BHMA A156-8:2015 pdf download.AMERICAN NATIONAL STANDARD FOR DOOR CONTROLS - OVERHEAD STOPS AND HOLDERS
4.2.1 Single Point Adjustable Hold Open Types At the start of the test, with closer arm disconnected, door holders with a single point hold open function shall be adjusted to withstand a minimum of a 15 lbf (67 N) perpendicular to door in direction of closing without releasing. Doors shall be mechanically pushed or pulled into hold open, and pulled or pushed back to a closed position for the requirements specified in 4.2.6. Adjustment shall be checked at 1/2 the total cycles required and readjusted to the original holding force if necessary. At the conclusion of cycling, the force required to close the door shall be not less than a 10 lbf (44 N), the door holder shall not have lost nor gained more than 33% of the original holding force, and shall be capable of readjustment to the original holding force.
4.2.2 Single Point Non-Adjustable Hold Open Types Door holders shall be capable of withstanding a minimum ofa 15 lbf (67 N) perpendicular to the door in the direction of closing without releasing at the start of the test. Doors shall be mechanically pushed or pulled into hold open and pulled or pushed back to a closed position for the requirements specified in 4.2.6. At the end of one half the cycling period, they shall have a minimum holding force ofa 10 lbf (44 N). At the conclusion of the cycle test they shall not have lost more than 50% of the original holding force.
4.2.3 Positive Type Holders Doors shall be mechanically pushed or pulled into hold open and mechanically released and closed for the requirements specified in 4.2.6.
4.2.4 Friction Slide Type Holders Frictional holders shall be adjusted to resist an 8 lbf (36 N) and readjusted to an 8 lbf (36 N) at the end of each 10,000 cycles. At the end of the test, holder shall be capable of readjustment to resist an 8 lbf (36 N) without the necessity of renewing the friction unit. Apparatus shall operate at a 15 second cycle ±2 seconds. Total cycle test for the friction holders is specified in 4.2.6.
Certification that products offered meet the requirements of this Standard and conform to individual manufacturer's drawings, specifications, standards and quality assurance practices are available and in some circumstances are required. Buyer requirements determine the need for proof of conformance such as first article inspection, test laboratory reports, or listings.Specifiers requiring assertions of conformance utilize statements of conformance by individual manufacturers or test reports acceptable to
the buyer.BHMA A156-8 pdf download.