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Evaluation of Quality-Control Data Collected the U.S. Geological Survey for Routine Water-Quality Activities at the Idaho National Laboratory, Idah by Gordon W. Rattray - Paperback
69.30 درهم

Evaluation of Quality-Control Data Collected the U.S. Geological Survey for Routine Water-Quality Activities at the Idaho National Laboratory, Idah by Gordon W. Rattray - Paperback

كن أول من يقيِّم هذا المنتج 

69.30 درهم 

  - ستوفر -69.30 درهم
الأسعار تشمل ضريبة القيمة المضافة  التفاصيل
رقم ال ISBN
9781288851072
الفئات
سياسة
الكاتب
Gordon W. Rattray
الناشر
Bibliogov
الوصف:

The U.S. Geological Survey, in cooperation with the U.S. Department of Energy, collects surface water and groundwater samples at and near the Idaho National Laboratory as part of a routine, site-wide, water-quality monitoring program. Quality-control samples are collected as part of the program to ensure and document the quality of environmental data. From 1996 to 2001, quality-control ...

تشحن من الولايات المتحدة
اشحن الى دبي (تغيير المدينة)
التوصيل خلال الخميس ٣١ يناير - السبت ٢ فبراير الي دبي

حالة السلعة:
جديدة
البائع:
InternationalBookStore (85% تقييم ايجابي)

معلومات المنتج

  •  

    المواصفات

    رقم ال ISBN
    9781288851072
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354753433
    المؤلفين
    الكاتب
    Gordon W. Rattray
    المؤلفين
    الناشر
    Bibliogov
    رقم ال ISBN
    9781288851072
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354753433
    المؤلفين
    الكاتب
    Gordon W. Rattray
    المؤلفين
    الناشر
    Bibliogov
    معلومات تقنية
    غلاف الكتاب
    غلاف عادي
    اللغات والبلدان
    لغة الكتاب
    الانجليزية
    إقرأ المزيد
  •  

    الوصف:

    The U.S. Geological Survey, in cooperation with the U.S. Department of Energy, collects surface water and groundwater samples at and near the Idaho National Laboratory as part of a routine, site-wide, water-quality monitoring program. Quality-control samples are collected as part of the program to

    The U.S. Geological Survey, in cooperation with the U.S. Department of Energy, collects surface water and groundwater samples at and near the Idaho National Laboratory as part of a routine, site-wide, water-quality monitoring program. Quality-control samples are collected as part of the program to ensure and document the quality of environmental data. From 1996 to 2001, quality-control samples consisting of 204 replicates and 27 blanks were collected at sampling sites. Paired measurements from replicates were used to calculate variability (as reproducibility and reliability) from sample collection and analysis of radiochemical, chemical, and organic constituents. Measurements from field and equipment blanks were used to estimate the potential contamination bias of constituents. The reproducibility of measurements of constituents was calculated from paired measurements as the normalized absolute difference (NAD) or the relative standard deviation (RSD). The NADs and RSDs, as well as paired measurements with censored or estimated concentrations for which NADs and RSDs were not calculated, were compared to specified criteria to determine if the paired measurements had acceptable reproducibility. If the percentage of paired measurements with acceptable reproducibility for a constituent was greater than or equal to 90 percent, then the reproducibility for that constituent was considered acceptable. The percentage of paired measurements with acceptable reproducibility was greater than or equal to 90 percent for all constituents except orthophosphate (89 percent), zinc (80 percent), hexavalent chromium (53 percent), and total organic carbon (TOC; 38 percent). The low reproducibility for orthophosphate and zinc was attributed to calculation of RSDs for replicates with low concentrations of these constituents. The low reproducibility for hexavalent chromium and TOC was attributed to the inability to preserve hexavalent chromium in water samples and high variability with the analytical method for TOC.

    خصائص المنتج:
    • الفئات: سياسة
    • غلاف الكتاب: غلاف عادي
    • لغة الكتاب: الانجليزية
    • الكاتب: Gordon W. Rattray
    • الناشر: Bibliogov
    • رقم ال ISBN: 9781288851072
    • عدد الصفحات: 88
    • لأبعاد (الارتفاع*العرض*العمق): 9.69 x 7.44 x 0.18 inches
 

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