ASTM E2755-15
用成年人的手测定医护人员手摩擦制剂的细菌消除效果的标准试验方法

Standard Test Method for Determining the Bacteria-Eliminating Effectiveness of Healthcare Personnel Hand Rub Formulations Using Hands of Adults

被代替

ASTM E2755-15 发布历史

ASTM E2755-15由美国材料与试验协会 US-ASTM 发布于 2015。

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ASTM E2755-15 发布之时，引用了标准

• ASTM E1054 抗菌剂灭活剂评价的标准实施规程
• ASTM E1174 卫生保健人员洗手液配方有效性评估的标准试验方法
• ASTM E2276 使用成人指甲测定卫生洗手剂和手术剂的细菌消除有效性的标准测试方法
• ASTM E2756 关于抗菌和抗病毒药物的标准术语

ASTM E2755-15的历代版本如下：

• 2022年 ASTM E2755-22 用成年人的手测定医护人员手摩擦制剂的细菌消除效果的标准试验方法
• 2015年 ASTM E2755-15 用成年人的手测定医护人员手摩擦制剂的细菌消除效果的标准试验方法
• 2010年 ASTM E2755-10 成人用手清洁配方的除菌效果测定的标准试验方法

5.1 Hand hygiene is considered one of the most important measures for preventing the spread of infectious microorganisms. Hand rubs reduce the microbial load on the hands without the use of soap and water, and are thus an important tool in the practice of good hand hygiene. Alcohol-based hand rubs are recommended in healthcare settings for use on hands that are not visibly soiled. They are formulated to be applied full strength to dry hands, “rubbed in” until dry, and are not rinsed off.

5.2 This test method is designed specifically to evaluate hand rubs for efficacy in eliminating bacteria from experimentally-contaminated hands. It is designed as an alternative to Test Method E1174, which was intended primarily to evaluate antimicrobial handwashing agents that are lathered with the aid of water and then rinsed off. When using Test Method E1174 to evaluate hand rubs, inadequate drying of the hands after contamination dilutes the test material and can compromise activity, to result in an underestimation of effectiveness. Additionally, because hand rubs are not rinsed after product use, activity can be further degraded by build-up of soil from the contaminating broth and inactivated challenge bacteria on the hands.

5.2.1 In this method, application to the hands of a small volume of high-titer test bacteria suspension minimizes soil load such that the skin is completely dry prior to application of the test material. Further, by applying the bacterial suspension only prior to those test material application cycles followed by sampling, excessive buildup of killed bacteria on the hands is avoided, and the potential impact of non-volatile test product ingredients on bacteria-eliminating effectiveness after ten consecutive applications can be specifically assessed.

5.3 A reference control is evaluated for each subject prior to evaluation of the test material. Data from the reference control helps to control for inter-subject variability, inter-experimental variability, and inter-laboratory variability; and enables improved statistical comparison of test materials evaluated in the same experiment.

5.4 This test method can be used to test any form of hand rubs, including gels, rinses, sprays, foams, and wipes when used according to label directions at typical “in-use” doses.

5.5 Susceptibility to biocides can vary among different species of bacteria and major differences have been noted between gram-negative and gram-positive organisms. This test method provides the option to use either a gram-negative bacterium (Serratia marcescens) or a gram-positive bacterium (Staphylococcus aureus) as the test organism. S. marcescens is used as a test organism in both Test Method E1174 and Test Method E2276. S. aureus is a highly relevant pathogen in healthcare, institutional, and community settings. Moreover, hands are an important veh......

标准号

ASTM E2755-15

发布

2015年

发布单位

美国材料与试验协会

替代标准

ASTM E2755-22

当前最新

ASTM E2755-22

 

 

引用标准

ASTM E1054 ASTM E1174 ASTM E2276 ASTM E2756

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