Your shopping cart is empty!
ASTM International, 04/01/2008
Publisher: ASTM
File Format: PDF
$32.00$65.00
Published:01/04/2008
Pages:14
File Size:1 file , 190 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
1.1 This practice is for assisting developers and users of air quality methods for sampling concentrations of both airborne and settled materials in characterizing measurements as to uncertainty. Where possible, analysis into uncertainty components as recommended in the ISO Guide to the Expression of Uncertainty in Measurement (1, ISO GUM) is suggested. Aspects of uncertainty estimation particular to air quality measurement are emphasized. For example, air quality assessment is often complicated by: the difficulty of taking replicate measurements owing to the large spatio-temporal variation in concentration values to be measured; systematic error or bias, both corrected and uncorrected; and the (rare) non-normal distribution of errors. This practice operates mainly through example. Background and mathematical development are relegated to appendices for optional reading.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Standard Practice for Outdoor Weathering of Construction Seals and Sealants
$43.00 $86.00
Standard Test Method for Surface Burning Characteristics of Building Materials
$49.00 $98.00
Standard Practice for Laboratories Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Laboratory Evaluation
$30.00 $60.00
Standard Test Method for Sag Resistance of Paints Using a Multinotch Applicator
$21.00 $42.00