ASTM Standards for Resin Furniture by Grosfillex from
Contract Furnishings International
The American Society for Testing and Materials (ASTM) adopted performance standards for plastic chairs and chaises designed for outdoor use. They were set after a four-year effort by an SPI (The Society of the Plastics Industry) ad-hoc task force, in which Grosfillex participated, to develop and maintain quality and safety performance levels for plastic furniture.
All Grosfillex chairs and chaises meet the ASTM standards summarized below.
ASTM F 1561 -96 Class B
Performance Standard for Monobloc Plastic Chairs for Commercial Outdoor Use
- Chair must be able to hold a static load of 400 pounds for 30 minutes
- Chair must be able to hold a static load of 400 pounds while tilted back 4½ inches on its rear legs
- Chair must be able to sustain a weight of 150 pounds dropped on its seat 10 times from a height of eight inches
ASTM F 1858 Class B
Performance Standard for Multiposition Plastic Chairs for Outdoor Use
- Chair seat must be able to hold a static load of 400 pounds for 30 minutes
- Chair back must be able to hold a weight of 150 pounds suspended from it for 60 minutes
- Chair seat must be able to sustain a 150 pound weight dropped 10 times from a height of 6 inches
- Chair armrests must be able to sustain a weight of 250 pounds suspended from their front edges for 60 seconds
ASTM F 1838 Class B
Performance Standard for Monobloc Plastic Child Chairs for Commercial Outdoor Use
- Chair seat must be able to hold a static load of 150 pounds for 30 minutes
- Chair back must be able to hold a static load of 150 pounds while tilted back 3 inches on its rear legs
- Chair must be able to sustain a weight of 60 pounds dropped on its seat 10 times from a height of eight inches
ASTM F 1988-99 Class B
Performance Standard for Plastic Chaise Lounges for Commercial Outdoor Use
- Chaise seat must be able to hold a static load of 400 pounds for 30 minutes
- Chaise back, while in the furthest reclining position, must be able to hold a static load of 150 pounds for 60 minutes
- Chaise leg rest must be able to sustain a weight of 400 pounds for 30 minutes
- Chaise seat must be able to sustain a 150 pound weight dropped 10 times from a height of 8 inches
- Chaise leg rest must be able to sustain a 150 pound weight dropped 10 times from a height of 8 inches
- Chaise armrests must be able to support a 250 pound weight resting on the center point of the arms
Pass Criteria
- The same sample chair or chaise must pass all tests included in any one standard
- The sample chair or chaise must not show any sign of breakage or cracking, or other structural damage
Note: All tests are conducted on both wood and glass surfaces.
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