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防护服从“出生”到应用

文章出处:潍坊安迪防护用品有限公司 人气:121发表时间:2020-10-14

1990年,美国消防协会(NFPA)和美国资料试验协会(ASTM)提出和开展了附加的规范,并且被OSHA认可。NFPA1991规范的对气密防护服提出了功能要求,这些要求包含防化学和防火焰测验,可防21种根本化学品。

美国环境局(EPA)指定作业安全与清洁管理局(OSHA)有职责对在损害资料和污染废猜中的工人供给健康和安全维护,OSHA对一切环境的安全规程做出清晰的反映,这些安全规程对一切的OSHA方案都清晰了运行规范。

In 1990, the American Fire Protection Association (NFPA) and the American information and Testing Association (ASTM) proposed and carried out additional specifications, which were recognized by OSHA. The functional requirements of airtight protective clothing are put forward in NFPA 1991. These requirements include chemical and flame resistance tests, which can prevent 21 kinds of essential chemicals.

The United States Environmental Agency (EPA) has designated the work safety and cleaning Administration (OSHA) to provide health and safety maintenance for workers who are in danger of damage data and pollution. OSHA clearly reflects the safety regulations of all environments, and these safety regulations clearly define the operation specifications of all OSHA programs.

根本的OSHA规范要求四级维护:A,B,C,D四级,处于每种风险等级的工人都有必要装备相应等级的防护设备和防护服,以充沛维护运用者。 

Level A--表明最大的风险程度,它对人的呼吸、眼睛或皮肤造成损伤, 这些损伤可能来自有毒蒸气、气体、微粒、化学飞溅、沉溺或触摸有毒资料。 它要求全关闭化学防护服,这种防护服有必要带SCBA或管路式呼吸器和恰当的附件。Level A化学防护服也可做成契合NFPA1991 规范。

Level B 表明环境要求最高的呼吸维护,但对皮肤维护的要求不高。

它要求SCBA或带逃生气瓶的正压式管路呼吸器,再加有头罩的话、学防护衣(连体式和长袖夹克;连体式,一或二件防飞溅防化服;或可独自运用的连体防化衣)。 

The basic OSHA specification requires four levels of maintenance: Level A, B, C, D. workers at each risk level must be equipped with corresponding level of protective equipment and protective clothing to fully maintain users.

Level a - indicates the maximum level of risk, which may cause damage to the person's breath, eyes or skin, which may come from toxic vapor, gas, particles, chemical spatter, addiction or touching toxic information. It requires full closure of chemical protective clothing, which is necessary with SCBA or line respirator and appropriate accessories. Level a chemical protective clothing can also be made to comply with NFPA 1991.

Level B indicates that the environment requires the highest respiratory maintenance, but the requirement for skin maintenance is not high.

It requires SCBA or positive pressure pipeline respirator with escape gas bottle, and protective clothing (one-piece and long sleeve jacket; one-piece, one or two pieces of anti splash chemical protective clothing; or one-piece chemical protective clothing that can be used alone).

防护服

另供给契合化学防护服未来欧洲规范:

第一类:气密型防护服 

第二类:非气密型防护服 

第三类:液体细密型防护服  

第四类:喷雾细密型防护服  

第五类:粉尘细密型防护服

第六类:有限喷液细密型防护服

In addition, it can meet the future European specification of chemical protective clothing

Class I: air tight protective clothing

The second category: non airtight protective clothing

The third category: liquid fine type protective clothing

The fourth category: spray fine protective clothing.

Category 5: fine dust protective clothing

Class 6: limited spray fine protective clothing

1、防护面料

正确挑选化学防护服,了解各种化学物质的穿透或浸透对被防护织物很重要。 

穿透试验检测气体,液体和固体经过另外一种固体物质的小孔或开口。穿透试验用于测验织物会不会漏,能不能阻挠微粒或化学物。当一种化学物被吸收后,在织物的一侧饱和,然后释放出吸收物或扩散到织物的另一侧,这就是浸透。发作浸透时织物的外表不一定要有小孔或开口,关于露出于有害液体,蒸汽和气体的织物来说,浸透试验很重要。

2、可见度 

关于处理突发事件的人来说,可见度高有利也有弊。举例来说,在风险的环境中时,处理突发事件的人能被其他人看到很重要,而有害物的突发事件一般不会发作在适宜的环境中,需求化学防护服具有高可见度是一个重要的特征。另外,也有这样的状况,由于但是度高而被发现与触摸化学物或生化物制剂相同风险。

3、缝线结构 

如果没有强而紧的缝口,世界上最好的织物都是没有用的,一个松的线头,缺口, 就会移走你和环境之间的屏障,使你处于风险之中。

4、防护服品种

不同的作业哟啊不同品种或装备的防护服,这就恰似我们供给很多品种防护服的原因,从头套,背心到围裙,连体服和全关闭防护服(B级和A级)。全关闭防护服有前进口和后进口两种挑选,既有背部平整用于外接气源的呼吸器,也有与SCBA配套的背部突起的防护服。

5、防护服结构 

全关闭防护服有许多部件和挑选。不同的状况需求不同类型的面罩。

1. Protective fabric

It is very important to select the chemical protective clothing correctly and understand the penetration or penetration of various chemicals.

The penetration test detects the passage of gases, liquids and solids through holes or openings in another solid substance. The penetration test is used to test whether the fabric can leak and block particles or chemicals. When a chemical is absorbed, it saturates on one side of the fabric, then releases the absorbent or diffuses to the other side of the fabric, which is called soaking. It is not necessary to have small holes or openings on the surface of the fabric when it is saturated. The penetration test is very important for fabrics exposed to harmful liquids, vapors and gases.

2. Visibility

For those who deal with emergencies, high visibility has its advantages and disadvantages. For example, in a risk environment, it is important that the person dealing with the emergency can be seen by others, while the emergency of hazardous substances will not occur in the appropriate environment. It is an important feature that the chemical protective clothing has high visibility. In addition, there are also situations where the risk of being found to be the same as touching chemical or biochemical preparations due to its high degree of exposure.

3. Stitch structure

Without strong and tight seams, the best fabrics in the world are useless. A loose thread, a gap, will remove the barrier between you and the environment, putting you at risk.

4. Types of protective clothing

Different types or equipment of protective clothing for different operations, which is just like the reason why we supply many kinds of protective clothing, from headgear, vest to apron, one-piece suit and fully closed protective clothing (Grade B and a). There are two kinds of full closed protective clothing: front inlet and rear inlet. There are not only respirators with flat back for external air source, but also protective clothing with protruding back matched with SCBA.

5. Structure of protective clothing

Fully closed protective clothing has many parts and options. Different conditions require different types of masks.