Traditional Chinese medicine — Zanthoxylum nitidum root
This document specifies the minimum requirements and test methods for Zanthoxyli root, which is the dried root of Zanthoxylum nitidum (Roxb.) DC..
This document applies to Zanthoxyli root sold and used as Chinese materia medica (whole medicinal materials) and decoction pieces derived from this plant.
Solid biofuels and pyrogenic biocarbon — Determination of sulfur and chlorine content
ISO 16994:2016 describes methods for the determination of the total sulfur and total chlorine content in solid biofuels. It specifies two methods for decomposition of the fuel and different analytical techniques for the quantification of the elements in the decomposition solutions. The use of automatic equipment is also included in ISO 16994:2016, provided that a validation is carried out as…
Pneumatic fluid power — Test methods for measuring acoustic emission pressure levels of exhaust sile...
This document specifies two methods of measuring the level of acoustic pressure at the outlet of an exhaust silencer:
— the first method, called "steady-state mode", is intended to evaluate the noise level under steady state flow, i.e. constant upstream pressure (steady-state test according to ISO 6358‑1); and
— the second method, called "discharge", is intended to measure the…
Refrigerated food lockers — Thermal and energy performance, ratings, environmental test conditions a...
This standard specifies requirements for the thermal and energy performance of refrigerated food lockers, in given environmental conditions and intended for the temporary cold storage of chilled or frozen pre-ordered or pre-selected foodstuff until the final collection by the consumer.
The standard also covers construction characteristics relevant for the thermal and energy performance.
This…
Additive manufacturing of metals — Powder bed fusion — Material properties of stainless steel alloys
This document covers additively manufactured stainless steel components using full-melt powder bed fusion such as electron beam melting and laser melting. The components produced by these processes are used typically in applications that require mechanical properties similar to machined forgings and wrought products. Components manufactured to this specification are often, but not necessarily,…
Traditional Chinese medicine — Sophora tonkinensis root and rhizome
This document specifies the minimum requirements and test methods for Vietnamese Sophora root, which is the dried root and rhizome of Sophora tonkinensis Gagnep. (Fam. Leguminosae).
This document applies to Vietnamese Sophora root sold and used as Chinese materia medica (whole medicinal materials) and decoction pieces derived from this plant.
Water quality — Determination of pHT in sea water — Method using the indicator dye m-cresol purple
ISO 18191:2015 specifies a spectrophotometric determination of the pHt of sea water on the total hydrogen ion concentration pH scale using the indicator dye m-cresol purple. The total hydrogen ion concentration, [H+]t, is expressed as moles per kilogram of sea water. The method is suitable for assaying oceanic levels of pHt 7,4 to 8,2 for normal sea water of practical salinity ranging from 20 to…
Test methods for assessing the performance of gas-phase air cleaning media and devices for general v...
ISO 10121-2:2013 aims to provide an objective test method to estimate the performance of any full size gas filtration device (GPACD) for general filtration regardless of media or technique used in the device. In fact, the goal of this part of ISO 10121 is to avoid relating the test data to internal parameters altogether. The benefit with this approach is that customers of GPACDs will be able to…
