)，HACH DR5000多參數(shù)水質(zhì)分析儀，HACH DR5000水質(zhì)多參數(shù)分析儀
HACH DR3800便攜式分光光度計(jì)，HACH DR3800多參數(shù)水質(zhì)分析儀，HACH DR3800水質(zhì)多參數(shù)分析儀
HACH DR2800便攜式分光光度計(jì)，HACH DR2800多參數(shù)水質(zhì)分析儀，HACH DR2800水質(zhì)多參數(shù)分析儀
HACH DR890便攜式分光光度計(jì)，HACH DR890多參數(shù)水質(zhì)分析儀，HACH DR890水質(zhì)多參數(shù)分析儀
HACH DR850便攜式分光光度計(jì)，HACH DR850多參數(shù)水質(zhì)分析儀，HACH DR850水質(zhì)多參數(shù)分析儀
HACH DR1010 COD測定儀，HACH DR1010化學(xué)需氧量分析儀，HACH DR1010 COD測定儀
HACH 2100N臺式濁度儀，HACH 2100N濁度儀，哈希2100N臺式濁度儀
HACH 2100AN臺式濁度儀，HACH 2100AN濁度儀，哈希2100AN臺式濁度儀
HACH 2100Q便攜式濁度儀，HACH 2100Q濁度儀，哈希2100Q便攜式濁度儀
HACH 1900C便攜式濁度儀，HACH 1900C濁度儀，哈希1900C便攜式濁度儀