View Historical Standards for D4148:

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Document Designation and Title Year Select Item(s) D4148 Standard Test Method for Analysis of Phytoplankton in Surface Water by the Sedgwick-Rafter Method 82(2004) D4148 Standard Test Method for Analysis of Phytoplankton in Surface Water by the Sedgwick-Rafter Method 82(1998)e1 D4148 Standard Test Method for Analysis of Phytoplankton in Surface Water by the Sedgwick-Rafter Method 82(1998)