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API STD 521: Guide for Pressure-relieving and Depressuring Systems – Edition 6

$

682

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API STD 653: Tank Inspection, Repair, Alteration, and Reconstruction – Edition 4

$

507

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CSA Z662:19 – Oil and gas pipeline systems

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1197

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CSA Z341 Series-18: Storage of hydrocarbons in underground formations

$

878

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CSA Z246.2-14 – Emergency preparedness and response for petroleum and natural gas industry systems

$

596

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CSA Z341 Series:22 – Storage of hydrocarbons in underground formations

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878

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CSA Z731-09 (R2014) – Emergency Preparedness and Response

$

177

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CSA Z662:23 – Oil and gas pipeline systems

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1197

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CSA Z341 Series:26 – Storage of Hydrocarbons in underground formations

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878

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CSA B51:24 Boiler, Pressure Vessel, and Pressure Piping Code

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389

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ISO 10260:1992

ISO 10260:1992 Water quality – Measurement of biochemical parameters – Spectrometric determination of the chlorophyll-a concentration

CDN $82.00

SKU: 98bbe26dfbf8 Category:

Description

The procedure specified can be applied for phytoplankton in natural surface waters and for testing algal growth in bio-assays. Using appropriate sampling it can also be applied to phytobenthic communities. The principle is collection of algae by filtration, extraction of algal pigments, spectrometric determination of the chlorophyll-a concentration in the extract, evaluation of the chlorophyll-a and phaeopigment concentration from the difference of absorbance at 665 nm prior to and after acidification of the extract.

Edition

1

Published Date

1992-07-02

Status

PUBLISHED

Pages

6

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

The procedure specified can be applied for phytoplankton in natural surface waters and for testing algal growth in bio-assays. Using appropriate sampling it can also be applied to phytobenthic communities. The principle is collection of algae by filtration, extraction of algal pigments, spectrometric determination of the chlorophyll-a concentration in the extract, evaluation of the chlorophyll-a and phaeopigment concentration from the difference of absorbance at 665 nm prior to and after acidification of the extract.

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