T/GDWJ 003-2020 Active Group standards

T/GDWJ 003-2020 The threshold values of 38 trace elements in human hair for health evaluation

Publish Date: 2020-12-22 Implement Date: 2021-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GDWJ 003-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Health

ICS Name: Occupational safety and industrial hygiene

Publish Date: 2020-12-22

Implement Date: 2021-01-01

Scope

Scope: This document specifies the terms and definitions, evaluation objects, evaluation thresholds, and dietary guidance for the health evaluation of 38 trace elements (including iron, potassium, magnesium, and zinc) in residents' hair within Guangdong Province. This document is applicable as a reference for health assessment and dietary guidance for residents within Guangdong Province. Main technical content: By using the terms and definitions of the "Group Standard", evaluation objects, and evaluation thresholds of the "Group Standard", methods such as the central moment test, W test, D test, visual inspection of normality, lognormal distribution, percentile method, normal distribution method, non-parametric allowable interval method, and k-factor allowable interval method are employed to provide health evaluation thresholds for 38 trace elements contained in the hair of people of different genders and ages.