Certifications and Ratings
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ISO 9001
The International Organization for Standardization (ISO) is a non-governmental, worldwide federation of national standards bodies from more than 140 countries (one from each country) which was established in 1947. The mission of ISO is to promote the development of standardization and related activities in the world with a view to facilitating the international exchange of goods and services, and to developing cooperation in the spheres of intellectual, scientific, technological and economic activity.

ISO 9001 is actually one category in a family of standards (ISO 9001, ISO 9002, ISO 9003) primarily concerned with "quality management". Like "beauty", everyone may have his or her idea of what "quality" is. In plain language, the standardized definition of "quality" in the ISO 9000 family refers to all those features of a product (or service) which are required by the customer. "Quality management" means what the organization does to ensure that its products conform to the customer's requirements.

The ISO 9000 families concern the way an organization goes about its work, and not directly the result of this work. In other words, it concerns processes, and not products – at least, not directly. Nevertheless, the way in which the organization manages its processes is obviously going to affect its final product.

However, ISO 9000 is not a family of product standards. The management system standards in these families state requirements for what the organization must do to manage processes influencing quality (ISO 9000). The philosophy is that these requirements are generic. No matter what the organization is or does, if it wants to establish a quality management system, such a system has a number of essential features which are spelled out in ISO 9000.

The standard intended for quality management system assessment and registration is ISO 9001. The standards apply uniformly to organizations of any size or description.

Ingress Protection Rating
All Newall linear encoders and scales carry an IP67 Rating. With an IP67 rating a product will be "dust tight" and remain completely sealed when immersed in water to a depth of 1 meter for 1 hour. (IEC 529)

There are a number of standards that exist worldwide to define the type and applicability of enclosures. In the United States the National Electrical Manufacturers Association (NEMA) is the most prevalent. Worldwide, the International Electrotechnical Commission (IEC) standards are most prevalent.

IEC International Standard 60529 (Edition 2.1: 2001-02) is a "classification of degrees of protection provided by enclosures as a system for specifying the enclosures of electrical equipment on the basis of the degree of protection provided by the enclosure."

Ingress Protection as it relates to sealing against the entry of solid and liquid objects. Complete details of this standard can be obtained from the IEC. This uniform and widely acknowledged classification system provides equipment designers and specifying agents with a convenient and reliable method of comparing relative levels of sealing between competing (connector) products. In its simplest form, the classification system consists of the letters "IP" followed by two separate digits, which denote increasingly greater sealing from solid objects and from water.

For example, a product rated as being sealed to IP55 will provide some degree of protection from penetration by dust and a jet spray of water, but it would not be expected to completely seal against all dust or being immersed in water.

The chart below clearly defines levels of IP ratings and should be used as a guide during the specification and design process.

1st IP#	Degree of protection against access to hazardous parts & ingress of solid objects	2nd IP#	Degree of protection against the ingress of water
0	No protection	0	No protection
1	Protected against solid foreign objects of 50mm Ø and >	1	Protected against vertically falling water drops
2	Protected against solid foreign objects of 12.5mm Ø and >	2	Protected against vertically falling water drops when enclosure titled up 15°
3	Protected against solid foreign objects of 2.5mm Ø and >	3	Protected against spraying water
4	Protected against solid foreign objects of 1.0mm Ø and >	4	Protected against splashing water
5	Dust protected	5	Protected against water jets
6	Dust tight	6	Protected against powerful jets from any direction
		7	Protected against the effects of total water immersion up to 1M
		8	Protected against the effects of total water immersion beyond 1M

All Newall Scales and Linear Encoders Exceed NEMA 6
Intended for indoor or outdoor use primarily to provide a degree of protection against hose-directed water, the entry of water during submersion at a limited depth, and damage from external ice formation. (NEMA 250)

NOTE: According to IEC 60529 – The dust chamber test is made using a chamber whereby the powder circulation pump may be replaced by other means suitable to maintain the talcum powder in suspension in a closed test chamber. The talcum powder used shall be able to pass through a square-meshed sieve the nominal wire diameter of which is 50µm and the nominal width of a gap between wires is 75µm. The amount of talcum powder used is 2kg per cubic meter of the test chamber volume. It shall not have been used for more than 20 tests.The enclosure shall be deemed category 1, whether reductions in pressure below the atmospheric pressure are present or not. The protection is satisfactory if no deposit of dust is observable inside the enclosure at the end of the test.