Document management — Portable Document Format — Integrity protection in encrypted documents in PDF ...
This document specifies how to extend the ISO 32000-2:2020 specification by adding extensions to the Encrypt dictionary and trailer dictionary to provide integrity protection to the encrypted PDF document. This document also ensures that extensions are fully backward-compatible.
These extensions are intended for developers of software that creates PDF files (PDF writers), software that reads…
Products from petroleum, synthetic and renewable sources — Fuels (class F) classification — Part 1: ...
This document defines the detailed classification of marine fuels within class F (fuels). It is intended to be read in conjunction with ISO 8216-99.
NOTEÂ Â Â Â Â Â Â Â Â Â Â Class F for fuels was originally defined as part of the method of classification for petroleum products given in ISOÂ 8681.
Analysis of natural gas —Biomethane — Determination of the content of compressor oil
This document gives general guidance for the sampling and gas chromatographic analysis of compressor oil in biomethane or compressed natural gas (CNG). The compressor oil mass fraction is determined by sampling on coalescing filters under defined operational conditions (the two first cubic meters of gas referring to standard conditions, delivered at a refuelling station).
Compressor oils are…
This document establishes a practice for the proximate analysis of coal and coke. It is intended for general utilization by the coal industry to provide a basis for comparison of coals and coke and for the determination of fixed carbon.
Test methods for electrical materials, printed board and other interconnection structures and assemb...
IEC 61189-2-808:2024 describes the thermal transient method to characterize the thermal resistance of an assembly consisting of a heat source (e.g. power device), an attachment material (e.g. solder) and a dielectric layer with electrode. This method is suitable to determine the thermal resistance of materials and assembly methods as well as to optimize the thermal flux to a heat sink.
NOTE:…