3. Terminology 3.1 Definitions of Terms Specific to This Standard: 3.1.1 air change rate—the ratio of hourly conditioned and filtered outside air brought into the chamber, and chamber volume measured in identical volume units (normally expressed in air changes per hour, AC/h). 3.1.2...
2. Referenced Documents 2.1ASTM Standards: D 3195 Practice for Rotameter Calibration4 D 5014 Test Method for Measurement of Formaldehyde in Indoor Air (Passive Sampler Methodology)4 D 5116 Guide for Small-Scale Environmental Chamber Determinations of Organic Emissions from...
1. Scope 1.1 This test method measures the formaldehyde concentration in air and emission rate from wood products containing formaldehyde under conditions designed to simulate product use (see 11.5 and Note 7). The concentration in air and emission rate is determined in a large chamber under...
Immediately it will be the annual consumption day of 3.15. The purifier has been put into dismantling more products in the past two years, and the vehicle purifier has slowly entered people's vision. Environmental pollution has been recognized by all, people are clearly visible, understand the problem, you think a lot...
(1) Measurement of cabin background concentration The environmental test cabin doors cleaned by B2 will be closed and opened for operation. Taking the closing time of cabin doors as zero time, the test time is 24 hours (+1 h). The concentration of the cabin background after 24 hours of cabin...
The environmental chamber is mede of the innerchamber , outer chambef , air purification system , pollution source device and air sampling system . Among them , the inner chamber with the volume or 30m3 is the key part of the test chamber . The experimental result...