Method for measuring calcium contents of inhalable particles in building construction dust and method for detecting accuracy
A technology for building construction and measurement methods, which is used in measurement devices, preparation of samples for testing, and measurement of color/spectral properties, etc. The effect of improving measurement accuracy and accuracy, short sampling time and numerical stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0040] Such as figure 1 As shown, a method for determining the calcium content of inhalable particulate matter in construction dust requires the following steps in sequence:
[0041] Step 1: Take 100g of construction dust and place it in an ultrasonic vibrating sieve, screen through 250-mesh, 1200-mesh, and 5000-mesh sieves respectively, and collect an appropriate amount of samples that finally pass through the 5000-mesh sieve. The relationship between the sieve apertures is shown in Table 1 below:
[0042] Table 1 The relationship between the mesh number of the screen and the aperture of the screen
[0043] Sieve mesh (pieces / square inch) 250 1200 5000 Screen aperture (um) 58 11 2.6
[0044] Step 2, sample pretreatment, put the collected samples above into a blast drying oven for drying treatment, take out the samples after drying, and cool the taken out samples to room temperature; then weigh 0.0320g of samples with an electronic balance, and weigh ...
Embodiment 2
[0058] The working principle of embodiment two is basically the same as that of embodiment one, the only difference is: the quality of construction dust in step 1 is 120g, the quality of the sample taken with electronic balance in step 2 is 0.0313g, and the final measured The calcium content of inhalable particulate matter in construction dust is 216.28mg / kg.
Embodiment 3
[0060] The working principle of embodiment three is basically the same as that of embodiment one, and the only difference is: the quality of construction dust in step 1 is 150g, the quality of the sample taken by electronic balance in step 2 is 0.0358g, and the final measured The calcium content of inhalable particulate matter in construction dust is 221.51mg / kg.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com