Evaluation of a Method to Detect and in Water

MW LeChevallier; WD Norton; RG Lee

doi:10.1520/STP17618S

SYMPOSIA PAPER Published: 01 January 1991

STP17618S

Evaluation of a Method to Detect and in Water

Source

The current study outlines a technique to simultaneously detect Giardia and Cryptosporidium in raw and tap water samples. The influence of various procedural steps, including filtration, elution, flotation, filter mounting and microscopy, was determined for the method. Overall, the method recovered 48% to 69% of the Giardia and 25% to 42% of the Cryptosporidium in spiked water samples. The method had an averaged detection limit of 1 organism/100 L of tap water. Use of phase-contrast and Nomarski differential interference contrast microscopy could detect false-positive algal cells and determine cysts and oocysts having “non-viable type” morphologies.

Author Information

LeChevallier, MW

Norton, WD

Lee, RG

Shipping & Handling

Domestic Shipping

Domestic orders are delivered via United Parcel Service (UPS) or United States Postal Service (USPS). Transit times average 3 to 5 business days. Please be aware that UPS will not deliver packages to Post Office Boxes.

Domestic Rush Orders

Please Contact Us.

International Standard Shipping

International orders are delivered via courier post services which can be either a postal service, courier service, or a combination of both. Standard Service is untraceable. Please allow 4-7 weeks for delivery.

International Expedited Shipping

Please Contact Us.

Please be aware that carriers will not deliver packages to Post Office Boxes. Because of the variability of customs processes and procedures in different countries, ASTM International cannot guarantee transit times to international destinations. Customs duty and taxes are the responsibility of the consignee.

Shipping & Handling charges follow the rate schedule, below:

Order Total	Shipping & Handling Fee (US Domestic)
Up to $50.00	$18.72
$50.01 to $100.00	$20.80
$100.01 to $150.00	$29.52
$150.01 to $250.00	$39.09
$250.01 to $500.00	$56.25
$500.01 to $750.00	$76.42
$750.01 to $1000.00	$93.15
$1000.01 to $1500.00	$121.27
$1500.01 to $2500.00	$158.38
$2500.01 to $4999.00	$209.04
$5000.00 to higher	FREE

Order Total	Shipping & Handling Fee (International)
Up to $50.00	$68.72
$50.01 to $100.00	$70.80
$100.01 to $150.00	$79.52
$150.01 to $250.00	$89.09
$250.01 to $500.00	$106.25
$500.01 to $750.00	$126.42
$750.01 to $1000.00	$143.15
$1000.01 to $1500.00	$171.27
$1500.01 to $2500.00	$208.38
$2500.01 to $4999.00	$259.04
$5000.00 to higher	FREE

Shipping and Handling charges are approximate. Additional charges may be incurred if your order requires multiple shipments. This does not apply to complete sets and sections.

Reprints and Permissions

Reprints and copyright permissions can be requested through the
Copyright Clearance Center

Details

Developed by Committee: D19

Pages: 483–498

DOI: 10.1520/STP17618S

ISBN-EB: 978-0-8031-5163-5

ISBN-13: 978-0-8031-1407-4

Evaluation of a Method to Detect and in Water

Author Information

Related

Reprints and Permissions

Details