PPS Revision Notice #2017-031
PPS 13.13, Issue 19 - Personal Protective Respiratory EquipmentSummary of Changes:
- Deleted reference to the following cancelled PPS's: 7.01; 10.29; 16.19; and 21.23.
- Specified respiratory equipment for use as per referenced in PPS 22.07.
- Updated material listed specified for PPS 16.18.
PPS 30.01, Issue 35 - Heat Treatment of Aluminum and Aluminum AlloysSummary of Changes:
- Revised 2024 alloy extruded bar, rod & shapes final temper from T81 to T6. As 2024 T4 ages to T6. See Table VI (Precipitation Hardening Schedule (Wrought Alloys)).
- Specified 3M #425 as an example of an acceptable aluminum foil tape.
This revision notice lists brief summaries of technical changes introduced for each of the revised PPS's. Please note that these summaries are not detailed and are intended only to assist in alerting users to changes which may affect them; refer to the applicable PPS for authorized, detailed procedure and requirements.
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