Interlaboratory Comparison of Thermal Conductivity Determinations with Guarded Hot Plates

Henry Robinson; Thomas Watson

doi:10.1520/STP46241S

SYMPOSIA PAPER Published: 01 January 1952

STP46241S

Interlaboratory Comparison of Thermal Conductivity Determinations with Guarded Hot Plates

Source

A description is given of a program of comparative thermal conductivity tests made in seventeen different laboratories on corkboard at mean temperatures from 20 F to 130 F with 20 different guarded hot plates. The objective of the program was to determine the reproducibility of results obtained in tests made in accordance with the requirements of ASTM Method of Test C 177-45. Examples of results showing good and poor agreement are presented and discussed. Histograms are given showing the frequency distribution of the average differences between the results obtained with each apparatus and the corresponding results obtained with a reference apparatus.

Author Information

Robinson, Henry, E.

National Bureau of Standards, Washington, D. C.

Watson, Thomas, W.

National Bureau of Standards, Washington, D. C.

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: C16

Pages: 36–44

DOI: 10.1520/STP46241S

ISBN-EB: 978-0-8031-6762-9

ISBN-13: 978-0-8031-6512-0

Interlaboratory Comparison of Thermal Conductivity Determinations with Guarded Hot Plates

Author Information

Related

Reprints and Permissions

Details