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Description of ASTM-E1207 2009ASTM E1207 - 09Standard Practice for The Sensory Evaluation of Axillary DeodorancyActive Standard ASTM E1207 | Developed by Subcommittee: E18.07 Book of Standards Volume: 15.08 ASTM E1207Significance and Use The procedures recommended in this practice can be used to clinically assess axillary deodorant efficacy of personal care products. This practice is applicable to the product categories which include deodorant and toilet soap bars, liquid bath soaps and gels, deodorant sticks, antiperspirants, creams and lotions, body talcs, and aerosol and pump delivery deodorants, antiperspirants, and body colognes. Procedures of the type described herein may be used to aid in the communication of efficacy within and between manufacturers and to the consumer through the various public communications media. Guidelines are suggested due to the need to determine the relative or absolute performance of experimental materials or of commercial products. These procedures may be used by persons who have familiarized themselves with these procedures and have had previous experience with sensory evaluation. This practice provides suggested procedures and is not meant to exclude alternate procedures which may be effectively used to provide the same clinical result. 1. Scope 1.1 This guide provides procedures which may be used in the design and analysis of studies to quantitatively assess the intensity of human axillary odor for the purpose of substantiating deodorant efficacy of personal care products. 1.2 This guide includes protocols for the selection and training of assessors, selection of subjects, experimental design, and statistical analyses. This practice is limited to assessment of axillary odor by trained assessors. Self-evaluation protocols are valid for selected sensory tasks but may be less sensitive. 1.3 With respect to the source of axillary odor, three groups of secretory glands are present in the axillae which participate to a greater or lesser extent in its production eccrine, apocrine, and sebaceous. Axillary odor has been primarily ascribed to the apocrine gland secretion (1) . Body odor intensity has been correlated with the volume of the secretory portion of the apocrine gland (2) and the density of the glands. 1.3.1 Apocrine glands are found primarily in the axillary vault in conjunction with axillary hairs (3) . Pure apocrine sweat is sterile and odorless and axillary odor results from degradation of apocrine sweat by resident skin bacteria (4) . High bacterial populations are found in moist regions of the body, especially in the axillae, providing the appropriate environment for growth (5) . 1.3.2 Eccrine glands keep the axillae moist through thermally and emotionally induced secretions (6) . 1.3.3 The sebaceous glands excrete higher molecular weight lipid materials which absorb and retain the volatile materials resulting from bacterial action (7) . The aerobic diphtheroids are able to produce the typical acrid axillary odor and the micrococcaceae produce an isovaleric acid-like odor when incubated with apocrine sweat (8) . Therefore, the most undesirable component of axillary odor is caused by degradation of apocrine sweat by particular bacteria normally found in the axillary vault. 1.4 Personal care products are sold and used primarily for their ability to reduce the perception of body odor not only by the individual using the product but also by individuals within the scope of contact. Deodorant protection may be achieved by these products through various modes of action. Antiperspirants achieve their primary efficacy by means of the action of inorganic salts on the eccrine gland production of sweat. Antimicrobial agents achieve deodorancy by inhibiting the growth and activity of the microflora in the axillary vault thus reducing the microbial decomposition of sweat and the consequent production of body odor. Absorbents function either by binding available moisture or malodorous substances. Fragrances are effective by altering the perception of malodor and increasing the degree of pleasantness. Other modes of control become important from time to time, representing changes in the state-of-the-art in product development. 1.5 The studies discussed herein are interpreted through the use of statistical tests of hypotheses. These hypotheses are usually of the form:
1.5.1 It should be noted that failure to reject this hypothesis at a specified level of significance does not prove the hypothesis, but merely that the weight of evidence provided by the experiment is not sufficient to reject the hypothesis. This could occur because either: a ) The hypothesis is close to truth and great experimental power would be required to reject it, or b ) The experiment by design was low in power and, therefore, incapable of rejecting the hypothesis; even when it is far from true. This can occur due to design structure or low sample size. These facts must be taken into consideration when interpreting study results.
ASTM Standards E253 Terminology Relating to Sensory Evaluation of Materials and Products E1697 Test Method for Unipolar Magnitude Estimation of Sensory Attributes Keywords Absorbent materials/applications; Aerosol containers/products; Aerosol deodorants; Antimicrobial formulations/testing; Antiperspirants; Appocrine gland; Axillary odor; Baseline axillary odor score; BO (body odor) intensity; Control odor score; Deodorant efficacy; Eccrine gland; Gels; Liquid bath soaps; Magnitude estimation rating; Malodor rating; Moisture control; Odor--sensory data/evaluation; Personal care products; Pump delivery deodorants; Right-left odor imbalance; Sebaceous gland; Secretory glands; Soap; Talc (body); Toilet soap bars; Trigeminal response; ICS Code ICS Number Code 71.100.70 (Cosmetics. Toiletries) DOI: 10.1520/E1207-09 ASTM International is a member of CrossRef. ASTM E1207The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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