After informing the usage restriction of formaldehyde and chlorpyrifos under the revised building standard law in July of 2003, the Japan Testing Center for Construction Material composing of scholars and experts, and industry officials has established "the group for standardization of VOC emission rate from building materials" to enact "Standard Emission Rate of VOC for Building Materials," which is applied to the testing method and establishing standard value for 4 VOCs, such as toluene, xylene, ethybenzene and styrene. This is the voluntary guideline established by the group. In response to this voluntary guideline, other industry organizations including the Japan Construction Material & Housing Equipment Industries Federation (hereinafter referred to J-CHIF), the VOC voluntary labeling guideline has been established, which is now in operation. Asahi WoodTech has been promoting the acquisition of certification of "compliance with 4-VOC" (registered trademark of J-CHIF). The products with the certification are displayed with "compliance with 4-VOC" in catalogue and homepage according to "the guideline for displaying VOC levels for housing materials" in order for customers to select products with the lesser effects of indoor-pollution by VOC.
Target VOC and standard emission rate
|Standard value of emission rate
|Asahi WoodTech guideline*
|Confirm not to be used as raw material based on MSDS data sheet.
* Some materials are certified by Results of Test Reports
Standard values of emission rate defined by "Society for Standardization of VOC Emission Rate" are not fulfilled the environmental regulation under a high temperature over 28 ºC, since the values are targeted below the guideline value of indoor temperature for subjected VOCs specified by the Ministry of Health, Labor and Welfare under the normal assumed temperature conditions.