Ceramic fiber batten strips shall be:

According to API 936, ceramic fiber batten strips are used in fiber lining applications to secure joints or protect against gas penetration. The specification sets a strict requirement on their length:

“Ceramic fiber batten strips shall be a maximum length of 3 ft (0.9 m).”

— API Std 936, Section 5.3.2.3​

Other anchoring methods such as lock studs or staples may apply in different contexts or materials, but they are not prescribed for ceramic fiber batten strips per this specific requirement.