YY/T 0700-2008Clothing for protection against contact with blood and body fluids—Determination of the resistance of protective clothing materials to penetration by blood and body fluids—Test method using synthetic blood (English PDF)

Foreword

This standard is identical with ISO 16603:2004 "blood and body fluids protective equipment protective clothing materials anti-penetration performance testing blood and body fluids Test methods for synthetic blood. " For ease of use, this standard made the following editorial changes. "This International Standard" be replaced by "this standard";

With a decimal point instead of a comma as the decimal point, ""; By deleting the preface to international standards. Appendix A of this standard is an informative annex.

Introduction

The staff members, especially in the health care industry or wounded patient treatment and care of contact can spread easily Diseases of biological fluids. These diseases caused by a variety of microorganisms can bring serious harm to life and health. In particular, can cause hepatitis [Hepatitis B virus (HBV) and hepatitis C virus (HCV)] and acquired immune deficiency syndrome (AIDS) [human immunodeficiency STD Virus (HIV)] of blood-borne diseases. Since engineering controls do not eliminate all possible contacts, people will focus on the use of protective clothing by To minimize direct contact with skin.

This standard concerns protective clothing and designed to resist blood and body fluid penetration guards. This test method is only for the protection of the materials or make Some materials used in the structure (such as joints) performance was evaluated. This test method does not design, the overall structure and junction parts or clothing or Other factors affecting the overall protection protective clothing performance was evaluated.

It is worth emphasizing that this test does not have to simulations of protective clothing material contact with the liquid in actual use. Therefore, the test data should be limited to the root According to synthetic blood penetration resistance and the material than on general assessments. Physical, chemical and thermodynamic factors may reduce material Protective properties, before the impact of these factors tested, might lead to protective properties of the material illusion. Evaluation should consider storage Conditions and validity of disposable (disposable) products, cleaning and sterilization of reusable product penetration resistance test for effect. Protective barriers Integrity also be due to the use of the process of bending, friction or by the impact of pollutants such as alcohol and wet with perspiration and other factors damaged. If these Into consideration, protective clothing material anti-synthetic blood penetration properties available to represent the desired conditions of use suitable pretreatment technique Evaluation.

Medical protective clothing materials are intended as blood, body fluids and other potentially infectious materials barrier. A variety of factors, such as the surface of the liquid Tension, viscosity and polarity, as well as the structure and hydrophilic or hydrophobic, can affect the wetting and penetrating properties of body fluids. Blood and body fluids (except saliva Outer) surface tension range of about 0.042N/m ~ 0.060N/m [2]. To simulate blood and body fluids wettability of the surface tension of synthetic blood Force adjusting to the lower limit of the range approaching that (0.042 ± 0.002) N/m.

This test method, when the protective clothing material in contact with the synthetic blood sample, to be added to the tank pressure test 14.0kPa (see step test A and B). The results of this test under hydrostatic pressure level has been verified with a human factor related [3]. However, some studies have shown that the actual Use can produce more than 345kPa mechanical pressure [4] [5]. Therefore, it is important to understand this test method is not simulate all the physical Pressure applied to the pressure and use of protective clothing on. The test can also be used as a screening test can simulate YY/T 0689 for evaluation of protection Test time and the test pressure test methods for taking anti-viral penetration in used. Test procedure C and D using progressive pressure press method Force rose 20.0kPa. The test procedure includes the extent possible, in order to grade the performance of the material.

Since health care, activity and possible exposure to blood or body fluids diversity case, the barrier of protective clothing may be due to the requirements of the application Change. Reasonable selection of test methods depends on the particular application of protective clothing and materials. Test methods to determine the response of wind carried Risk assessment [1].

1 Scope

This standard specifies the test method for the determination of protective clothing material to resist penetration of blood and body fluids. This test method uses Test equipment YY/T 0699 provisions, under a set of specified conditions in a synthetic blood in continuous contact protective clothing material.

This test method has a thick lining of blood synthesized easily absorbed in the protective clothing material may be invalid.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 3820 Textiles and textile products - Determination of thickness (GB/T 3820-1997, eqv ISO 5084:1996)

Determination of length and mass per unit area GB/T 4669 Textiles - Woven fabrics unit mass (GB/T 4669-2008,

ISO 3801:1997, IDT)

GB/T 5549 Determination of surfactant surface tension by drawing up liquid film method (GB/T 5549-1990, neq ISO 304. 1985)

YY 0669-2008 liquid chemicals protective equipment Protective clothing material resistance to compression test method performance liquid penetration (ISO 13994:1998, IDT)

3 Terms and Definitions

The following terms and definitions apply to this standard.