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ASTM D8334/D8334M-20

(Practice)

Standard Practice for Sampling of Cannabis/Hemp Post-Harvest Batches for Laboratory Analyses

Standard Practice for Sampling of Cannabis/Hemp Post-Harvest Batches for Laboratory Analyses

SIGNIFICANCE AND USE
5.1 This standard will provide best practices for the sampling of harvested cannabis inflorescence with the intent to assure representative sampling.  
5.2 The laboratory results and their respective harvest batch associations have implications and significance to regulatory requirements, quality control considerations throughout the product’s life cycle, and the safety of the consumers who may be adversely affected by consumption of product that was not tested in a homogeneous manner (3).  
5.3 This standard does not address the appropriate sampling of processed cannabis materials such as such as extracts, seeds, edibles, topicals, etc.  
5.4 This standard addresses the sampling of cannabis inflorescence destined for human or animal consumption.  
5.5 This standard does not address pre-harvest field sampling or large untrimmed or unprocessed harvest batches.
SCOPE
1.1 Cannabis harvested materials require sampling strategies throughout their life cycle, from cultivation to the end consumer. For purposes of this standard, the term cannabis is inclusive of all cannabis inflorescence, including hemp varieties. The qualitative and quantitative characteristics of cannabis/hemp for human or animal consumption has safety implications throughout the life cycle from cultivation to end consumer. This standard provides best practice procedures and protocols for sampling batches of harvested cannabis inflorescence. Cannabis/hemp materials often exhibit variability across different parts within the same plant or across different plants within the same cultivar, or both, (1, 2).2 Thus, sampling strategies are required which yield a representative a sample across a harvest batch. Representative sampling is required to ensure that the qualitative and quantitative test results accurately reflect cannabinoid identification, potency, identification and concentration of terpenes, concentration of trace metals, microbiological activity, mycotoxins, and concentration of pesticides across the batch.  
1.2 Where procedural aspects of this practice differ from local regulatory or jurisdictional requirements, the local regulatory or jurisdictional authority’s directives shall take precedence.  
1.3 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.4 This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
31-Oct-2020
ICS
11.120.99 - Other standards related to pharmaceutics
65.020.20 - Plant growing
71.040.10 - Chemical laboratories. Laboratory equipment
Technical Committee
D37 - Cannabis
Drafting Committee
D37.03 - Laboratory
Current Stage
Ref Project

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ASTM D8334/D8334M-20 - Standard Practice for Sampling of Cannabis/Hemp Post-Harvest Batches for Laboratory AnalysesASTM D8334/D8334M-20 - Standard Practice for Sampling of Cannabis/Hemp Post-Harvest Batches for Laboratory Analyses
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ASTM D8334/D8334M-20 - Standard Practice for Sampling of Cannabis/Hemp Post-Harvest Batches for Laboratory Analyses
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D8334/D8334M − 20
Standard Practice for
Sampling of Cannabis/Hemp Post-Harvest Batches for
1
Laboratory Analyses
This standard is issued under the fixed designation D8334/D8334M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 Cannabis harvested materials require sampling strate-
ization established in the Decision on Principles for the
gies throughout their life cycle, from cultivation to the end
Development of International Standards, Guides and Recom-
consumer. For purposes of this standard, the term cannabis is
mendations issued by the World Trade Organization Technical
inclusive of all cannabis inflorescence, including hemp variet-
Barriers to Trade (TBT) Committee.
ies.Thequalitativeandquantitativecharacteristicsofcannabis/
hemp for human or animal consumption has safety implica-
2. Referenced Documents
tions throughout the life cycle from cultivation to end
3
consumer. This standard provides best practice procedures and 2.1 ASTM Standards:
protocols for sampling batches of harvested cannabis inflores- D8270 Terminology Relating to Cannabis
cence.Cannabis/hempmaterialsoftenexhibitvariabilityacross
different parts within the same plant or across different plants 3. Terminology
2
within the same cultivar, or both, (1, 2). Thus, sampling
3.1 Definitions—For general terms related to cannabis, see
strategies are required which yield a representative a sample
Terminology D8270.
across a harvest batch. Representative sampling is required to
3.2 Definitions of Terms Specific to This Standard:
ensure that the qualitative and quantitative test results accu-
3.2.1 aliquot, n—a discrete quantity of a cannabis/hemp
rately reflect cannabinoid identification, potency, identification
(raw material) inflorescence collected by laboratory personnel/
and concentration of terpenes, concentration of trace metals,
certified/trained sample collectors that shall be combined into
microbiological activity, mycotoxins, and concentration of
representative samples for purposes of testing.
pesticides across the batch.
3.2.2 cannabis, n—a genus of flowering plants within the
1.2 Where procedural aspects of this practice differ from
Cannabaceae family identified by their distinctive glandular
local regulatory or jurisdictional requirements, the local regu-
trichomes, divided serrated leaves, and tough bast fibers.
latory or jurisdictional authority’s directives shall take prece-
dence.
3.2.2.1 Discussion—In this standard, the term cannabis is
used to mean cannabis raw material that includes resin
1.3 Units—The values stated in either SI units or inch-
cannabis, nutritional cannabis, and industrial cannabis, that
pound units are to be regarded separately as standard. The
includes hemp, in a harvested raw material form.
values stated in each system are not necessarily exact equiva-
3.2.3 composite sample, n—a final mixture of all sample
lents; therefore, to ensure conformance with the standard, each
aliquots pulled within a specific harvest batch, homogenized,
system shall be used independently of the other, and values
and labelled.
from the two systems shall not be combined.
3.2.4 harvest batch, n—a specifically identified quantity of
1.4 This standard does not purport to address all of the
cannabis inflorescence, that is uniform in cultivar, harvested
safety concerns, if any, associated with its use. It is the
within a concurrent time frame, and, cultivated using the same
responsibility of the user of this standard to establish appro-
pesticides and other agricultural chemicals.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. 3.2.5 inflorescence, n—a group or cluster of flowers ar-
ranged on a stem that is composed of a main branch or a
1
This practice is under the jurisdiction of ASTM Committee D37 on Cannabis
and is the direct responsibility of Subcommittee D37.03 on Laboratory.
3
Current edition approved Nov. 1, 2020. Published November 2020. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/D8334_D8334M-20. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
The boldface numbers in parentheses refer to a list of references at the end of Standards volume information, refer to the standard’s Document Summary page
...

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5.1 The sample preparation procedure for comminution impacts other downstream processes such as extraction and sonication, which ultimately affects the total analytical error (TAE) and measurement uncertainty.  
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5.2 Factors that may influence the sample preparation process include the prevention of cross-contamination (carryover) from a prior sample and an inadequate cleaning procedure between preparation of samples, poor sample handling, storage (sample preservation), and moisture content (drying methods) of plant material being greater than 15 % (15). Samples with high moisture content are hard to process completely and may yield lower analyte (that is, cannabinoid) concentration during extraction and further processing. Lastly, water activity Specification D8197 is recommended, activity (aw) range (0.55 to 0.65) for dry cannabis or hemp flower or both.  
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5.3 Information shall be evaluated in a flexible manner consistent with the needs of the authorizing program. This requires proper characterization of the current problem. For example, compounds may be ranked relative to the environmental criteria of the prospective alternatives, the replacement compound, and within bo...
SCOPE
1.1 This guide is intended to determine the relative environmental influence of new substances, consistent with the research and development (R&D) level of effort and is intended to be applied in a logical, tiered manner that parallels both the available funding and the stage of research, development, testing, and evaluation. Specifically, conservative assumptions, relationships, and models are recommended early in the research stage, and as the technology is matured, empirical data will be developed and used. Munition constituents are included and may include propellants, oxidizers, explosives, binders, stabilizers, metals, dyes, and other compounds used in the formulation to produce a desired effect. Munition systems range from projectiles, grenades, rockets/missiles, training simulators, to smokes and obscurants. Given the complexity of issues involved in the assessment of environmental fate and effects and the diversity of the systems used, this guide is broad in scope and not intended to address every factor that may be important in an environmental context. Rather, it is intended to reduce uncertainty at minimal cost by considering the most important factors related to human health and environmental impacts of energetic materials. This guide provides an outline for collecting data useful in a relative ranking procedure to provide the systems scientist with a sound basis for prospectively determining a selection of candidates based on environmental and human health criteria. The general principles in this guide are applicable to substances other than energetics if intended to be used in a similar manner with similar exposure profiles.  
1.2 The scope of this guide includes:  
1.2.1 Energetic and other new/novel materials and compositions in all stages of research, development, test and evaluation.  
1.2.2 Environmental assessment, including:
1.2.2.1 Human and ecological effects of the unexploded energetics and ...

  • Guide
    9 pages
    English language
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  • Guide
    9 pages
    English language
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ASTM
ASTM D8042-18(2023)(Test Method)
Test Method for Shrinkage Temperature of Wet Blue and Wet White

SIGNIFICANCE AND USE
5.1 This test method is designed to determine the temperature at which the Wet Blue or Wet White specimen experiences shrinkage. In this test method, shrinkage occurs as a result of hydrothermal denaturation of the collagen protein molecules which make up the fiber structure of the Wet Blue or Wet White. The shrinkage temperature of Wet Blue or Wet White is influenced by many different factors, most of which appear to affect the number and nature of crosslinking interactions between adjacent polypeptide chains of the collagen protein molecules. The value of the shrinkage temperature of Wet Blue or Wet White is commonly used as an indicator of the type of tannage or the degree of tannage, or both, of that particular Wet Blue or Wet White (especially for the more hydrothermally stable tannages such as chrome tannage).
SCOPE
1.1 This test method covers the determination of the shrinkage temperature of all types of Wet Blue and Wet White. The heating medium is water when the shrinkage temperature is at or below 98 °C. The heating medium is a glycerine-water solution when the shrinkage temperature is above 98 °C.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.  
1.3 This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    3 pages
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