1.1This test method covers measuring the amount of light that penetrates through a Turf Reinforcement Mat.

1.2This test method does not provide light penetration values for TRM under variable normal sun and soil conditions. This test method determines nominal light penetration.

1.3The values stated as a percentage are to be regarded as the standard. The values provided in foot-candles are for information only.

1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.