1.1本试验方法包括通过贯入阻力测量确定喷射混凝土在原位或喷丸板中的凝结时间。 1.2以英寸-磅为单位的数值应视为标准值。 1.3本标准可能涉及危险材料、操作和设备。本标准并非旨在解决与其使用相关的所有安全问题。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This test method covers the determination of the time of setting of shotcrete, either in place or in shot panels, by means of penetration resistance measurements. 1.2 The values stated in inch-pound units are to be regarded as the standard. 1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.