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Standards/approvals/directives

Switch with “CCC Ex” for the Chinese market

Iris Benkstein | Know-how
Switch with CCC Ex

CCC - without proof of China Compulsory Certification, many industrial goods are denied access to the "Middle Kingdom". Since 1st October 2020, this compulsory marking has also extended to products with explosion protection. Therefore, all WIKA instruments that fall …

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Play it safe with double block & bleed

Pratik R. Vishwakarma | Know-how
Play it safe with double block & bleed

What is the safest way to separate a process and the attached pressure measurement technology? The HSG 253 standard must be applied to this question, and it answers unequivocally: by means of an instrumentation valve with double block & bleed (DBB). This …

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SIL-certified: Functional safety with mechanical switches

July Yang | Know-how
Functional safety: SIL-certified mechanical switches

Mechanical pressure and temperature switches perform sensitive tasks in safety-relevant applications, e.g. the safety function and monitoring of limit values. Their functional safety must be guaranteed accordingly. This is always the case if the instruments fulfil …

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China Compulsory Certification (CCC) for electrical thermometers

Joachim Brückner | Temperature
CCC - China Compulsory Certification

The “China Compulsory Certification (CCC)” is a certification system of the People's Republic of China. Since 1 October 2020 it is, for example, no longer permissible to place explosion-protected electrical thermometers (resistance thermometers and thermocouples) …

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Are there any FDA-approved measuring instruments?

Jochen Gries | Know-how
FDA approval for measuring instruments

Does the FDA issue its own approvals for systems or devices and therefore also issue approvals for measuring devices? Find out more in the following blog post. There are always uncertainties with this topic, which is why I'd like to shed more light on the question in …

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